added migrated 2.x add-ons

Signed-off-by: Kai Kreuzer <kai@openhab.org>

bundles/org.openhab.binding.onewire/.classpath

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" output="target/classes" path="src/main/java">
+		<attributes>
+			<attribute name="optional" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry excluding="**" kind="src" output="target/classes" path="src/main/resources">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" output="target/test-classes" path="src/test/java">
+		<attributes>
+			<attribute name="optional" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
+			<attribute name="test" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="output" path="target/classes"/>
+</classpath>

bundles/org.openhab.binding.onewire/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>org.openhab.binding.onewire</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.m2e.core.maven2Builder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.m2e.core.maven2Nature</nature>
+	</natures>
+</projectDescription>

bundles/org.openhab.binding.onewire/NOTICE

@@ -0,0 +1,13 @@
+This content is produced and maintained by the openHAB project.
+
+* Project home: https://www.openhab.org
+
+== Declared Project Licenses
+
+This program and the accompanying materials are made available under the terms
+of the Eclipse Public License 2.0 which is available at
+https://www.eclipse.org/legal/epl-2.0/.
+
+== Source Code
+
+https://github.com/openhab/openhab-addons

bundles/org.openhab.binding.onewire/README.md

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+# OneWire Binding
+
+The OneWire binding integrates OneWire (also spelled 1-Wire) devices. 
+OneWire is a serial bus developed by Dallas Semiconductor.
+It provides cheap sensors for temperature, humidity, digital I/O and more.
+
+## Getting Started
+
+The OneWire File System (OWFS, https://owfs.org) provides an abstraction layer between the OneWire bus and this binding. 
+It is assumed that you already have a working OWFS installation.
+Besides your sensors, you need a busmaster device (e.g. DS9490R). 
+
+## Supported Things
+
+### Bridges
+
+Currently only one bridge is supported. 
+The `owserver` is the bridge that connects to an existing OWFS installation. 
+
+### Things
+
+There are different types of things: the simple one (`basic`), multisensors built around the DS1923/DS2438 chip (`ms-tx`) and more advanced sensors from Elaborated Networks (www.wiregate.de) (`ams`, `bms`), Embedded Data System (www.embeddeddatasystems.com)(`edsenv`) and Brain4Home (www.brain4home.eu) (`bae091x`). 
+
+** Important: Breaking Change **
+ 
+The thing types `ms-th`, `ms-tv`, `counter2`, `digitalio`, `digitalio2`, `digitalio8`, `ibutton`, `temperature` have been removed.
+
+## Discovery
+
+Discovery is supported for things. You have to add the bridges manually.  
+
+## Thing Configuration
+
+It is strongly recommended to use discovery and Paper UI for thing configuration.
+Please note that:
+
+* All things need a bridge.
+* The sensor id parameter supports only the dotted format, including the family id (e.g. `28.7AA256050000`).
+DS2409 MicroLAN couplers (hubs) are supported by adding their id and the branch (`main` or `aux`) in a directory-like format in front of the sensor id (e.g. `1F.EDC601000000/main/28.945042000000`).
+* Refresh time is the minimum time in seconds between two checks of that thing.
+It defaults to 300s for analog channels and 10s for digital channels.
+* Some thing channels need additional configuration, please see below in the channels section.
+
+### OWFS Bridge (`owserver`)
+
+There are no configuration options for the owserver besides the network address.
+It consists of two parts: `address` and `port`.
+
+The `address` parameter is used to denote the location of the owserver instance. 
+It supports both, a hostname or an IP address. 
+
+The `port` parameter is used to adjust non-standard OWFS installations.
+It defaults to `4304`, which is the default of each OWFS installation.  
+
+Bridges of type `owserver` are extensible with channels of type `owfs-number` and `owfs-string`. 
+  
+### Generic (`basic`)
+
+The `basic` thing supports iButton-like chips (DS1420, DS2401/DS1990A), temperature sensors (DS18B20, DS18S20, DS1822), digital i/o chips (DS2405, DS2406, DS2408, DS2413) and counter chips (DS2423).
+
+It has two parameters: sensor id `id` and refresh time `refresh`.
+
+Depending on the chip, either `present`, `temperature`, `digitalX` or `counterX` channel(s) are added.
+`X` is the number of the channel, starting from `0`.
+
+### Multisensor (`ms-tx`)
+
+The multisensor is build around the DS2438 or DS1923 chipset. 
+It always provides a `temperature` channel.
+
+Depnding on the actual sensor, additional channels (`current`, `humidity`, `light`, `voltage`, `supplyvoltage`) are added.
+If the voltage input of the DS2438 is connected to a humidity sensor, several common types are supported (see below).
+
+It has three parameters: sensor id `id`, refresh time `refresh` and `manualsensor` (advanced option).
+
+Known DS2438-base sensors are iButtonLink (https://www.ibuttonlink.com/) MS-T (recognized as generic DS2438), MS-TH, MS-TC, MS-TL, MS-TV.
+Unknown multisensors are added as generic DS2438 and have `temperature`, `current`, `voltage` and `supplyvoltage` channels.
+
+In case the sensor is not properly detected (e.g. because it is a self-made sensor), check if it is compatible with one of the sensors listed above. 
+You can use `manualsensor` to override the auto-detected sensortype by setting `DS2438`, `MS_TH`, `MS_TV`, `MS_TL` or `MS_TC`.
+
+### Elaborated Networks Multisensors (`ams`, `bms`)
+
+These things are complex devices from Elaborated networks. 
+They consist of a DS2438 and a DS18B20 with additional circuitry on one PCB.
+The AMS additionally has a second DS2438 and a DS2413 for digital I/O on-board.
+Analog light sensors can optionally be attached to both sensors.
+
+These sensors provide `temperature`, `humidity` and `supplyvoltage` channels.
+If the light sensor is attached and configured, a `light` channel is provided, otherwise a `current` channel.
+The AMS has an additional `voltage`and two `digitalX` channels.
+
+It has two (`bms`) or four (`ams`) sensors.
+The id parameter (`id`) has to be configured with the sensor id of the humidity sensor.
+
+Additionally the refresh time `refresh` can be configured.
+The AMS supports a `digitalrefresh` parameter for the refresh time of the digital channels.
+
+Since both multisensors have two temperature sensors on-board, the `temperaturesensor` parameter allows to select `DS18B20` or `DS2438` to be used for temperature measurement.
+This parameter has a default of `DS18B20` as this is considered more accurate.
+The `temperature` channel is of type `temperature` if the internal sensor is used and of type `temperature-por-res` for the external DS18B20.
+
+The last parameter is the `lightsensor` option to configure if an ambient light sensor is attached.
+It defaults to `false`.
+In that mode, a `current`  channel is provided.
+If set to `true`, a `light` channel is added to the thing.
+The correct formula for the ambient light is automatically determined from the sensor version.
+
+### Embedded Data System Environmental sensors (`edsenv`)
+
+This thing supports EDS0064, EDS0065, EDS0066 or EDS0067 sensors.
+It has two parameters: sensor id `id` and refresh time `refresh`.
+
+All things have a `temperature` channel.
+Additional channels (`light`, `pressure`, `humidity`, `dewpoint`, `abshumidity`) will be added if available from the sensor automatically.
+
+### Brain4Home BAE091x (`bae091x`)
+
+Currently this thing only supports BAE0910 sensors.
+All functional pins of this sensor have multiple functions which can be configured individually.
+For detailed information of each mode, please see the official documentation.
+Each pin has the can be configured as `disabled`.
+The necessary channels are automatically added.
+
+Pin 1 (`pin1`) has only one function `counter` (channel `counter`). 
+Pin 2 (`pin2`) can be configured as digital output (`output`, channel `digital2`) or pulse width modulated output (`pwm`, software PWM 4, channels `freq2`, `duty4`).
+Pin 6 (`pin6`) can be configured as digital in-/output (`pio`, channel `digital6`) or pulse width modulated output (`pwm`, software PWM 3, channels `freq1`, `duty3`).
+Pin 7 (`pin7`) can be configured as analog input (`analog`), digital output (`output`, channel `digital7`) or pulse width modulated output (`pwm`, hardware PWM 2, channels `freq2`, `duty2`).
+Pin 8 (`pin8`) can be configured as digital input (`input`, channel `digital8`), digital output (`output`, channel `digital8`) or pulse width modulated output (`pwm`, hardware PWM 1, channels `freq1`, `duty1`).
+
+Please note: support for this sensor is considered experimental.
+
+## Channels
+
+| Type-ID             | Thing                      | Item                     | readonly   | Description                                        |
+|---------------------|----------------------------|--------------------------|------------|----------------------------------------------------|
+| absolutehumidity    | ms-tx, ams, bms, edsenv    | Number:Density           | yes        | absolute humidity                                  |
+| current             | ms-tx, ams                 | Number:ElectricCurrent   | yes        | current                                            |
+| counter             | counter2                   | Number                   | yes        | countervalue                                       |
+| dewpoint            | ms-tx, ams, bms, edsenv    | Number:Temperature       | yes        | dewpoint                                           |
+| dio                 | digitalX, ams              | Switch                   | no         | digital I/O, can be configured as input or output  |
+| humidity            | ms-tx, ams, bms, edsenv    | Number:Dimensionless     | yes        | relative humidity                                  |
+| humidityconf        | ms-tx                      | Number:Dimensionless     | yes        | relative humidity                                  |
+| light               | ams, bms, edsenv           | Number:Illuminance       | yes        | lightness                                          |
+| owfs-number         | owserver                   | Number                   | yes        | direct access to OWFS nodes                        |
+| owfs-string         | owserver                   | String                   | yes        | direct access to OWFS nodes                        |
+| present             | all                        | Switch                   | yes        | sensor found on bus (yes = ON)                     |
+| pressure            | edsenv                     | Number:Pressure          | yes        | environmental pressure                             |
+| supplyvoltage       | ms-tx                      | Number:ElectricPotential | yes        | sensor supplyvoltage                               |
+| temperature         | temperature, ms-tx, edsenv | Number:Temperature       | yes        | environmental temperature                          |
+| temperature-por     | temperature                | Number:Temperature       | yes        | environmental temperature                          |
+| temperature-por-res | temperature, ams, bms      | Number:Temperature       | yes        | environmental temperature                          |
+| voltage             | ms-tx, ams                 | Number:ElectricPotential | yes        | voltage input                                      |
+| bae-pwm-frequency   | bae091x                    | Number:Frequency         | no         | frequency for PWM output                           |
+| bae-pwm-duty        | bae091x                    | Number:Dimensionless     | no         | duty cycle (0-100%) for PWM output                 |
+| bae-di              | bae091x                    | Switch                   | yes        | digital input                                      |
+| bae-do              | bae091x                    | Switch                   | no         | digital output                                     |
+| bae-pio             | bae091x                    | Switch                   | yes        | digital in-/output                                 |
+| bae-analog          | bae091x                    | Number:ElectricPotential | yes        | analog input                                       |
+| bae-counter         | bae091x                    | Number                   | yes        | countervalue                                       |
+
+### Digital I/O (`dio`)
+
+Channels of type `dio` channels each have two parameters: `mode` and `logic`.
+
+The `mode` parameter is used to configure this channels as `input` or `output`.
+
+The `logic` parameter can be used to invert the channel.
+In `normal` mode the channel is considered `ON` for logic high, and `OFF` for logic low.
+In `inverted` mode `ON` is logic low and `OFF` is logic high.
+
+### Humidity (`humidity`, `humidityconf`, `abshumidity`, `dewpoint`)
+
+Depending on the sensor, a `humidity` or `humidityconf` channel may be added.
+This is only relevant for DS2438-based sensors of thing-type `ms-tx`.
+`humidityconf`-type channels have the `humiditytype` parameter.
+Possible options are `/humidity` for HIH-3610 sensors, `/HIH4000/humidity` for HIH-4000 sensors, `/HTM1735/humidity` for HTM-1735 sensors and `/DATANAB/humidity` for sensors from Datanab.
+
+All humidity sensors also support `absolutehumidity` and `dewpoint`.
+
+### OWFS Direct Access (`owfs-number`, `owfs-string`)
+
+These channels allow direct access to OWFS nodes.
+They have two configuration parameters: `path` and `refresh`.
+
+The `path` parameter is mandatory and contains a full path inside the OWFS (e.g. `statistics/errors/CRC8_errors`).
+
+The `refresh` parameter is the number of seconds between two consecutive (successful) reads of the node.
+It defaults to 300s.
+
+### Temperature (`temperature`, `temperature-por`, `temperature-por-res`)
+
+There are three temperature channel types: `temperature`, `temperature-por`and `temperature-por-res`.
+The correct channel-type is selected automatically by the thing handler depending on the sensor type.
+
+If the channel-type is `temperature`, there is nothing else to configure.
+
+Some sensors (e.g. DS18x20) report 85 °C as Power-On-Reset value.
+In some installations this leads to errorneous temperature readings.
+If the `ignorepor` parameter is set to `true` 85 °C values will be filtered.
+The default is `false` as correct reading of 85 °C will otherwise be filtered, too.
+Please note that the parameter value must not be set in quotation marks (see example below).
+
+A channel of type `temperature-por-res` has one parameter: `resolution`.
+OneWire temperature sensors are capable of different resolutions: `9`, `10`, `11` and `12` bits.
+This corresponds to 0.5 °C, 0.25 °C, 0.125 °C, 0.0625 °C respectively.
+The conversion time is inverse to that and ranges from 95 ms to 750 ms.
+For best performance it is recommended to set the resolution only as high as needed. 
+ 
+ 
+### BAE PWM (`bae-pwm-frequency`, `bae-pwm-duty`)
+
+PWM output 1 and 3 (2 and 4) share a frequency channel `pwmfreq1` (`pwmfreq2`).
+Each PWM output has its own duty cycle (`pwmduty1` to `pwmduty4`).
+
+The frequency channel has two configuration options (`prescaler`, `reversePolarity`).
+The `prescaler` sets the frequency range which can be used.
+Valid values are `0`to `7` (`0` => 245 Hz - 8 MHz, `1`=> 123 Hz - 4 MHz, `2` => 62 Hz - 2 MHz, `3` => 31 Hz - 1 MHz, `4` => 16 Hz - 500 kHz, `5` => 8 Hz - 250 kHz, `6` => 4 Hz - 125 kHz, `7` => 2 Hz - 62.5 kHz).
+The default value is `0`.
+The `reversePolarity` option is used to invert the output.
+It can be `true` or `false`.
+The default value is `false`.
+
+The duty cycle can be set from 0-100%.
+
+### BAE PIO (`bae-pio`)
+
+
+The PIO channel (programmable I/O channel) has two configuration options: `mode` and `pulldevice`.
+The `mode`can be set to `input`or `output`.
+The default is `input`.
+
+The `pulldevice` is only relevant for  `input` mode.
+It can be configured as `disabled`, `pullup`, `pulldown`.
+The default is disabled.
+ 
+
+## Full Example
+
+** Attention: Adding channels with UIDs different from the ones mentioned in the thing description will not work and may cause problems.
+Please use the pre-defined channel names only. **
+
+This is the configuration for a OneWire network consisting of an owserver as bridge (`onewire:owserver:mybridge`) as well as a temperature sensor, a BMS and a 2-port Digital I/O as things (`onewire:basic:mybridge:mysensor`, `onewire:bms:mybridge:mybms`, `onewire:basic:mybridge:mydio`). 
+
+### demo.things:
+
+```
+Bridge onewire:owserver:mybridge [ 
+    network-address="192.168.0.51" 
+    ] {
+    
+    Thing basic mysensor [
+        id="28.505AF0020000", 
+        refresh=60
+        ] {
+            Channels:
+                Type temperature-por-res : temperature [
+                    ignorepor=true,
+                    resolution="11"
+                ]
+        } 
+    
+    Thing bms mybms [
+        id="26.CD497C010000",
+        refresh=60, 
+        lightsensor=true, 
+        temperaturesensor="DS18B20" 
+        ] {
+            Channels:
+                Type temperature-por-res : temperature [
+                    ignorepor=false,
+                    resolution="9"
+                ]
+        } 
+
+    Thing basic mydio [
+        id="3A.67F113000000"
+        ] {
+            Channels:
+                Type dio : digital0 [
+                    mode="input"
+                ]
+                Type dio : digital1 [
+                    mode="output"
+                ]
+        }
+        
+    Channels:
+        Type owfs-number : crc8errors [
+            path="statistics/errors/CRC8_errors"
+        ]
+}
+```
+
+### demo.items:
+
+```
+Number:Temperature      MySensor    "MySensor [%.1f °C]"            { channel="onewire:basic:mybridge:mysensor:temperature" }
+Number:Temperature      MyBMS_T     "MyBMS Temperature [%.1f °F]"   { channel="onewire:bms:mybridge:mybms:temperature" }
+Number:Dimensionless    MyBMS_H     "MyBMS Humidity [%.1f %unit%]"  { channel="onewire:bms:mybridge:mybms:humidity" }
+Switch                  Digital0    "Digital 0"                     { channel="onewire:basic:mybridge:mydio:digital0" }
+Switch                  Digital1    "Digital 1"                     { channel="onewire:basic:mybridge:mydio:digital1" }
+Number                  CRC8Errors  "Bus-Errors [%d]"               { channel="onewire:owserver:mybridge:crc8errors" }
+```
+
+### demo.sitemap:
+
+```
+sitemap demo label="Main Menu"
+{
+    Frame {
+        Text item=MySensor
+        Text item=MyBMS_T
+        Text item=MyBMS_H
+        Text item=CRC8Errors
+        Text item=Digital0
+        Switch item=Digital1
+    }
+}
+```

bundles/org.openhab.binding.onewire/pom.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-v4_0_0.xsd">
+
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.openhab.addons.bundles</groupId>
+    <artifactId>org.openhab.addons.reactor.bundles</artifactId>
+    <version>3.0.0-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>org.openhab.binding.onewire</artifactId>
+
+  <name>openHAB Add-ons :: Bundles :: OneWire Binding</name>
+
+</project>

bundles/org.openhab.binding.onewire/src/main/feature/feature.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<features name="org.openhab.binding.onewire-${project.version}" xmlns="http://karaf.apache.org/xmlns/features/v1.4.0">
+	<repository>mvn:org.openhab.core.features.karaf/org.openhab.core.features.karaf.openhab-core/${ohc.version}/xml/features</repository>
+
+	<feature name="openhab-binding-onewire" description="OneWire Binding" version="${project.version}">
+		<feature>openhab-runtime-base</feature>
+		<bundle start-level="80">mvn:org.openhab.addons.bundles/org.openhab.binding.onewire/${project.version}</bundle>
+	</feature>
+</features>

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/DS2438Configuration.java

@@ -0,0 +1,230 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.stream.Collectors;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.device.OwSensorType;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+
+/**
+ * The {@link DS2438Configuration} is a helper class for the multisensor thing configuration
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class DS2438Configuration {
+    private OwSensorType sensorSubType = OwSensorType.DS2438;
+    private String vendor = "Dallas/Maxim";
+    private String hwRevision = "0";
+    private String prodDate = "unknown";
+
+    private final Map<SensorId, OwSensorType> associatedSensors = new HashMap<>();
+
+    public DS2438Configuration(OwserverBridgeHandler bridgeHandler, SensorId sensorId) throws OwException {
+        OwSensorType sensorType = bridgeHandler.getType(sensorId);
+        if (sensorType != OwSensorType.DS2438) {
+            throw new OwException("sensor " + sensorId.getId() + " is not a DS2438!");
+        }
+        OwPageBuffer pageBuffer = bridgeHandler.readPages(sensorId);
+
+        String sensorTypeId = pageBuffer.getPageString(3).substring(0, 2);
+        switch (sensorTypeId) {
+            case "19":
+                vendor = "iButtonLink";
+                sensorSubType = OwSensorType.MS_TH;
+                break;
+            case "1A":
+                vendor = "iButtonLink";
+                sensorSubType = OwSensorType.MS_TV;
+                break;
+            case "1B":
+                vendor = "iButtonLink";
+                sensorSubType = OwSensorType.MS_TL;
+                break;
+            case "1C":
+                vendor = "iButtonLink";
+                sensorSubType = OwSensorType.MS_TC;
+                break;
+            case "F1":
+            case "F3":
+                vendor = "Elaborated Networks";
+                sensorSubType = OwSensorType.MS_TH;
+                break;
+            case "F2":
+                vendor = "Elaborated Networks";
+                sensorSubType = OwSensorType.MS_TH_S;
+                break;
+            case "F4":
+                vendor = "Elaborated Networks";
+                sensorSubType = OwSensorType.MS_TV;
+                break;
+            default:
+        }
+
+        if (sensorSubType == OwSensorType.MS_TH || sensorSubType == OwSensorType.MS_TH_S
+                || sensorSubType == OwSensorType.MS_TV) {
+            for (int i = 4; i < 7; i++) {
+                String str = new StringBuilder(pageBuffer.getPageString(i)).insert(2, ".").delete(15, 17).toString();
+                Matcher matcher = SensorId.SENSOR_ID_PATTERN.matcher(str);
+                if (matcher.matches()) {
+                    SensorId associatedSensorId = new SensorId(sensorId.getPath() + matcher.group(2));
+
+                    switch (matcher.group(2).substring(0, 2)) {
+                        case "26":
+                            DS2438Configuration associatedDs2438Config = new DS2438Configuration(bridgeHandler,
+                                    associatedSensorId);
+                            associatedSensors.put(associatedSensorId, associatedDs2438Config.getSensorSubType());
+                            associatedSensors.putAll(associatedDs2438Config.getAssociatedSensors());
+                            break;
+                        case "28":
+                            associatedSensors.put(associatedSensorId, OwSensorType.DS18B20);
+                            break;
+                        case "3A":
+                            associatedSensors.put(associatedSensorId, OwSensorType.DS2413);
+                            break;
+                        default:
+                    }
+                }
+            }
+            prodDate = String.format("%d/%d", pageBuffer.getByte(5, 0),
+                    256 * pageBuffer.getByte(5, 1) + pageBuffer.getByte(5, 2));
+            hwRevision = String.valueOf(pageBuffer.getByte(5, 3));
+        }
+    }
+
+    public Map<SensorId, OwSensorType> getAssociatedSensors() {
+        return associatedSensors;
+    }
+
+    /**
+     * get a list of sensor ids associated with this sensor
+     *
+     * @return a list of the sensor ids (if found), empty list otherwise
+     */
+    public List<SensorId> getAssociatedSensorIds() {
+        return new ArrayList<>(associatedSensors.keySet());
+    }
+
+    /**
+     * get all secondary sensor ids of a given type
+     *
+     * @param sensorType filter for sensors
+     * @return a list of OwDiscoveryItems
+     */
+    public List<SensorId> getAssociatedSensorIds(OwSensorType sensorType) {
+        return associatedSensors.entrySet().stream().filter(s -> s.getValue() == sensorType).map(s -> s.getKey())
+                .collect(Collectors.toList());
+    }
+
+    /**
+     * get a list of sensor types associated with this sensor
+     *
+     * @return a list of the sensor typess (if found), empty list otherwise
+     */
+    public List<OwSensorType> getAssociatedSensorTypes() {
+        return new ArrayList<>(associatedSensors.values());
+    }
+
+    /**
+     * get the number of associated sensors
+     *
+     * @return the number
+     */
+    public int getAssociatedSensorCount() {
+        return associatedSensors.size();
+    }
+
+    /**
+     * get hardware revision (available on some multisensors)
+     *
+     * @return hardware revision
+     */
+    public String getHardwareRevision() {
+        return hwRevision;
+    }
+
+    /**
+     * get production date (available on some multisensors)
+     *
+     * @return production date in ww/yy
+     */
+    public String getProductionDate() {
+        return prodDate;
+    }
+
+    /**
+     * get sensor type (without associated sensors)
+     *
+     * @return basic sensor type
+     */
+    public OwSensorType getSensorSubType() {
+        return sensorSubType;
+    }
+
+    /**
+     * get vendor name (if available)
+     *
+     * @return the vendor name
+     */
+    public String getVendor() {
+        return vendor;
+    }
+
+    /**
+     * determine multisensor type
+     *
+     * @param mainsensorType the type of the main sensor
+     * @param associatedSensorTypes a list of OwSensorTypes of all associated sensors
+     * @return the multisensor type (if known)
+     */
+    public static OwSensorType getMultisensorType(OwSensorType mainsensorType,
+            List<OwSensorType> associatedSensorTypes) {
+        OwSensorType multisensorType = OwSensorType.UNKNOWN;
+        switch (associatedSensorTypes.size()) {
+            case 0:
+                multisensorType = mainsensorType;
+                break;
+            case 1:
+                if (mainsensorType == OwSensorType.MS_TH_S && associatedSensorTypes.contains(OwSensorType.DS18B20)) {
+                    multisensorType = OwSensorType.BMS_S;
+                } else if (mainsensorType == OwSensorType.MS_TH
+                        && associatedSensorTypes.contains(OwSensorType.DS18B20)) {
+                    multisensorType = OwSensorType.BMS;
+                }
+                break;
+            case 3:
+                if (mainsensorType == OwSensorType.MS_TH_S && associatedSensorTypes.contains(OwSensorType.MS_TV)
+                        && associatedSensorTypes.contains(OwSensorType.DS18B20)
+                        && associatedSensorTypes.contains(OwSensorType.DS2413)) {
+                    // two DS2438 (first THS, second TV), DS18B20, DS2413
+                    multisensorType = OwSensorType.AMS_S;
+                } else if (mainsensorType == OwSensorType.MS_TH && associatedSensorTypes.contains(OwSensorType.MS_TV)
+                        && associatedSensorTypes.contains(OwSensorType.DS18B20)
+                        && associatedSensorTypes.contains(OwSensorType.DS2413)) {
+                    // two DS2438 (first TH, second TV), DS18B20, DS2413
+                    multisensorType = OwSensorType.AMS;
+                }
+                break;
+            default:
+        }
+
+        return multisensorType;
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/DigitalIoConfig.java

@@ -0,0 +1,105 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.CHANNEL_DIGITAL;
+
+import java.util.Arrays;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.owserver.OwserverDeviceParameter;
+import org.openhab.core.library.types.DecimalType;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.thing.ChannelUID;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.types.State;
+
+/**
+ * The {@link DigitalIoConfig} class provides the configuration of a digital IO channel
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class DigitalIoConfig {
+    private final String channelID;
+    private final ChannelUID channelUID;
+    private final OwserverDeviceParameter inParam;
+    private final OwserverDeviceParameter outParam;
+    private DigitalIoMode ioMode = DigitalIoMode.INPUT;
+    private DigitalIoLogic ioLogic = DigitalIoLogic.NORMAL;
+
+    public DigitalIoConfig(Thing thing, Integer channelIndex, OwserverDeviceParameter inParam,
+            OwserverDeviceParameter outParam) {
+        this.channelUID = new ChannelUID(thing.getUID(), String.format("%s%d", CHANNEL_DIGITAL, channelIndex));
+        this.channelID = String.format("%s%d", CHANNEL_DIGITAL, channelIndex);
+        this.inParam = inParam;
+        this.outParam = outParam;
+    }
+
+    public void setIoMode(String ioMode) {
+        this.ioMode = DigitalIoMode.valueOf(ioMode.toUpperCase());
+    }
+
+    public void setIoLogic(String ioLogic) {
+        this.ioLogic = DigitalIoLogic.valueOf(ioLogic.toUpperCase());
+    }
+
+    public Boolean isInverted() {
+        return (ioLogic == DigitalIoLogic.INVERTED);
+    }
+
+    public ChannelUID getChannelUID() {
+        return channelUID;
+    }
+
+    public String getChannelId() {
+        return channelID;
+    }
+
+    public OwserverDeviceParameter getParameter() {
+        return (ioMode == DigitalIoMode.INPUT) ? inParam : outParam;
+    }
+
+    public Boolean isInput() {
+        return (ioMode == DigitalIoMode.INPUT);
+    }
+
+    public Boolean isOutput() {
+        return (ioMode == DigitalIoMode.OUTPUT);
+    }
+
+    public DigitalIoMode getIoDirection() {
+        return ioMode;
+    }
+
+    public State convertState(Boolean rawValue) {
+        if (ioLogic == DigitalIoLogic.NORMAL) {
+            return rawValue ? OnOffType.ON : OnOffType.OFF;
+        } else {
+            return rawValue ? OnOffType.OFF : OnOffType.ON;
+        }
+    }
+
+    public DecimalType convertState(OnOffType command) {
+        if (ioLogic == DigitalIoLogic.NORMAL) {
+            return command.equals(OnOffType.ON) ? new DecimalType(1) : DecimalType.ZERO;
+        } else {
+            return command.equals(OnOffType.ON) ? DecimalType.ZERO : new DecimalType(1);
+        }
+    }
+
+    @Override
+    public String toString() {
+        return String.format("path=%s, mode=%s, logic=%s", Arrays.asList(getParameter()), ioMode, ioLogic);
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/DigitalIoLogic.java

@@ -0,0 +1,26 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+
+/**
+ * The {@link DigitalIoLogic} provides the logic level of a digital IO channel
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public enum DigitalIoLogic {
+    NORMAL,
+    INVERTED
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/DigitalIoMode.java

@@ -0,0 +1,26 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+
+/**
+ * The {@link DigitalIoMode} provides the direction of a digital IO channel
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public enum DigitalIoMode {
+    INPUT,
+    OUTPUT
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/OwBindingConstants.java

@@ -0,0 +1,162 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal;
+
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.device.OwChannelConfig;
+import org.openhab.binding.onewire.internal.device.OwSensorType;
+import org.openhab.core.thing.ThingTypeUID;
+import org.openhab.core.thing.type.ChannelTypeUID;
+
+/**
+ * The {@link OneWireBinding} class defines common constants, which are
+ * used across the whole binding.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class OwBindingConstants {
+    public static final String BINDING_ID = "onewire";
+
+    // List of all Thing Type UIDs
+    public static final ThingTypeUID THING_TYPE_OWSERVER = new ThingTypeUID(BINDING_ID, "owserver");
+    public static final ThingTypeUID THING_TYPE_MS_TX = new ThingTypeUID(BINDING_ID, "ms-tx");
+    public static final ThingTypeUID THING_TYPE_BMS = new ThingTypeUID(BINDING_ID, "bms");
+    public static final ThingTypeUID THING_TYPE_AMS = new ThingTypeUID(BINDING_ID, "ams");
+    public static final ThingTypeUID THING_TYPE_BASIC = new ThingTypeUID(BINDING_ID, "basic");
+    public static final ThingTypeUID THING_TYPE_EDS_ENV = new ThingTypeUID(BINDING_ID, "edsenv");
+    public static final ThingTypeUID THING_TYPE_BAE091X = new ThingTypeUID(BINDING_ID, "bae091x");
+
+    public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Collections
+            .unmodifiableSet(Stream.of(THING_TYPE_OWSERVER, THING_TYPE_AMS, THING_TYPE_BMS, THING_TYPE_MS_TX,
+                    THING_TYPE_EDS_ENV, THING_TYPE_BASIC, THING_TYPE_BAE091X).collect(Collectors.toSet()));
+
+    // List of all config options
+    public static final String CONFIG_ADDRESS = "network-address";
+    public static final String CONFIG_PORT = "port";
+
+    public static final String CONFIG_ID = "id";
+    public static final String CONFIG_RESOLUTION = "resolution";
+    public static final String CONFIG_IGNORE_POR = "ignorepor";
+    public static final String CONFIG_REFRESH = "refresh";
+    public static final String CONFIG_DIGITALREFRESH = "digitalrefresh";
+    public static final String CONFIG_OFFSET = "offset";
+    public static final String CONFIG_HUMIDITY = "humiditytype";
+    public static final String CONFIG_DIGITAL_MODE = "mode";
+    public static final String CONFIG_DIGITAL_LOGIC = "logic";
+    public static final String CONFIG_TEMPERATURESENSOR = "temperaturesensor";
+    public static final String CONFIG_LIGHTSENSOR = "lightsensor";
+    public static final String CONFIG_BAE_PIN_DISABLED = "disabled";
+    public static final String CONFIG_BAE_PIN_PIO = "pio";
+    public static final String CONFIG_BAE_PIN_COUNTER = "counter";
+    public static final String CONFIG_BAE_PIN_PWM = "pwm";
+    public static final String CONFIG_BAE_PIN_ANALOG = "analog";
+    public static final String CONFIG_BAE_PIN_IN = "input";
+    public static final String CONFIG_BAE_PIN_OUT = "output";
+
+    // list of all properties
+    public static final String PROPERTY_MODELID = "modelId";
+    public static final String PROPERTY_VENDOR = "vendor";
+    public static final String PROPERTY_SENSORCOUNT = "sensorCount";
+    public static final String PROPERTY_PROD_DATE = "prodDate";
+    public static final String PROPERTY_HW_REVISION = "hwRevision";
+
+    // List of all channel ids
+    public static final String CHANNEL_HUMIDITY = "humidity";
+    public static final String CHANNEL_ABSOLUTE_HUMIDITY = "absolutehumidity";
+    public static final String CHANNEL_DEWPOINT = "dewpoint";
+    public static final String CHANNEL_PRESENT = "present";
+    public static final String CHANNEL_TEMPERATURE = "temperature";
+    public static final String CHANNEL_LIGHT = "light";
+    public static final String CHANNEL_SUPPLYVOLTAGE = "supplyvoltage";
+    public static final String CHANNEL_VOLTAGE = "voltage";
+    public static final String CHANNEL_CURRENT = "current";
+    public static final String CHANNEL_PRESSURE = "pressure";
+    public static final String CHANNEL_DIGITAL = "digital";
+    public static final String CHANNEL_DIGITAL0 = "digital0";
+    public static final String CHANNEL_DIGITAL1 = "digital1";
+    public static final String CHANNEL_DIGITAL2 = "digital2";
+    public static final String CHANNEL_DIGITAL3 = "digital3";
+    public static final String CHANNEL_DIGITAL4 = "digital4";
+    public static final String CHANNEL_DIGITAL5 = "digital5";
+    public static final String CHANNEL_DIGITAL6 = "digital6";
+    public static final String CHANNEL_DIGITAL7 = "digital7";
+    public static final String CHANNEL_DIGITAL8 = "digital8";
+    public static final String CHANNEL_COUNTER = "counter";
+    public static final String CHANNEL_COUNTER0 = "counter0";
+    public static final String CHANNEL_COUNTER1 = "counter1";
+    public static final String CHANNEL_PWM_DUTY1 = "pwmduty1";
+    public static final String CHANNEL_PWM_DUTY2 = "pwmduty2";
+    public static final String CHANNEL_PWM_DUTY3 = "pwmduty3";
+    public static final String CHANNEL_PWM_DUTY4 = "pwmduty4";
+    public static final String CHANNEL_PWM_FREQ1 = "pwmfreq1";
+    public static final String CHANNEL_PWM_FREQ2 = "pwmfreq2";
+
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_ABSHUMIDITY = new ChannelTypeUID(BINDING_ID, "abshumidity");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_COUNTER = new ChannelTypeUID(BINDING_ID, "counter");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_CURRENT = new ChannelTypeUID(BINDING_ID, "current");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_DEWPOINT = new ChannelTypeUID(BINDING_ID, "dewpoint");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_DIO = new ChannelTypeUID(BINDING_ID, "dio");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_HUMIDITY = new ChannelTypeUID(BINDING_ID, "humidity");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_HUMIDITYCONF = new ChannelTypeUID(BINDING_ID, "humidityconf");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_LIGHT = new ChannelTypeUID(BINDING_ID, "light");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_PRESENT = new ChannelTypeUID(BINDING_ID, "present");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_PRESSURE = new ChannelTypeUID(BINDING_ID, "pressure");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_TEMPERATURE = new ChannelTypeUID(BINDING_ID, "temperature");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_TEMPERATURE_POR = new ChannelTypeUID(BINDING_ID,
+            "temperature-por");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_TEMPERATURE_POR_RES = new ChannelTypeUID(BINDING_ID,
+            "temperature-por-res");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_VOLTAGE = new ChannelTypeUID(BINDING_ID, "voltage");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_BAE_ANALOG = new ChannelTypeUID(BINDING_ID, "bae-analog");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_BAE_COUNTER = new ChannelTypeUID(BINDING_ID, "bae-counter");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_BAE_DIGITAL_OUT = new ChannelTypeUID(BINDING_ID, "bae-do");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_BAE_DIN = new ChannelTypeUID(BINDING_ID, "bae-in");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_BAE_DOUT = new ChannelTypeUID(BINDING_ID, "bae-out");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_BAE_PIO = new ChannelTypeUID(BINDING_ID, "bae-pio");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_BAE_PWM_DUTY = new ChannelTypeUID(BINDING_ID, "bae-pwm-duty");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_BAE_PWM_FREQUENCY = new ChannelTypeUID(BINDING_ID,
+            "bae-pwm-frequency");
+
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_OWFS_NUMBER = new ChannelTypeUID(BINDING_ID, "owfs-number");
+    public static final ChannelTypeUID CHANNEL_TYPE_UID_OWFS_STRING = new ChannelTypeUID(BINDING_ID, "owfs-string");
+
+    // Maps for Discovery
+    public static final Map<OwSensorType, ThingTypeUID> THING_TYPE_MAP;
+    public static final Map<OwSensorType, String> THING_LABEL_MAP;
+    public static final Map<OwSensorType, Set<OwChannelConfig>> SENSOR_TYPE_CHANNEL_MAP;
+
+    public static final Map<String, String> ACCEPTED_ITEM_TYPES_MAP = Util
+            .readPropertiesFile("accepted_itemtypes.properties");
+
+    static {
+        Map<String, String> properties = Util.readPropertiesFile("sensor.properties");
+        THING_TYPE_MAP = properties.entrySet().stream().filter(e -> e.getKey().endsWith(".thingtype"))
+                .collect(Collectors.toConcurrentMap(e -> OwSensorType.valueOf(e.getKey().split("\\.")[0]),
+                        e -> new ThingTypeUID(BINDING_ID, e.getValue())));
+        SENSOR_TYPE_CHANNEL_MAP = properties.entrySet().stream().filter(e -> e.getKey().endsWith(".channels"))
+                .collect(Collectors.toConcurrentMap(e -> OwSensorType.valueOf(e.getKey().split("\\.")[0]),
+                        e -> !e.getValue().isEmpty() ? Stream.of(e.getValue().split(","))
+                                .map(c -> OwChannelConfig.fromString(c)).collect(Collectors.toSet())
+                                : new HashSet<>()));
+        THING_LABEL_MAP = properties.entrySet().stream().filter(e -> e.getKey().endsWith(".label")).collect(
+                Collectors.toConcurrentMap(e -> OwSensorType.valueOf(e.getKey().split("\\.")[0]), e -> e.getValue()));
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/OwDynamicStateDescriptionProvider.java

@@ -0,0 +1,78 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal;
+
+import java.util.Locale;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.openhab.core.thing.Channel;
+import org.openhab.core.thing.ChannelUID;
+import org.openhab.core.thing.ThingUID;
+import org.openhab.core.thing.type.DynamicStateDescriptionProvider;
+import org.openhab.core.types.StateDescription;
+import org.osgi.service.component.annotations.Component;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Dynamic channel state description provider.
+ * Overrides the state description for the controls, which receive its configuration in the runtime.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+@Component(service = { DynamicStateDescriptionProvider.class,
+        OwDynamicStateDescriptionProvider.class }, immediate = true)
+public class OwDynamicStateDescriptionProvider implements DynamicStateDescriptionProvider {
+
+    private final Map<ChannelUID, StateDescription> descriptions = new ConcurrentHashMap<>();
+    private final Logger logger = LoggerFactory.getLogger(OwDynamicStateDescriptionProvider.class);
+
+    /**
+     * Set a state description for a channel. This description will be used when preparing the channel state by
+     * the framework for presentation. A previous description, if existed, will be replaced.
+     *
+     * @param channelUID
+     *            channel UID
+     * @param description
+     *            state description for the channel
+     */
+    public void setDescription(ChannelUID channelUID, StateDescription description) {
+        logger.trace("adding state description for channel {}", channelUID);
+        descriptions.put(channelUID, description);
+    }
+
+    /**
+     * remove all descriptions for a given thing
+     *
+     * @param thingUID the thing's UID
+     */
+    public void removeDescriptionsForThing(ThingUID thingUID) {
+        logger.trace("removing state description for thing {}", thingUID);
+        descriptions.entrySet().removeIf(entry -> entry.getKey().getThingUID().equals(thingUID));
+    }
+
+    @Override
+    public @Nullable StateDescription getStateDescription(Channel channel,
+            @Nullable StateDescription originalStateDescription, @Nullable Locale locale) {
+        if (descriptions.containsKey(channel.getUID())) {
+            logger.trace("returning new stateDescription for {}", channel.getUID());
+            return descriptions.get(channel.getUID());
+        } else {
+            return null;
+        }
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/OwException.java

@@ -0,0 +1,29 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+
+/**
+ * The {@link OwException} class defines an exception for handling OneWireExceptions
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class OwException extends Exception {
+    private static final long serialVersionUID = 71120587360960199L;
+
+    public OwException(String message) {
+        super(message);
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/OwHandlerFactory.java

@@ -0,0 +1,123 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.SUPPORTED_THING_TYPES;
+
+import java.util.HashMap;
+import java.util.Hashtable;
+import java.util.Map;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.openhab.binding.onewire.internal.discovery.OwDiscoveryService;
+import org.openhab.binding.onewire.internal.handler.AdvancedMultisensorThingHandler;
+import org.openhab.binding.onewire.internal.handler.BAE091xSensorThingHandler;
+import org.openhab.binding.onewire.internal.handler.BasicMultisensorThingHandler;
+import org.openhab.binding.onewire.internal.handler.BasicThingHandler;
+import org.openhab.binding.onewire.internal.handler.EDSSensorThingHandler;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+import org.openhab.core.config.discovery.DiscoveryService;
+import org.openhab.core.thing.Bridge;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.thing.ThingTypeUID;
+import org.openhab.core.thing.ThingUID;
+import org.openhab.core.thing.binding.BaseThingHandlerFactory;
+import org.openhab.core.thing.binding.ThingHandler;
+import org.openhab.core.thing.binding.ThingHandlerFactory;
+import org.osgi.framework.ServiceRegistration;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Reference;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link OwHandlerFactory} is responsible for creating things and thing
+ * handlers.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+@Component(service = ThingHandlerFactory.class, configurationPid = "binding.onewire")
+public class OwHandlerFactory extends BaseThingHandlerFactory {
+    Logger logger = LoggerFactory.getLogger(OwHandlerFactory.class);
+    private final Map<ThingUID, @Nullable ServiceRegistration<?>> discoveryServiceRegs = new HashMap<>();
+
+    @NonNullByDefault({})
+    private OwDynamicStateDescriptionProvider dynamicStateDescriptionProvider;
+
+    @Override
+    public boolean supportsThingType(ThingTypeUID thingTypeUID) {
+        return SUPPORTED_THING_TYPES.contains(thingTypeUID);
+    }
+
+    @Override
+    protected @Nullable ThingHandler createHandler(Thing thing) {
+        ThingTypeUID thingTypeUID = thing.getThingTypeUID();
+
+        if (OwserverBridgeHandler.SUPPORTED_THING_TYPES.contains(thingTypeUID)) {
+            OwserverBridgeHandler owserverBridgeHandler = new OwserverBridgeHandler((Bridge) thing);
+            registerDiscoveryService(owserverBridgeHandler);
+            return owserverBridgeHandler;
+        } else if (BasicMultisensorThingHandler.SUPPORTED_THING_TYPES.contains(thingTypeUID)) {
+            return new BasicMultisensorThingHandler(thing, dynamicStateDescriptionProvider);
+        } else if (AdvancedMultisensorThingHandler.SUPPORTED_THING_TYPES.contains(thingTypeUID)) {
+            return new AdvancedMultisensorThingHandler(thing, dynamicStateDescriptionProvider);
+        } else if (BasicThingHandler.SUPPORTED_THING_TYPES.contains(thingTypeUID)) {
+            return new BasicThingHandler(thing, dynamicStateDescriptionProvider);
+        } else if (EDSSensorThingHandler.SUPPORTED_THING_TYPES.contains(thingTypeUID)) {
+            return new EDSSensorThingHandler(thing, dynamicStateDescriptionProvider);
+        } else if (BAE091xSensorThingHandler.SUPPORTED_THING_TYPES.contains(thingTypeUID)) {
+            return new BAE091xSensorThingHandler(thing, dynamicStateDescriptionProvider);
+        }
+
+        return null;
+    }
+
+    @Override
+    public void unregisterHandler(Thing thing) {
+        super.unregisterHandler(thing);
+        logger.error("factory {} deleting thing {}", this, thing);
+    }
+
+    private synchronized void registerDiscoveryService(OwserverBridgeHandler owserverBridgeHandler) {
+        OwDiscoveryService owDiscoveryService = new OwDiscoveryService(owserverBridgeHandler);
+
+        this.discoveryServiceRegs.put(owserverBridgeHandler.getThing().getUID(),
+                bundleContext.registerService(DiscoveryService.class.getName(), owDiscoveryService, new Hashtable<>()));
+    }
+
+    @Override
+    protected synchronized void removeHandler(ThingHandler thingHandler) {
+        if (thingHandler instanceof OwserverBridgeHandler) {
+            // remove discovery service, if bridge handler is removed
+            ServiceRegistration<?> serviceReg = this.discoveryServiceRegs.remove(thingHandler.getThing().getUID());
+            if (serviceReg != null) {
+                OwDiscoveryService service = (OwDiscoveryService) bundleContext.getService(serviceReg.getReference());
+                serviceReg.unregister();
+                if (service != null) {
+                    service.deactivate();
+                }
+            }
+        }
+    }
+
+    @Reference
+    protected void setDynamicStateDescriptionProvider(OwDynamicStateDescriptionProvider provider) {
+        this.dynamicStateDescriptionProvider = provider;
+    }
+
+    protected void unsetDynamicStateDescriptionProvider(OwDynamicStateDescriptionProvider provider) {
+        this.dynamicStateDescriptionProvider = null;
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/OwPageBuffer.java

@@ -0,0 +1,147 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal;
+
+import java.nio.ByteBuffer;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.core.util.HexUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link OwPageBuffer} provides encapsulates a buffer for OwPacket payloads
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+
+@NonNullByDefault
+public class OwPageBuffer {
+    private final Logger logger = LoggerFactory.getLogger(OwPageBuffer.class);
+    public static final int PAGE_SIZE = 8;
+
+    private ByteBuffer byteBuffer;
+
+    /**
+     * constructor for empty buffer
+     *
+     */
+    public OwPageBuffer() {
+        byteBuffer = ByteBuffer.allocate(0);
+    }
+
+    /**
+     * constructor for new buffer of given length
+     *
+     * @param pageNum number of pages
+     */
+    public OwPageBuffer(int pageNum) {
+        byteBuffer = ByteBuffer.allocate(pageNum * PAGE_SIZE);
+    }
+
+    /**
+     * constructor for given byte array
+     *
+     * @param bytes byte array containing the data
+     */
+    public OwPageBuffer(byte[] bytes) {
+        if (bytes.length % PAGE_SIZE != 0) {
+            byteBuffer = ByteBuffer.allocate((bytes.length / PAGE_SIZE + 1) * PAGE_SIZE);
+            logger.warn("initializing buffer which is not aligned to pages (requested size is {})!", bytes.length);
+        } else {
+            byteBuffer = ByteBuffer.allocate(bytes.length);
+        }
+
+        byteBuffer.put(bytes);
+    }
+
+    /**
+     * get number of pages in this buffer
+     *
+     * @return number of pages
+     */
+    public int length() {
+        return byteBuffer.limit() / PAGE_SIZE;
+    }
+
+    /**
+     * get a single page as byte array
+     *
+     * @param pageNum page number, starting with 0
+     * @return byte array containing the page's data
+     */
+    public byte[] getPage(int pageNum) {
+        byte[] page = new byte[PAGE_SIZE];
+        byteBuffer.position(pageNum * PAGE_SIZE);
+        byteBuffer.get(page);
+        return page;
+    }
+
+    /**
+     * get a single page
+     *
+     * @param pageNum page number, starting with 0
+     * @return string representation of the page's data
+     */
+    public String getPageString(int pageNum) {
+        return HexUtils.bytesToHex(getPage(pageNum));
+    }
+
+    /**
+     * get a single byte in a page
+     *
+     * @param pageNum page number, starting with 0
+     * @param byteNum byte number, starting from 0 (beginning of page)
+     * @return integer of the requested byte
+     */
+    public int getByte(int pageNum, int byteNum) {
+        int index = pageNum * PAGE_SIZE + byteNum;
+        if (index < byteBuffer.limit()) {
+            return byteBuffer.get(index) & 0xFF;
+        } else {
+            return 0;
+        }
+    }
+
+    public void setByte(int pageNum, int byteNum, byte value) {
+        int index = pageNum * PAGE_SIZE + byteNum;
+        if (index < byteBuffer.limit()) {
+            byteBuffer.put(index, value);
+        } else {
+            throw new IllegalArgumentException("index out of range");
+        }
+    }
+
+    /**
+     * get this page buffer as byte array
+     *
+     * @return this page buffer as byte array
+     */
+    public byte[] getBytes() {
+        return byteBuffer.array();
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder s = new StringBuilder();
+        s.append(new String("["));
+        for (int i = 0; i < length(); i++) {
+            if (i > 0) {
+                s.append(new String(", "));
+            }
+            s.append(getPageString(i));
+        }
+        s.append(new String("]"));
+        return s.toString();
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/SensorId.java

@@ -0,0 +1,115 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+
+/**
+ * The {@link SensorId} provides a sensorID for the Onewire bus.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class SensorId {
+    public static final Pattern SENSOR_ID_PATTERN = Pattern
+            .compile("^\\/?((?:(?:1F\\.[0-9A-Fa-f]{12})\\/(?:main|aux)\\/)+)?([0-9A-Fa-f]{2}\\.[0-9A-Fa-f]{12})$");
+
+    private final String sensorId;
+    private final String path;
+    private final String fullPath;
+
+    /**
+     * construct a new SensorId object
+     *
+     * allowed formats:
+     * - "28.0123456789ab"
+     * - "1F.1234566890ab/main/28.0123456789ab"
+     * - "1F.1234566890ab/aux/28.0123456789ab"
+     * - leading "/" characters are allowed but not required
+     * - characters are case-insensitive
+     * - hubs ("1F.xxxxxxxxxxxx/aux/") may be repeated
+     */
+    public SensorId(String fullPath) {
+        Matcher matcher = SENSOR_ID_PATTERN.matcher(fullPath);
+        if (matcher.matches() && matcher.groupCount() == 2) {
+            path = matcher.group(1) == null ? "" : matcher.group(1);
+            sensorId = matcher.group(2);
+            this.fullPath = "/" + path + sensorId;
+        } else {
+            throw new IllegalArgumentException();
+        }
+    }
+
+    /**
+     * get the full path to the sensor
+     *
+     * @return full path (including hub parts, separated by "/" characters)
+     */
+    public String getFullPath() {
+        return fullPath;
+    }
+
+    /**
+     * get the sensor id
+     *
+     * @return sensor id without leading "/" character
+     */
+    public String getId() {
+        return sensorId;
+    }
+
+    /**
+     * get the path of this sensorId
+     *
+     * @return path without sensor id (including hub parts, separated by "/" characters)
+     */
+    public String getPath() {
+        return path;
+    }
+
+    /**
+     * get family id (first to characters of sensor id)
+     *
+     * @return the family id
+     */
+    public String getFamilyId() {
+        return sensorId.substring(0, 2);
+    }
+
+    @Override
+    public String toString() {
+        return fullPath;
+    }
+
+    @Override
+    public int hashCode() {
+        return this.fullPath.hashCode();
+    }
+
+    @Override
+    public boolean equals(@Nullable Object o) {
+        if (o == this) {
+            return true;
+        }
+
+        if (!(o instanceof SensorId)) {
+            return false;
+        }
+
+        return ((SensorId) o).fullPath.equals(fullPath);
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/Util.java

@@ -0,0 +1,102 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal;
+
+import java.io.IOException;
+import java.net.URL;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Properties;
+import java.util.stream.Collectors;
+
+import javax.measure.quantity.Dimensionless;
+import javax.measure.quantity.Temperature;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.core.library.types.QuantityType;
+import org.openhab.core.library.unit.SIUnits;
+import org.openhab.core.library.unit.SmartHomeUnits;
+import org.openhab.core.types.State;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link Util} is a set of helper functions
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class Util {
+    private static final Logger LOGGER = LoggerFactory.getLogger(Util.class);
+
+    /**
+     * calculate absolute humidity in g/m³ from measured values
+     *
+     * @param temperature the measured temperature
+     * @param relativeHumidity the measured relative humidity
+     * @return the corresponding absolute humidity
+     */
+    public static State calculateAbsoluteHumidity(QuantityType<Temperature> temperature,
+            QuantityType<Dimensionless> relativeHumidity) {
+        QuantityType<Temperature> temperatureDegC = temperature.toUnit(SIUnits.CELSIUS);
+        if (temperatureDegC == null) {
+            throw new IllegalArgumentException("could not change unit");
+        }
+        Double theta = temperatureDegC.doubleValue();
+        // saturation vapor pressure in kg/(m s^2)
+        Double saturationVaporPressure = 611.2 * Math.exp(17.62 * theta / (243.12 + theta));
+        // absolute humidity in kg/m^3
+        Double aH = relativeHumidity.doubleValue() / 100 * saturationVaporPressure / (461.52 * (273.15 + theta));
+        State absoluteHumidity = new QuantityType<>(aH, SmartHomeUnits.KILOGRAM_PER_CUBICMETRE).toUnit("g/m³");
+        if (absoluteHumidity != null) {
+            return absoluteHumidity;
+        } else {
+            throw new IllegalArgumentException("could not change unit");
+        }
+    }
+
+    /**
+     * calculates the dewpoint in °C from measured values
+     *
+     * @param temperature the measured temperature
+     * @param relativeHumidity the measured relative humidity
+     * @return the corresponding dewpoint
+     */
+    public static State calculateDewpoint(QuantityType<Temperature> temperature,
+            QuantityType<Dimensionless> relativeHumidity) {
+        QuantityType<Temperature> temperatureDegC = temperature.toUnit(SIUnits.CELSIUS);
+        if (temperatureDegC == null) {
+            throw new IllegalArgumentException("could not change unit");
+        }
+        Double theta = temperatureDegC.doubleValue();
+        Double rH = relativeHumidity.doubleValue() / 100;
+        // dewpoint in °C
+        Double dP = 243.12 * (((17.62 * theta) / (243.12 + theta) + Math.log(rH))
+                / (((17.62 * 243.12) / (243.12 + theta) - Math.log(rH))));
+        State dewPoint = new QuantityType<>(dP, SIUnits.CELSIUS);
+        return dewPoint;
+    }
+
+    public static Map<String, String> readPropertiesFile(String filename) {
+        URL resource = Thread.currentThread().getContextClassLoader().getResource(filename);
+        Properties properties = new Properties();
+        try {
+            properties.load(resource.openStream());
+            return properties.entrySet().stream()
+                    .collect(Collectors.toMap(e -> (String) e.getKey(), e -> (String) e.getValue()));
+        } catch (IOException e) {
+            LOGGER.warn("Could not read resource file {}, binding will probably fail: {}", filename, e.getMessage());
+            return new HashMap<>();
+        }
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/config/AMSHandlerConfiguration.java

@@ -0,0 +1,25 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.config;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+
+/**
+ * The {@link AMSHandlerConfiguration} is a helper class for the mstx thing handler configuration
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class AMSHandlerConfiguration extends BaseHandlerConfiguration {
+    public int digitalRefresh = 10;
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/config/BAE091xAnalogConfiguration.java

@@ -0,0 +1,25 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.config;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+
+/**
+ * The {@link BAE091xAnalogConfiguration} is a helper class for the BAE091x ADC Pin configuration
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class BAE091xAnalogConfiguration {
+    public Boolean hires = false;
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/config/BAE091xHandlerConfiguration.java

@@ -0,0 +1,30 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.config;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.OwBindingConstants;
+
+/**
+ * The {@link BAE091xHandlerConfiguration} is a helper class for the BAE091x thing handler configuration
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class BAE091xHandlerConfiguration extends BaseHandlerConfiguration {
+    public String pin1 = OwBindingConstants.CONFIG_BAE_PIN_DISABLED;
+    public String pin2 = OwBindingConstants.CONFIG_BAE_PIN_DISABLED;
+    public String pin6 = OwBindingConstants.CONFIG_BAE_PIN_DISABLED;
+    public String pin7 = OwBindingConstants.CONFIG_BAE_PIN_DISABLED;
+    public String pin8 = OwBindingConstants.CONFIG_BAE_PIN_DISABLED;
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/config/BAE091xPIOConfiguration.java

@@ -0,0 +1,26 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.config;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+
+/**
+ * The {@link BAE091xPIOConfiguration} is a helper class for the BAE091x PIO Pin configuration
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class BAE091xPIOConfiguration {
+    public String mode = "input";
+    public String pulldevice = "disabled";
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/config/BAE091xPWMConfiguration.java

@@ -0,0 +1,26 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.config;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+
+/**
+ * The {@link BAE091xPWMConfiguration} is a helper class for the BAE091x PWM Frequency configuration
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class BAE091xPWMConfiguration {
+    public int prescaler = 0;
+    public boolean reversePolarity = false;
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/config/BaseHandlerConfiguration.java

@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.config;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+
+/**
+ * The {@link BaseHandlerConfiguration} is a helper class for the base thing handler configuration
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class BaseHandlerConfiguration {
+    public @Nullable String id;
+    public int refresh = 300;
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/config/MstxHandlerConfiguration.java

@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.config;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.openhab.binding.onewire.internal.device.OwSensorType;
+
+/**
+ * The {@link MstxHandlerConfiguration} is a helper class for the mstx thing handler configuration
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class MstxHandlerConfiguration extends BaseHandlerConfiguration {
+    public @Nullable OwSensorType manualsensor;
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/device/AbstractDigitalOwDevice.java

@@ -0,0 +1,158 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.device;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.util.ArrayList;
+import java.util.BitSet;
+import java.util.List;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.DigitalIoConfig;
+import org.openhab.binding.onewire.internal.OwDynamicStateDescriptionProvider;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+import org.openhab.binding.onewire.internal.owserver.OwserverDeviceParameter;
+import org.openhab.core.config.core.Configuration;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.thing.Channel;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.types.Command;
+import org.openhab.core.types.State;
+import org.openhab.core.types.StateDescription;
+import org.openhab.core.types.StateDescriptionFragmentBuilder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link AbstractDigitalOwDevice} class defines an abstract digital I/O device
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public abstract class AbstractDigitalOwDevice extends AbstractOwDevice {
+    private final Logger logger = LoggerFactory.getLogger(AbstractDigitalOwDevice.class);
+
+    protected @NonNullByDefault({}) OwserverDeviceParameter fullInParam;
+    protected @NonNullByDefault({}) OwserverDeviceParameter fullOutParam;
+
+    protected final List<DigitalIoConfig> ioConfig = new ArrayList<>();
+
+    public AbstractDigitalOwDevice(SensorId sensorId, OwBaseThingHandler callback) {
+        super(sensorId, callback);
+    }
+
+    @Override
+    public void configureChannels() throws OwException {
+        Thing thing = callback.getThing();
+        OwDynamicStateDescriptionProvider dynamicStateDescriptionProvider = callback
+                .getDynamicStateDescriptionProvider();
+
+        for (Integer i = 0; i < ioConfig.size(); i++) {
+            String channelId = ioConfig.get(i).getChannelId();
+            Channel channel = thing.getChannel(channelId);
+
+            if (channel != null) {
+                Configuration channelConfig = channel.getConfiguration();
+
+                try {
+                    if (channelConfig.get(CONFIG_DIGITAL_MODE) != null) {
+                        ioConfig.get(i).setIoMode((String) channelConfig.get(CONFIG_DIGITAL_MODE));
+                    }
+                    if (channelConfig.get(CONFIG_DIGITAL_LOGIC) != null) {
+                        ioConfig.get(i).setIoLogic((String) channelConfig.get(CONFIG_DIGITAL_LOGIC));
+                    }
+                } catch (IllegalArgumentException e) {
+                    throw new OwException(channelId + " has invalid configuration");
+                }
+
+                if (dynamicStateDescriptionProvider != null) {
+                    StateDescription stateDescription = StateDescriptionFragmentBuilder.create()
+                            .withReadOnly(ioConfig.get(i).isInput()).build().toStateDescription();
+                    if (stateDescription != null) {
+                        dynamicStateDescriptionProvider.setDescription(ioConfig.get(i).getChannelUID(),
+                                stateDescription);
+                    } else {
+                        logger.warn("Failed to create state description in thing {}", thing.getUID());
+                    }
+                } else {
+                    logger.debug(
+                            "state description may be inaccurate, state description provider not available in thing {}",
+                            thing.getUID());
+                }
+
+                logger.debug("configured {} channel {}: {}", thing.getUID(), i, ioConfig.get(i));
+            } else {
+                throw new OwException(channelId + " not found");
+            }
+        }
+
+        isConfigured = true;
+    }
+
+    /**
+     * refreshes this sensor - note that the update interval check is not performed as its and i/o device
+     */
+    @Override
+    public void refresh(OwserverBridgeHandler bridgeHandler, Boolean forcedRefresh) throws OwException {
+        logger.trace("refresh of sensor {} started", sensorId);
+        if (isConfigured) {
+            State state;
+
+            BitSet statesSensed = bridgeHandler.readBitSet(sensorId, fullInParam);
+            BitSet statesPIO = bridgeHandler.readBitSet(sensorId, fullOutParam);
+
+            for (int i = 0; i < ioConfig.size(); i++) {
+                if (ioConfig.get(i).isInput()) {
+                    state = ioConfig.get(i).convertState(statesSensed.get(i));
+                    logger.trace("{} IN{}: raw {}, final {}", sensorId, i, statesSensed, state);
+                } else {
+                    state = ioConfig.get(i).convertState(statesPIO.get(i));
+                    logger.trace("{} OUT{}: raw {}, final {}", sensorId, i, statesPIO, state);
+                }
+                callback.postUpdate(ioConfig.get(i).getChannelId(), state);
+            }
+        }
+    }
+
+    /**
+     * get the number of channels
+     *
+     * @return number of channels
+     */
+    public int getChannelCount() {
+        return ioConfig.size();
+    }
+
+    public boolean writeChannel(OwserverBridgeHandler bridgeHandler, Integer ioChannel, Command command) {
+        if (ioChannel < getChannelCount()) {
+            try {
+                if (ioConfig.get(ioChannel).isOutput()) {
+                    bridgeHandler.writeDecimalType(sensorId, ioConfig.get(ioChannel).getParameter(),
+                            ioConfig.get(ioChannel).convertState((OnOffType) command));
+                    return true;
+                } else {
+                    return false;
+                }
+            } catch (OwException e) {
+                logger.info("could not write {} to {}: {}", command, ioChannel, e.getMessage());
+                return false;
+            }
+        } else {
+            throw new IllegalArgumentException("channel number out of range");
+        }
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/device/AbstractOwDevice.java

@@ -0,0 +1,140 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.device;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.types.State;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link AbstractOwClass} class defines an abstract onewire device
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public abstract class AbstractOwDevice {
+    private final Logger logger = LoggerFactory.getLogger(AbstractOwDevice.class);
+
+    protected SensorId sensorId;
+    protected OwSensorType sensorType;
+    protected OwBaseThingHandler callback;
+    protected Boolean isConfigured = false;
+
+    protected Set<String> enabledChannels = new HashSet<>();
+
+    /**
+     * constructor for the onewire device
+     *
+     * @param sensorId onewire ID of the sensor
+     * @param callback ThingHandler callback for posting updates
+     */
+    public AbstractOwDevice(SensorId sensorId, OwBaseThingHandler callback) {
+        this.sensorId = sensorId;
+        this.callback = callback;
+        this.sensorType = OwSensorType.UNKNOWN;
+    }
+
+    public AbstractOwDevice(SensorId sensorId, OwSensorType sensorType, OwBaseThingHandler callback) {
+        this.sensorId = sensorId;
+        this.callback = callback;
+        this.sensorType = sensorType;
+    }
+
+    /**
+     * configures the onewire devices channels
+     *
+     */
+    public abstract void configureChannels() throws OwException;
+
+    /**
+     * refresh this sensor
+     *
+     * @param bridgeHandler for sending requests
+     * @param forcedRefresh post update even if state did not change
+     * @throws OwException in case of communication error
+     */
+    public abstract void refresh(OwserverBridgeHandler owBridgeHandler, Boolean forcedRefresh) throws OwException;
+
+    /**
+     * enables a channel on this device
+     *
+     * @param channelID the channels channelID
+     */
+    public void enableChannel(String channelID) {
+        if (!enabledChannels.contains(channelID)) {
+            enabledChannels.add(channelID);
+        }
+    }
+
+    /**
+     * disables a channel on this device
+     *
+     * @param channelID the channels channelID
+     */
+    public void disableChannel(String channelID) {
+        if (enabledChannels.contains(channelID)) {
+            enabledChannels.remove(channelID);
+        }
+    }
+
+    /**
+     * get onewire ID of this sensor
+     *
+     * @return sensor ID
+     */
+    public SensorId getSensorId() {
+        return sensorId;
+    }
+
+    /**
+     * check sensor presence and update thing state
+     *
+     * @param owServerConnection
+     * @return sensors presence state
+     */
+
+    public Boolean checkPresence(OwserverBridgeHandler bridgeHandler) {
+        try {
+            State present = bridgeHandler.checkPresence(sensorId);
+            callback.updatePresenceStatus(present);
+            return OnOffType.ON.equals(present);
+        } catch (OwException e) {
+            logger.debug("error refreshing presence {} on bridge {}: {}", this.sensorId,
+                    bridgeHandler.getThing().getUID(), e.getMessage());
+            return false;
+        }
+    }
+
+    /**
+     * get this sensors type
+     *
+     * @param bridgeHandler bridge handler to request from if type formerly unknown
+     * @return this sensors type
+     * @throws OwException
+     */
+    public OwSensorType getSensorType(OwserverBridgeHandler bridgeHandler) throws OwException {
+        if (sensorType == OwSensorType.UNKNOWN) {
+            sensorType = bridgeHandler.getType(sensorId);
+        }
+        return sensorType;
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/device/BAE0910.java

@@ -0,0 +1,408 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.device;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.util.BitSet;
+
+import javax.measure.quantity.Dimensionless;
+import javax.measure.quantity.Frequency;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.config.BAE091xAnalogConfiguration;
+import org.openhab.binding.onewire.internal.config.BAE091xPIOConfiguration;
+import org.openhab.binding.onewire.internal.config.BAE091xPWMConfiguration;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+import org.openhab.binding.onewire.internal.owserver.OwserverDeviceParameter;
+import org.openhab.core.library.types.DecimalType;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.library.types.QuantityType;
+import org.openhab.core.library.unit.SmartHomeUnits;
+import org.openhab.core.thing.Channel;
+import org.openhab.core.thing.type.ChannelTypeUID;
+import org.openhab.core.types.Command;
+import org.openhab.core.types.State;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link BAE0910} class defines an BAE0910 device
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class BAE0910 extends AbstractOwDevice {
+    private static final int OUTC_OUTEN = 4;
+    private static final int OUTC_DS = 3;
+
+    private static final int PIOC_PIOEN = 4;
+    private static final int PIOC_DS = 3;
+    private static final int PIOC_PD = 2;
+    private static final int PIOC_PE = 1;
+    private static final int PIOC_DD = 0;
+
+    private static final int ADCC_ADCEN = 4;
+    private static final int ADCC_10BIT = 3;
+    @SuppressWarnings("unused") // for future use
+    private static final int ADCC_OFS = 2;
+    @SuppressWarnings("unused")
+    private static final int ADCC_GRP = 1;
+    @SuppressWarnings("unused")
+    private static final int ADCC_STP = 0;
+
+    private static final int TPMC_POL = 7;
+    private static final int TPMC_INENA = 5;
+    private static final int TPMC_PWMDIS = 4;
+    private static final int TPMC_PS2 = 2;
+    private static final int TPMC_PS1 = 1;
+    private static final int TPMC_PS0 = 0;
+
+    private final Logger logger = LoggerFactory.getLogger(BAE0910.class);
+    private final OwserverDeviceParameter pin1CounterParameter = new OwserverDeviceParameter("/counter");
+    private final OwserverDeviceParameter pin2OutParameter = new OwserverDeviceParameter("/out");
+    private final OwserverDeviceParameter pin6PIOParameter = new OwserverDeviceParameter("/pio");
+    private final OwserverDeviceParameter pin7AnalogParameter = new OwserverDeviceParameter("/adc");
+    private final OwserverDeviceParameter outcParameter = new OwserverDeviceParameter("/outc");
+    private final OwserverDeviceParameter piocParameter = new OwserverDeviceParameter("/pioc");
+    private final OwserverDeviceParameter adccParameter = new OwserverDeviceParameter("/adcc");
+    private final OwserverDeviceParameter tpm1cParameter = new OwserverDeviceParameter("/tpm1c");
+    private final OwserverDeviceParameter tpm2cParameter = new OwserverDeviceParameter("/tpm2c");
+    private final OwserverDeviceParameter period1Parameter = new OwserverDeviceParameter("/period1");
+    private final OwserverDeviceParameter period2Parameter = new OwserverDeviceParameter("/period2");
+    private final OwserverDeviceParameter duty1Parameter = new OwserverDeviceParameter("/duty1");
+    private final OwserverDeviceParameter duty2Parameter = new OwserverDeviceParameter("/duty2");
+    private final OwserverDeviceParameter duty3Parameter = new OwserverDeviceParameter("/duty3");
+    private final OwserverDeviceParameter duty4Parameter = new OwserverDeviceParameter("/duty4");
+
+    private BitSet outcRegister = new BitSet(8);
+    private BitSet piocRegister = new BitSet(8);
+    private BitSet adccRegister = new BitSet(8);
+    private BitSet tpm1cRegister = new BitSet(8);
+    private BitSet tpm2cRegister = new BitSet(8);
+
+    private double resolution1 = 8; // in µs
+    private double resolution2 = 8; // in µs
+
+    public BAE0910(SensorId sensorId, OwBaseThingHandler callback) {
+        super(sensorId, callback);
+    }
+
+    @Override
+    public void configureChannels() {
+    }
+
+    public void configureChannels(OwserverBridgeHandler bridgeHandler) throws OwException {
+        outcRegister.clear();
+        piocRegister.clear();
+        adccRegister.clear();
+        tpm1cRegister.clear();
+        tpm2cRegister.clear();
+
+        if (enabledChannels.contains(CHANNEL_PWM_FREQ1)) {
+            Channel channel = callback.getThing().getChannel(CHANNEL_PWM_FREQ1);
+            if (channel != null) {
+                BAE091xPWMConfiguration channelConfig = channel.getConfiguration().as(BAE091xPWMConfiguration.class);
+                tpm1cRegister.set(TPMC_POL, channelConfig.reversePolarity);
+                tpm1cRegister.set(TPMC_PS2, (channelConfig.prescaler & 4) == 4);
+                tpm1cRegister.set(TPMC_PS1, (channelConfig.prescaler & 2) == 2);
+                tpm1cRegister.set(TPMC_PS0, (channelConfig.prescaler & 1) == 1);
+                resolution1 = 0.0625 * (1 << channelConfig.prescaler);
+            } else {
+                throw new OwException("trying to configure pwm but frequency channel is missing");
+            }
+        }
+
+        if (enabledChannels.contains(CHANNEL_PWM_FREQ2)) {
+            Channel channel = callback.getThing().getChannel(CHANNEL_PWM_FREQ2);
+            if (channel != null) {
+                BAE091xPWMConfiguration channelConfig = channel.getConfiguration().as(BAE091xPWMConfiguration.class);
+                tpm2cRegister.set(TPMC_POL, channelConfig.reversePolarity);
+                tpm2cRegister.set(TPMC_PS2, (channelConfig.prescaler & 4) == 4);
+                tpm2cRegister.set(TPMC_PS1, (channelConfig.prescaler & 2) == 2);
+                tpm2cRegister.set(TPMC_PS0, (channelConfig.prescaler & 1) == 1);
+                resolution2 = 0.0625 * (1 << channelConfig.prescaler);
+            } else {
+                throw new OwException("trying to configure pwm but frequency channel is missing");
+            }
+        }
+
+        // Pin 2
+        if (enabledChannels.contains(CHANNEL_DIGITAL2)) {
+            outcRegister.set(OUTC_DS);
+            outcRegister.set(OUTC_OUTEN);
+        }
+
+        // Pin 6
+        if (enabledChannels.contains(CHANNEL_DIGITAL6)) {
+            piocRegister.set(PIOC_PIOEN);
+            piocRegister.set(PIOC_DS);
+            Channel channel = callback.getThing().getChannel(CHANNEL_DIGITAL6);
+            if (channel != null) {
+                BAE091xPIOConfiguration channelConfig = channel.getConfiguration().as(BAE091xPIOConfiguration.class);
+                piocRegister.set(PIOC_DD, channelConfig.mode.equals("output"));
+                switch (channelConfig.pulldevice) {
+                    case "pullup":
+                        piocRegister.set(PIOC_PE);
+                        piocRegister.clear(PIOC_PD);
+                        break;
+                    case "pulldown":
+                        piocRegister.set(PIOC_PE);
+                        piocRegister.set(PIOC_PD);
+                        break;
+                    default:
+                }
+            } else {
+                throw new OwException("trying to configure pin 6 but channel is missing");
+            }
+        }
+
+        // Pin 7
+        if (enabledChannels.contains(CHANNEL_VOLTAGE)) {
+            adccRegister.set(ADCC_ADCEN);
+            Channel channel = callback.getThing().getChannel(CHANNEL_VOLTAGE);
+            if (channel != null) {
+                BAE091xAnalogConfiguration channelConfig = channel.getConfiguration()
+                        .as(BAE091xAnalogConfiguration.class);
+                adccRegister.set(ADCC_10BIT, channelConfig.hires);
+            } else {
+                throw new OwException("trying to configure pin 7 but channel is missing");
+            }
+        }
+
+        if (enabledChannels.contains(CHANNEL_DIGITAL7)) {
+            tpm2cRegister.set(TPMC_PWMDIS);
+        }
+
+        // Pin 8
+        if (enabledChannels.contains(CHANNEL_DIGITAL8)) {
+            tpm1cRegister.set(TPMC_PWMDIS);
+            Channel channel = callback.getThing().getChannel(CHANNEL_DIGITAL8);
+            if (channel != null) {
+                if ((new ChannelTypeUID(BINDING_ID, "bae-in")).equals(channel.getChannelTypeUID())) {
+                    tpm1cRegister.set(TPMC_INENA);
+                }
+            } else {
+                throw new OwException("trying to configure pin 8 but channel is missing");
+            }
+        }
+
+        // write configuration
+        bridgeHandler.writeBitSet(sensorId, outcParameter, outcRegister);
+        bridgeHandler.writeBitSet(sensorId, piocParameter, piocRegister);
+        bridgeHandler.writeBitSet(sensorId, adccParameter, adccRegister);
+        bridgeHandler.writeBitSet(sensorId, tpm1cParameter, tpm1cRegister);
+        bridgeHandler.writeBitSet(sensorId, tpm2cParameter, tpm2cRegister);
+
+        isConfigured = true;
+    }
+
+    @Override
+    public void refresh(OwserverBridgeHandler bridgeHandler, Boolean forcedRefresh) throws OwException {
+        if (isConfigured) {
+            logger.trace("refresh of sensor {} started", sensorId);
+            // Counter
+            if (enabledChannels.contains(CHANNEL_COUNTER)) {
+                State counterValue = bridgeHandler.readDecimalType(sensorId, pin1CounterParameter);
+                callback.postUpdate(CHANNEL_COUNTER, counterValue);
+            }
+
+            // Digital Pins
+            if (enabledChannels.contains(CHANNEL_DIGITAL2)) {
+                BitSet value = bridgeHandler.readBitSet(sensorId, pin2OutParameter);
+                callback.postUpdate(CHANNEL_DIGITAL2, OnOffType.from(value.get(0)));
+            }
+            if (enabledChannels.contains(CHANNEL_DIGITAL6)) {
+                BitSet value = bridgeHandler.readBitSet(sensorId, pin6PIOParameter);
+                callback.postUpdate(CHANNEL_DIGITAL6, OnOffType.from(value.get(0)));
+            }
+            if (enabledChannels.contains(CHANNEL_DIGITAL7)) {
+                BitSet value = bridgeHandler.readBitSet(sensorId, tpm2cParameter);
+                callback.postUpdate(CHANNEL_DIGITAL7, OnOffType.from(value.get(TPMC_POL)));
+            }
+            if (enabledChannels.contains(CHANNEL_DIGITAL8)) {
+                BitSet value = bridgeHandler.readBitSet(sensorId, tpm1cParameter);
+                callback.postUpdate(CHANNEL_DIGITAL8, OnOffType.from(value.get(TPMC_POL)));
+            }
+
+            // Analog
+            if (enabledChannels.contains(CHANNEL_VOLTAGE)) {
+                State analogValue = bridgeHandler.readDecimalType(sensorId, pin7AnalogParameter);
+                callback.postUpdate(CHANNEL_VOLTAGE,
+                        new QuantityType<>((DecimalType) analogValue, SmartHomeUnits.VOLT));
+            }
+
+            // PWM
+            int period1 = 0;
+            int period2 = 0;
+            if (enabledChannels.contains(CHANNEL_PWM_FREQ1)) {
+                period1 = ((DecimalType) bridgeHandler.readDecimalType(sensorId, period1Parameter)).intValue();
+                double frequency = (period1 > 0) ? 1 / (period1 * resolution1 * 1e-6) : 0;
+                callback.postUpdate(CHANNEL_PWM_FREQ1, new QuantityType<>(frequency, SmartHomeUnits.HERTZ));
+            }
+            if (enabledChannels.contains(CHANNEL_PWM_FREQ2)) {
+                period2 = ((DecimalType) bridgeHandler.readDecimalType(sensorId, period2Parameter)).intValue();
+                double frequency = (period2 > 0) ? 1 / (period2 * resolution2 * 1e-6) : 0;
+                callback.postUpdate(CHANNEL_PWM_FREQ2, new QuantityType<>(frequency, SmartHomeUnits.HERTZ));
+            }
+            if (enabledChannels.contains(CHANNEL_PWM_DUTY1)) {
+                int dutyValue = ((DecimalType) bridgeHandler.readDecimalType(sensorId, duty1Parameter)).intValue();
+                double duty = (period1 > 0 && dutyValue <= period1) ? 100 * dutyValue / period1 : 100;
+                callback.postUpdate(CHANNEL_PWM_DUTY1, new QuantityType<>(duty, SmartHomeUnits.PERCENT));
+            }
+            if (enabledChannels.contains(CHANNEL_PWM_DUTY2)) {
+                int dutyValue = ((DecimalType) bridgeHandler.readDecimalType(sensorId, duty2Parameter)).intValue();
+                double duty = (period2 > 0 && dutyValue <= period2) ? 100 * dutyValue / period2 : 100;
+                callback.postUpdate(CHANNEL_PWM_DUTY2, new QuantityType<>(duty, SmartHomeUnits.PERCENT));
+            }
+            if (enabledChannels.contains(CHANNEL_PWM_DUTY3)) {
+                int dutyValue = ((DecimalType) bridgeHandler.readDecimalType(sensorId, duty3Parameter)).intValue();
+                double duty = (period1 > 0 && dutyValue <= period1) ? 100 * dutyValue / period1 : 100;
+                callback.postUpdate(CHANNEL_PWM_DUTY3, new QuantityType<>(duty, SmartHomeUnits.PERCENT));
+            }
+            if (enabledChannels.contains(CHANNEL_PWM_DUTY4)) {
+                int dutyValue = ((DecimalType) bridgeHandler.readDecimalType(sensorId, duty4Parameter)).intValue();
+                double duty = (period2 > 0 && dutyValue <= period2) ? 100 * dutyValue / period2 : 100;
+                callback.postUpdate(CHANNEL_PWM_DUTY4, new QuantityType<>(duty, SmartHomeUnits.PERCENT));
+            }
+        }
+    }
+
+    public boolean writeChannel(OwserverBridgeHandler bridgeHandler, String channelId, Command command) {
+        try {
+            BitSet value = new BitSet(8);
+            switch (channelId) {
+                case CHANNEL_DIGITAL2:
+                    // output
+                    if (!outcRegister.get(OUTC_OUTEN)) {
+                        return false;
+                    }
+                    value.set(0, ((OnOffType) command).equals(OnOffType.ON));
+                    bridgeHandler.writeBitSet(sensorId, pin2OutParameter, value);
+                    break;
+                case CHANNEL_DIGITAL6:
+                    // not input, pio
+                    if (!piocRegister.get(PIOC_DD) || !piocRegister.get(PIOC_PIOEN)) {
+                        return false;
+                    }
+                    value.set(0, ((OnOffType) command).equals(OnOffType.ON));
+                    bridgeHandler.writeBitSet(sensorId, pin6PIOParameter, value);
+                    break;
+                case CHANNEL_DIGITAL7:
+                    // not pwm, not analog
+                    if (!tpm2cRegister.get(TPMC_PWMDIS) || adccRegister.get(ADCC_ADCEN)) {
+                        return false;
+                    }
+                    tpm2cRegister.set(TPMC_POL, ((OnOffType) command).equals(OnOffType.ON));
+                    bridgeHandler.writeBitSet(sensorId, tpm2cParameter, tpm2cRegister);
+                    break;
+                case CHANNEL_DIGITAL8:
+                    // not input, not pwm
+                    if (tpm1cRegister.get(TPMC_INENA) || !tpm1cRegister.get(TPMC_PWMDIS)) {
+                        return false;
+                    }
+                    tpm1cRegister.set(TPMC_POL, ((OnOffType) command).equals(OnOffType.ON));
+                    bridgeHandler.writeBitSet(sensorId, tpm1cParameter, tpm1cRegister);
+                    break;
+                case CHANNEL_PWM_FREQ1:
+                    if (command instanceof QuantityType<?>) {
+                        bridgeHandler.writeDecimalType(sensorId, period1Parameter,
+                                convertFrequencyToPeriod(command, resolution1));
+                    }
+                    break;
+                case CHANNEL_PWM_FREQ2:
+                    if (command instanceof QuantityType<?>) {
+                        bridgeHandler.writeDecimalType(sensorId, period2Parameter,
+                                convertFrequencyToPeriod(command, resolution2));
+                    }
+                    break;
+                case CHANNEL_PWM_DUTY1:
+                    if (command instanceof QuantityType<?>) {
+                        bridgeHandler.writeDecimalType(sensorId, duty1Parameter, calculateDutyCycle(command,
+                                (DecimalType) bridgeHandler.readDecimalType(sensorId, period1Parameter)));
+                    }
+                    break;
+                case CHANNEL_PWM_DUTY2:
+                    if (command instanceof QuantityType<?>) {
+                        bridgeHandler.writeDecimalType(sensorId, duty2Parameter, calculateDutyCycle(command,
+                                (DecimalType) bridgeHandler.readDecimalType(sensorId, period2Parameter)));
+                    }
+                    break;
+                case CHANNEL_PWM_DUTY3:
+                    if (command instanceof QuantityType<?>) {
+                        bridgeHandler.writeDecimalType(sensorId, duty3Parameter, calculateDutyCycle(command,
+                                (DecimalType) bridgeHandler.readDecimalType(sensorId, period1Parameter)));
+                    }
+                    break;
+                case CHANNEL_PWM_DUTY4:
+                    if (command instanceof QuantityType<?>) {
+                        bridgeHandler.writeDecimalType(sensorId, duty4Parameter, calculateDutyCycle(command,
+                                (DecimalType) bridgeHandler.readDecimalType(sensorId, period2Parameter)));
+                    }
+                    break;
+                default:
+                    throw new OwException("unknown or invalid channel");
+            }
+            return true;
+        } catch (
+
+        OwException e) {
+            logger.info("could not write {} to {}: {}", command, channelId, e.getMessage());
+            return false;
+        }
+    }
+
+    public static OwSensorType getDeviceSubType(OwserverBridgeHandler bridgeHandler, SensorId sensorId)
+            throws OwException {
+        OwserverDeviceParameter deviceTypeParameter = new OwserverDeviceParameter("/device_type");
+
+        String subDeviceType = bridgeHandler.readString(sensorId, deviceTypeParameter);
+        switch (subDeviceType) {
+            case "2":
+                return OwSensorType.BAE0910;
+            case "3":
+                return OwSensorType.BAE0911;
+            default:
+                return OwSensorType.UNKNOWN;
+        }
+    }
+
+    private DecimalType convertFrequencyToPeriod(Command command, double resolution) throws OwException {
+        @SuppressWarnings("unchecked")
+        QuantityType<Frequency> fHz = ((QuantityType<Frequency>) command).toUnit(SmartHomeUnits.HERTZ);
+        if (fHz == null) {
+            throw new OwException("could not convert command to frequency");
+        }
+        double f = fHz.doubleValue();
+        int period = 0;
+        if (f > 0) {
+            period = (int) Math.min(Math.round(1 / (f * resolution * 1e-6)), 65535);
+        }
+        return new DecimalType(period);
+    }
+
+    private DecimalType calculateDutyCycle(Command command, DecimalType period) throws OwException {
+        @SuppressWarnings("unchecked")
+        double dutyCycle = ((QuantityType<Dimensionless>) command).doubleValue();
+        int dutyValue = 0;
+        if (dutyCycle > 0 && dutyCycle <= 100) {
+            dutyValue = (int) Math.round(dutyCycle / 100.0 * period.intValue());
+        } else if (dutyCycle > 100) {
+            dutyValue = 65535;
+        }
+        return new DecimalType(dutyValue);
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/device/DS18x20.java

@@ -0,0 +1,90 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.device;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import javax.measure.quantity.Temperature;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+import org.openhab.binding.onewire.internal.owserver.OwserverDeviceParameter;
+import org.openhab.core.config.core.Configuration;
+import org.openhab.core.library.types.DecimalType;
+import org.openhab.core.library.types.QuantityType;
+import org.openhab.core.library.unit.SIUnits;
+import org.openhab.core.thing.Channel;
+import org.openhab.core.thing.Thing;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link DS18x20} class defines an DS18x20 or DS1822 device
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class DS18x20 extends AbstractOwDevice {
+    private final Logger logger = LoggerFactory.getLogger(DS18x20.class);
+
+    private OwserverDeviceParameter temperatureParameter = new OwserverDeviceParameter("/temperature");
+
+    private boolean ignorePOR = false;
+
+    public DS18x20(SensorId sensorId, OwBaseThingHandler callback) {
+        super(sensorId, callback);
+    }
+
+    @Override
+    public void configureChannels() throws OwException {
+        Thing thing = callback.getThing();
+        Channel temperatureChannel = thing.getChannel(CHANNEL_TEMPERATURE);
+
+        if (temperatureChannel != null) {
+            Configuration channelConfiguration = temperatureChannel.getConfiguration();
+            if (channelConfiguration.containsKey(CONFIG_RESOLUTION)) {
+                temperatureParameter = new OwserverDeviceParameter(
+                        "/temperature" + (String) channelConfiguration.get(CONFIG_RESOLUTION));
+            } else {
+                temperatureParameter = new OwserverDeviceParameter("/temperature");
+            }
+            if (channelConfiguration.containsKey(CONFIG_IGNORE_POR)) {
+                ignorePOR = (Boolean) channelConfiguration.get(CONFIG_IGNORE_POR);
+            } else {
+                ignorePOR = false;
+            }
+        } else {
+            throw new OwException(CHANNEL_TEMPERATURE + " not found");
+        }
+
+        isConfigured = true;
+    }
+
+    @Override
+    public void refresh(OwserverBridgeHandler bridgeHandler, Boolean forcedRefresh) throws OwException {
+        if (isConfigured && enabledChannels.contains(CHANNEL_TEMPERATURE)) {
+            logger.trace("refresh of sensor {} started", sensorId);
+            QuantityType<Temperature> temperature = new QuantityType<>(
+                    (DecimalType) bridgeHandler.readDecimalType(sensorId, temperatureParameter), SIUnits.CELSIUS);
+            logger.trace("read temperature {} from {}", temperature, sensorId);
+            if (ignorePOR && (Double.compare(temperature.doubleValue(), 85.0) == 0)) {
+                logger.trace("ignored POR value from sensor {}", sensorId);
+            } else {
+                callback.postUpdate(CHANNEL_TEMPERATURE, temperature);
+            }
+        }
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/device/DS1923.java

@@ -0,0 +1,88 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.device;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import javax.measure.quantity.Dimensionless;
+import javax.measure.quantity.Temperature;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.Util;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+import org.openhab.binding.onewire.internal.owserver.OwserverDeviceParameter;
+import org.openhab.core.library.types.DecimalType;
+import org.openhab.core.library.types.QuantityType;
+import org.openhab.core.library.unit.SIUnits;
+import org.openhab.core.library.unit.SmartHomeUnits;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link DS1923} class defines an DS1923 device
+ *
+ * @author Jan N. Klug - Initial contribution
+ * @author Michał Wójcik - Adapted to DS1923
+ */
+@NonNullByDefault
+public class DS1923 extends AbstractOwDevice {
+    private final Logger logger = LoggerFactory.getLogger(DS1923.class);
+    private final OwserverDeviceParameter temperatureParameter = new OwserverDeviceParameter("/temperature");
+    private final OwserverDeviceParameter humidityParameter = new OwserverDeviceParameter("/humidity");
+
+    public DS1923(SensorId sensorId, OwBaseThingHandler callback) {
+        super(sensorId, callback);
+    }
+
+    @Override
+    public void configureChannels() throws OwException {
+        isConfigured = true;
+    }
+
+    @Override
+    public void refresh(OwserverBridgeHandler bridgeHandler, Boolean forcedRefresh) throws OwException {
+        if (isConfigured) {
+            logger.trace("refresh of sensor {} started", sensorId);
+            if (enabledChannels.contains(CHANNEL_TEMPERATURE) || enabledChannels.contains(CHANNEL_HUMIDITY)
+                    || enabledChannels.contains(CHANNEL_ABSOLUTE_HUMIDITY)
+                    || enabledChannels.contains(CHANNEL_DEWPOINT)) {
+                QuantityType<Temperature> temperature = new QuantityType<>(
+                        (DecimalType) bridgeHandler.readDecimalType(sensorId, temperatureParameter), SIUnits.CELSIUS);
+                callback.postUpdate(CHANNEL_TEMPERATURE, temperature);
+
+                if (enabledChannels.contains(CHANNEL_HUMIDITY) || enabledChannels.contains(CHANNEL_ABSOLUTE_HUMIDITY)
+                        || enabledChannels.contains(CHANNEL_DEWPOINT)) {
+                    QuantityType<Dimensionless> humidity = new QuantityType<>(
+                            (DecimalType) bridgeHandler.readDecimalType(sensorId, humidityParameter),
+                            SmartHomeUnits.PERCENT);
+
+                    if (enabledChannels.contains(CHANNEL_HUMIDITY)) {
+                        callback.postUpdate(CHANNEL_HUMIDITY, humidity);
+                    }
+
+                    if (enabledChannels.contains(CHANNEL_ABSOLUTE_HUMIDITY)) {
+                        callback.postUpdate(CHANNEL_ABSOLUTE_HUMIDITY,
+                                Util.calculateAbsoluteHumidity(temperature, humidity));
+                    }
+
+                    if (enabledChannels.contains(CHANNEL_DEWPOINT)) {
+                        callback.postUpdate(CHANNEL_DEWPOINT, Util.calculateDewpoint(temperature, humidity));
+                    }
+                }
+            }
+        }
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/device/DS2401.java

@@ -0,0 +1,40 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.device;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+
+/**
+ * The {@link DS2401} class defines an DS2401 (iButton) device
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class DS2401 extends AbstractOwDevice {
+    public DS2401(SensorId sensorId, OwBaseThingHandler callback) {
+        super(sensorId, callback);
+        isConfigured = true;
+    }
+
+    @Override
+    public void configureChannels() throws OwException {
+    }
+
+    @Override
+    public void refresh(OwserverBridgeHandler bridgeHandler, Boolean forcedRefresh) throws OwException {
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/device/DS2405.java

@@ -0,0 +1,45 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.device;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.DigitalIoConfig;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.internal.owserver.OwserverDeviceParameter;
+
+/**
+ * The {@link DS2405} class defines an DS2405 device
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class DS2405 extends AbstractDigitalOwDevice {
+    public DS2405(SensorId sensorId, OwBaseThingHandler callback) {
+        super(sensorId, callback);
+    }
+
+    @Override
+    public void configureChannels() throws OwException {
+        OwserverDeviceParameter inParam = new OwserverDeviceParameter("uncached/", "/sensed");
+        OwserverDeviceParameter outParam = new OwserverDeviceParameter("/PIO");
+
+        ioConfig.add(new DigitalIoConfig(callback.getThing(), 0, inParam, outParam));
+
+        fullInParam = inParam;
+        fullOutParam = outParam;
+
+        super.configureChannels();
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/device/DS2406_DS2413.java

@@ -0,0 +1,46 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.device;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.DigitalIoConfig;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.internal.owserver.OwserverDeviceParameter;
+
+/**
+ * The {@link DS2406_DS2413} class defines an DS2406 or DS2413 device
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class DS2406_DS2413 extends AbstractDigitalOwDevice {
+    public DS2406_DS2413(SensorId sensorId, OwBaseThingHandler callback) {
+        super(sensorId, callback);
+    }
+
+    @Override
+    public void configureChannels() throws OwException {
+        ioConfig.clear();
+        ioConfig.add(new DigitalIoConfig(callback.getThing(), 0, new OwserverDeviceParameter("uncached/", "/sensed.A"),
+                new OwserverDeviceParameter("/PIO.A")));
+        ioConfig.add(new DigitalIoConfig(callback.getThing(), 1, new OwserverDeviceParameter("uncached/", "/sensed.B"),
+                new OwserverDeviceParameter("/PIO.B")));
+
+        fullInParam = new OwserverDeviceParameter("uncached/", "/sensed.BYTE");
+        fullOutParam = new OwserverDeviceParameter("/PIO.BYTE");
+
+        super.configureChannels();
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/device/DS2408.java

@@ -0,0 +1,48 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.device;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.DigitalIoConfig;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.internal.owserver.OwserverDeviceParameter;
+
+/**
+ * The {@link DS2408} class defines an DS2408 device
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class DS2408 extends AbstractDigitalOwDevice {
+    public DS2408(SensorId sensorId, OwBaseThingHandler callback) {
+        super(sensorId, callback);
+    }
+
+    @Override
+    public void configureChannels() throws OwException {
+        ioConfig.clear();
+
+        for (int i = 0; i < 8; i++) {
+            ioConfig.add(new DigitalIoConfig(callback.getThing(), i,
+                    new OwserverDeviceParameter("uncached/", String.format("/sensed.%d", i)),
+                    new OwserverDeviceParameter(String.format("/PIO.%d", i))));
+        }
+
+        fullInParam = new OwserverDeviceParameter("uncached/", "/sensed.BYTE");
+        fullOutParam = new OwserverDeviceParameter("/PIO.BYTE");
+
+        super.configureChannels();
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/device/DS2423.java

@@ -0,0 +1,62 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.device;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.CHANNEL_COUNTER;
+
+import java.util.List;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+import org.openhab.binding.onewire.internal.owserver.OwserverDeviceParameter;
+import org.openhab.core.types.State;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link DS2423} class defines an DS2423 device
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class DS2423 extends AbstractOwDevice {
+    private final Logger logger = LoggerFactory.getLogger(DS2423.class);
+    private final OwserverDeviceParameter counterParameter = new OwserverDeviceParameter("/counters.ALL");
+
+    public DS2423(SensorId sensorId, OwBaseThingHandler callback) {
+        super(sensorId, callback);
+    }
+
+    @Override
+    public void configureChannels() throws OwException {
+        isConfigured = true;
+    }
+
+    @Override
+    public void refresh(OwserverBridgeHandler bridgeHandler, Boolean forcedRefresh) throws OwException {
+        if (isConfigured) {
+            logger.trace("refresh of sensor {} started", sensorId);
+            List<State> states = bridgeHandler.readDecimalTypeArray(sensorId, counterParameter);
+
+            if (states.size() != 2) {
+                throw new OwException("Expected exactly two values, got " + String.valueOf(states.size()));
+            } else {
+                callback.postUpdate(CHANNEL_COUNTER + "0", states.get(0));
+                callback.postUpdate(CHANNEL_COUNTER + "1", states.get(1));
+            }
+        }
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/device/DS2438.java

@@ -0,0 +1,222 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.device;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+import static org.openhab.core.library.unit.MetricPrefix.MILLI;
+
+import javax.measure.quantity.Dimensionless;
+import javax.measure.quantity.Temperature;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.Util;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+import org.openhab.binding.onewire.internal.owserver.OwserverDeviceParameter;
+import org.openhab.core.config.core.Configuration;
+import org.openhab.core.library.types.DecimalType;
+import org.openhab.core.library.types.QuantityType;
+import org.openhab.core.library.unit.SIUnits;
+import org.openhab.core.library.unit.SmartHomeUnits;
+import org.openhab.core.thing.Channel;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.types.State;
+import org.openhab.core.types.UnDefType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link DS2438} class defines an DS2438 device
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class DS2438 extends AbstractOwDevice {
+    private final Logger logger = LoggerFactory.getLogger(DS2438.class);
+
+    public enum LightSensorType {
+        ELABNET_V1,
+        ELABNET_V2,
+        IBUTTONLINK
+    }
+
+    public enum CurrentSensorType {
+        INTERNAL,
+        IBUTTONLINK
+    }
+
+    private LightSensorType lightSensorType = LightSensorType.ELABNET_V1;
+    private CurrentSensorType currentSensorType = CurrentSensorType.INTERNAL;
+
+    private final OwserverDeviceParameter temperatureParameter = new OwserverDeviceParameter("/temperature");
+    private OwserverDeviceParameter humidityParameter = new OwserverDeviceParameter("/humidity");
+    private final OwserverDeviceParameter voltageParameter = new OwserverDeviceParameter("/VAD");
+    private final OwserverDeviceParameter currentParamater = new OwserverDeviceParameter("/vis");
+    private final OwserverDeviceParameter supplyVoltageParameter = new OwserverDeviceParameter("/VDD");
+
+    public DS2438(SensorId sensorId, OwBaseThingHandler callback) {
+        super(sensorId, callback);
+    }
+
+    @Override
+    public void configureChannels() {
+        Thing thing = callback.getThing();
+
+        Channel humidityChannel = thing.getChannel(CHANNEL_HUMIDITY);
+        if (humidityChannel != null) {
+            Configuration channelConfiguration = humidityChannel.getConfiguration();
+            if (channelConfiguration.get(CONFIG_HUMIDITY) != null) {
+                humidityParameter = new OwserverDeviceParameter((String) channelConfiguration.get(CONFIG_HUMIDITY));
+            } else {
+                humidityParameter = new OwserverDeviceParameter("/humidity");
+            }
+        }
+
+        isConfigured = true;
+    }
+
+    @Override
+    public void refresh(OwserverBridgeHandler bridgeHandler, Boolean forcedRefresh) throws OwException {
+        if (isConfigured) {
+            logger.trace("refresh of sensor {} started", sensorId);
+            double Vcc = 5.0;
+
+            if (enabledChannels.contains(CHANNEL_TEMPERATURE) || enabledChannels.contains(CHANNEL_HUMIDITY)
+                    || enabledChannels.contains(CHANNEL_ABSOLUTE_HUMIDITY)
+                    || enabledChannels.contains(CHANNEL_DEWPOINT)) {
+                QuantityType<Temperature> temperature = new QuantityType<>(
+                        (DecimalType) bridgeHandler.readDecimalType(sensorId, temperatureParameter), SIUnits.CELSIUS);
+                logger.trace("read temperature {} from {}", temperature, sensorId);
+
+                if (enabledChannels.contains(CHANNEL_TEMPERATURE)) {
+                    callback.postUpdate(CHANNEL_TEMPERATURE, temperature);
+                }
+
+                if (enabledChannels.contains(CHANNEL_HUMIDITY) || enabledChannels.contains(CHANNEL_ABSOLUTE_HUMIDITY)
+                        || enabledChannels.contains(CHANNEL_DEWPOINT)) {
+                    QuantityType<Dimensionless> humidity = new QuantityType<>(
+                            (DecimalType) bridgeHandler.readDecimalType(sensorId, humidityParameter),
+                            SmartHomeUnits.PERCENT);
+                    logger.trace("read humidity {} from {}", humidity, sensorId);
+
+                    if (enabledChannels.contains(CHANNEL_HUMIDITY)) {
+                        callback.postUpdate(CHANNEL_HUMIDITY, humidity);
+                    }
+
+                    if (enabledChannels.contains(CHANNEL_ABSOLUTE_HUMIDITY)) {
+                        callback.postUpdate(CHANNEL_ABSOLUTE_HUMIDITY,
+                                Util.calculateAbsoluteHumidity(temperature, humidity));
+                    }
+
+                    if (enabledChannels.contains(CHANNEL_DEWPOINT)) {
+                        callback.postUpdate(CHANNEL_DEWPOINT, Util.calculateDewpoint(temperature, humidity));
+                    }
+                }
+            }
+
+            if (enabledChannels.contains(CHANNEL_VOLTAGE)) {
+                double measured = ((DecimalType) bridgeHandler.readDecimalType(sensorId, voltageParameter))
+                        .doubleValue();
+                if (measured < 0 || measured > 10.0) {
+                    // workaround bug in DS2438
+                    measured = 0.0;
+                }
+                State voltage = new QuantityType<>(measured, SmartHomeUnits.VOLT);
+
+                logger.trace("read voltage {} from {}", voltage, sensorId);
+                callback.postUpdate(CHANNEL_VOLTAGE, voltage);
+            }
+
+            if (enabledChannels.contains(CHANNEL_CURRENT)) {
+                if (currentSensorType == CurrentSensorType.IBUTTONLINK) {
+                    State current = bridgeHandler.readDecimalType(sensorId, voltageParameter);
+                    if (current instanceof DecimalType) {
+                        double currentDouble = ((DecimalType) current).doubleValue();
+                        if (currentDouble >= 0.1 || currentDouble <= 3.78) {
+                            current = new QuantityType<>(currentDouble * 5.163 + 0.483, SmartHomeUnits.AMPERE);
+                        }
+                        callback.postUpdate(CHANNEL_CURRENT, current);
+                    } else {
+                        callback.postUpdate(CHANNEL_CURRENT, UnDefType.UNDEF);
+                    }
+                } else {
+                    State current = new QuantityType<>(
+                            (DecimalType) bridgeHandler.readDecimalType(sensorId, currentParamater),
+                            MILLI(SmartHomeUnits.AMPERE));
+                    callback.postUpdate(CHANNEL_CURRENT, current);
+                }
+            }
+
+            if (enabledChannels.contains(CHANNEL_SUPPLYVOLTAGE)) {
+                Vcc = ((DecimalType) bridgeHandler.readDecimalType(sensorId, supplyVoltageParameter)).doubleValue();
+                State supplyVoltage = new QuantityType<>(Vcc, SmartHomeUnits.VOLT);
+                callback.postUpdate(CHANNEL_SUPPLYVOLTAGE, supplyVoltage);
+            }
+
+            if (enabledChannels.contains(CHANNEL_LIGHT)) {
+                switch (lightSensorType) {
+                    case ELABNET_V2:
+                        State light = bridgeHandler.readDecimalType(sensorId, currentParamater);
+                        if (light instanceof DecimalType) {
+                            light = new QuantityType<>(
+                                    Math.round(Math.pow(10, ((DecimalType) light).doubleValue() / 47 * 1000)),
+                                    SmartHomeUnits.LUX);
+                            callback.postUpdate(CHANNEL_LIGHT, light);
+                        }
+                        break;
+                    case ELABNET_V1:
+                        light = bridgeHandler.readDecimalType(sensorId, currentParamater);
+                        if (light instanceof DecimalType) {
+                            light = new QuantityType<>(Math.round(Math
+                                    .exp(1.059 * Math.log(1000000 * ((DecimalType) light).doubleValue() / (4096 * 390))
+                                            + 4.518)
+                                    * 20000), SmartHomeUnits.LUX);
+                            callback.postUpdate(CHANNEL_LIGHT, light);
+                        }
+                        break;
+                    case IBUTTONLINK:
+                        double measured = ((DecimalType) bridgeHandler.readDecimalType(sensorId, voltageParameter))
+                                .doubleValue();
+                        if (measured <= 0 || measured > 10.0) {
+                            // workaround bug in DS2438
+                            light = new QuantityType<>(0, SmartHomeUnits.LUX);
+                        } else {
+                            light = new QuantityType<>(Math.pow(10, (65 / 7.5) - (47 / 7.5) * (Vcc / measured)),
+                                    SmartHomeUnits.LUX);
+                        }
+                        callback.postUpdate(CHANNEL_LIGHT, light);
+                }
+            }
+        }
+    }
+
+    /**
+     * set the type of the attached light sensor
+     *
+     * @param lightSensorType
+     */
+    public void setLightSensorType(LightSensorType lightSensorType) {
+        this.lightSensorType = lightSensorType;
+    }
+
+    /**
+     * set the type of the attached current sensor
+     *
+     * @param currentSensorType
+     */
+    public void setCurrentSensorType(CurrentSensorType currentSensorType) {
+        this.currentSensorType = currentSensorType;
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/device/EDS006x.java

@@ -0,0 +1,114 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.device;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import javax.measure.quantity.Dimensionless;
+import javax.measure.quantity.Illuminance;
+import javax.measure.quantity.Pressure;
+import javax.measure.quantity.Temperature;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.Util;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+import org.openhab.binding.onewire.internal.owserver.OwserverDeviceParameter;
+import org.openhab.core.library.types.DecimalType;
+import org.openhab.core.library.types.QuantityType;
+import org.openhab.core.library.unit.MetricPrefix;
+import org.openhab.core.library.unit.SIUnits;
+import org.openhab.core.library.unit.SmartHomeUnits;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link EDS006x} class defines an EDS006x device
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class EDS006x extends AbstractOwDevice {
+    private final Logger logger = LoggerFactory.getLogger(EDS006x.class);
+    private OwserverDeviceParameter temperatureParameter = new OwserverDeviceParameter("/temperature");
+    private OwserverDeviceParameter humidityParameter = new OwserverDeviceParameter("/humidity");
+    private OwserverDeviceParameter pressureParameter = new OwserverDeviceParameter("/pressure");
+    private OwserverDeviceParameter lightParameter = new OwserverDeviceParameter("/light");
+
+    public EDS006x(SensorId sensorId, OwSensorType sensorType, OwBaseThingHandler callback) {
+        super(sensorId, callback);
+
+        String sensorTypeName = sensorType.name();
+        temperatureParameter = new OwserverDeviceParameter("/" + sensorTypeName + "/temperature");
+        humidityParameter = new OwserverDeviceParameter("/" + sensorTypeName + "/humidity");
+        pressureParameter = new OwserverDeviceParameter("/" + sensorTypeName + "/pressure");
+        lightParameter = new OwserverDeviceParameter("/" + sensorTypeName + "/light");
+    }
+
+    @Override
+    public void configureChannels() {
+        isConfigured = true;
+    }
+
+    @Override
+    public void refresh(OwserverBridgeHandler bridgeHandler, Boolean forcedRefresh) throws OwException {
+        if (isConfigured) {
+            logger.trace("refresh of sensor {} started", sensorId);
+            if (enabledChannels.contains(CHANNEL_TEMPERATURE) || enabledChannels.contains(CHANNEL_HUMIDITY)
+                    || enabledChannels.contains(CHANNEL_ABSOLUTE_HUMIDITY)
+                    || enabledChannels.contains(CHANNEL_DEWPOINT)) {
+                QuantityType<Temperature> temperature = new QuantityType<>(
+                        (DecimalType) bridgeHandler.readDecimalType(sensorId, temperatureParameter), SIUnits.CELSIUS);
+
+                if (enabledChannels.contains(CHANNEL_TEMPERATURE)) {
+                    callback.postUpdate(CHANNEL_TEMPERATURE, temperature);
+                }
+
+                if (enabledChannels.contains(CHANNEL_HUMIDITY) || enabledChannels.contains(CHANNEL_ABSOLUTE_HUMIDITY)
+                        || enabledChannels.contains(CHANNEL_DEWPOINT)) {
+                    QuantityType<Dimensionless> humidity = new QuantityType<>(
+                            (DecimalType) bridgeHandler.readDecimalType(sensorId, humidityParameter),
+                            SmartHomeUnits.PERCENT);
+
+                    if (enabledChannels.contains(CHANNEL_HUMIDITY)) {
+                        callback.postUpdate(CHANNEL_HUMIDITY, humidity);
+                    }
+
+                    if (enabledChannels.contains(CHANNEL_ABSOLUTE_HUMIDITY)) {
+                        callback.postUpdate(CHANNEL_ABSOLUTE_HUMIDITY,
+                                Util.calculateAbsoluteHumidity(temperature, humidity));
+                    }
+
+                    if (enabledChannels.contains(CHANNEL_DEWPOINT)) {
+                        callback.postUpdate(CHANNEL_DEWPOINT, Util.calculateDewpoint(temperature, humidity));
+                    }
+                }
+            }
+
+            if (enabledChannels.contains(CHANNEL_LIGHT)) {
+                QuantityType<Illuminance> light = new QuantityType<>(
+                        (DecimalType) bridgeHandler.readDecimalType(sensorId, lightParameter), SmartHomeUnits.LUX);
+                callback.postUpdate(CHANNEL_LIGHT, light);
+            }
+
+            if (enabledChannels.contains(CHANNEL_PRESSURE)) {
+                QuantityType<Pressure> pressure = new QuantityType<>(
+                        (DecimalType) bridgeHandler.readDecimalType(sensorId, pressureParameter),
+                        MetricPrefix.HECTO(SIUnits.PASCAL));
+                callback.postUpdate(CHANNEL_PRESSURE, pressure);
+            }
+        }
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/device/OwChannelConfig.java

@@ -0,0 +1,66 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.device;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.BINDING_ID;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.openhab.core.thing.type.ChannelTypeUID;
+
+/**
+ * The {@link OwChannelConfig} class defines a map entry
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class OwChannelConfig {
+    private static final Pattern CONFIG_PATTERN = Pattern.compile("^(.+):(.+):(.*)$");
+
+    public String channelId;
+    public ChannelTypeUID channelTypeUID;
+    public @Nullable String label;
+
+    public OwChannelConfig(String channelId, ChannelTypeUID channelTypeUID, @Nullable String label) {
+        this.channelId = channelId;
+        this.channelTypeUID = channelTypeUID;
+        this.label = label;
+    }
+
+    public OwChannelConfig(String channelId, ChannelTypeUID channelTypeUID) {
+        this(channelId, channelTypeUID, null);
+    }
+
+    public static OwChannelConfig fromString(String configString) {
+        Matcher matcher = CONFIG_PATTERN.matcher(configString);
+        if (matcher.matches()) {
+            if (matcher.group(3).trim().isEmpty()) {
+                return new OwChannelConfig(matcher.group(1).trim(),
+                        new ChannelTypeUID(BINDING_ID, matcher.group(2).trim()));
+            } else {
+                return new OwChannelConfig(matcher.group(1).trim(),
+                        new ChannelTypeUID(BINDING_ID, matcher.group(2).trim()), matcher.group(3).trim());
+            }
+        } else {
+            throw new IllegalArgumentException();
+        }
+    }
+
+    @Override
+    public String toString() {
+        return channelId + "/" + channelTypeUID.getAsString() + "/" + label;
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/device/OwSensorType.java

@@ -0,0 +1,55 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.device;
+
+/**
+ * The {@link OwSensorType} defines all known sensor types
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+
+public enum OwSensorType {
+    DS1420,
+    DS18S20,
+    DS18B20,
+    DS1822,
+    DS1923,
+    DS2401,
+    DS2405,
+    DS2406,
+    DS2408,
+    DS2409,
+    DS2413,
+    DS2423,
+    DS2431,
+    DS2438,
+    MS_TC,
+    MS_TH,
+    MS_TL,
+    MS_TH_S,
+    MS_TV,
+    AMS,
+    AMS_S,
+    BAE,
+    BAE0910,
+    BAE0911,
+    BMS,
+    BMS_S,
+    EDS,
+    EDS0064,
+    EDS0065,
+    EDS0066,
+    EDS0067,
+    EDS0068,
+    UNKNOWN
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/discovery/OwDiscoveryItem.java

@@ -0,0 +1,167 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.discovery;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.DS2438Configuration;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.OwPageBuffer;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.device.OwSensorType;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+import org.openhab.core.thing.ThingTypeUID;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link OwDiscoveryItem} class defines a discovery item for OneWire devices
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class OwDiscoveryItem {
+    private final Logger logger = LoggerFactory.getLogger(OwDiscoveryItem.class);
+
+    private final SensorId sensorId;
+    private OwSensorType sensorType = OwSensorType.UNKNOWN;
+    private String vendor = "Dallas/Maxim";
+
+    private OwPageBuffer pages = new OwPageBuffer();
+
+    private ThingTypeUID thingTypeUID = new ThingTypeUID(BINDING_ID, "");
+
+    private final Map<SensorId, OwSensorType> associatedSensors = new HashMap<>();
+
+    public OwDiscoveryItem(OwserverBridgeHandler bridgeHandler, SensorId sensorId) throws OwException {
+        this.sensorId = sensorId;
+        sensorType = bridgeHandler.getType(sensorId);
+        switch (sensorType) {
+            case DS2438:
+                pages = bridgeHandler.readPages(sensorId);
+                DS2438Configuration config = new DS2438Configuration(bridgeHandler, sensorId);
+                associatedSensors.putAll(config.getAssociatedSensors());
+                logger.trace("found associated sensors: {}", associatedSensors);
+                vendor = config.getVendor();
+                sensorType = config.getSensorSubType();
+                break;
+            case EDS:
+                vendor = "Embedded Data Systems";
+                pages = bridgeHandler.readPages(sensorId);
+
+                try { // determine subsensorType
+                    sensorType = OwSensorType.valueOf(new String(pages.getPage(0), 0, 7, StandardCharsets.US_ASCII));
+                } catch (IllegalArgumentException e) {
+                    sensorType = OwSensorType.UNKNOWN;
+                }
+                break;
+            default:
+        }
+    }
+
+    /**
+     * get sensor type
+     *
+     * @return sensor type
+     */
+    public OwSensorType getSensorType() {
+        return sensorType;
+    }
+
+    /**
+     * get this sensor id
+     *
+     * @return sensor id
+     */
+    public SensorId getSensorId() {
+        return sensorId;
+    }
+
+    /**
+     * normalized sensor id (for naming the discovery result)
+     *
+     * @return sensor id in format familyId_xxxxxxxxxx
+     */
+    public String getNormalizedSensorId() {
+        return sensorId.getId().replace(".", "_");
+    }
+
+    /**
+     * get vendor name (if available)
+     *
+     * @return vendor name
+     */
+    public String getVendor() {
+        return vendor;
+    }
+
+    /**
+     * get this sensors ThingTypeUID
+     *
+     * @return ThingTypeUID if mapping successful
+     */
+    public ThingTypeUID getThingTypeUID() throws OwException {
+        if (THING_TYPE_MAP.containsKey(sensorType)) {
+            thingTypeUID = THING_TYPE_MAP.get(sensorType);
+            return thingTypeUID;
+        } else {
+            throw new OwException(sensorType + " cannot be mapped to thing type");
+        }
+    }
+
+    /**
+     * get a list of all sensors associated to this sensor
+     *
+     * @return list of strings
+     */
+    public List<SensorId> getAssociatedSensorIds() {
+        return new ArrayList<>(associatedSensors.keySet());
+    }
+
+    /**
+     * determine this sensors type
+     */
+    public void checkSensorType() {
+        logger.debug("checkSensorType: {} with {}", this, associatedSensors);
+
+        switch (sensorType) {
+            case MS_TH:
+            case MS_TH_S:
+                sensorType = DS2438Configuration.getMultisensorType(sensorType,
+                        new ArrayList<>(associatedSensors.values()));
+                break;
+            default:
+        }
+    }
+
+    /**
+     * get Label "<thingtype> (<id>)"
+     *
+     * @return the thing label
+     */
+    public String getLabel() {
+        return THING_LABEL_MAP.get(sensorType) + " (" + this.sensorId.getId() + ")";
+    }
+
+    @Override
+    public String toString() {
+        return String.format("%s/%s (associated: %d)", sensorId, sensorType, associatedSensors.size());
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/discovery/OwDiscoveryService.java

@@ -0,0 +1,137 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.discovery;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.util.Date;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.device.OwSensorType;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+import org.openhab.core.config.discovery.AbstractDiscoveryService;
+import org.openhab.core.config.discovery.DiscoveryResult;
+import org.openhab.core.config.discovery.DiscoveryResultBuilder;
+import org.openhab.core.thing.ThingTypeUID;
+import org.openhab.core.thing.ThingUID;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link OwDiscoveryService} implements the discovery service for the OneWire binding.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class OwDiscoveryService extends AbstractDiscoveryService {
+    private final Logger logger = LoggerFactory.getLogger(OwDiscoveryService.class);
+
+    private final OwserverBridgeHandler owBridgeHandler;
+    private final ThingUID bridgeUID;
+
+    Map<SensorId, OwDiscoveryItem> owDiscoveryItems = new HashMap<>();
+    Set<SensorId> associatedSensors = new HashSet<>();
+
+    public OwDiscoveryService(OwserverBridgeHandler owBridgeHandler) {
+        super(SUPPORTED_THING_TYPES, 60, false);
+        this.owBridgeHandler = owBridgeHandler;
+        this.bridgeUID = owBridgeHandler.getThing().getUID();
+        logger.debug("registering discovery service for {}", owBridgeHandler);
+    }
+
+    private void scanDirectory(String baseDirectory) {
+        List<SensorId> directoryList;
+
+        logger.trace("scanning {} on bridge {}", baseDirectory, bridgeUID);
+        try {
+            directoryList = owBridgeHandler.getDirectory(baseDirectory);
+        } catch (OwException e) {
+            logger.info("empty directory '{}' for {}", baseDirectory, bridgeUID);
+            return;
+        }
+
+        // find all valid sensors
+        for (SensorId directoryEntry : directoryList) {
+            try {
+                OwDiscoveryItem owDiscoveryItem = new OwDiscoveryItem(owBridgeHandler, directoryEntry);
+                if (owDiscoveryItem.getSensorType() == OwSensorType.DS2409) {
+                    // scan hub sub-directories
+                    logger.trace("found hub {}, scanning sub-directories", directoryEntry);
+
+                    scanDirectory(owDiscoveryItem.getSensorId().getFullPath() + "/main/");
+                    scanDirectory(owDiscoveryItem.getSensorId().getFullPath() + "/aux/");
+                } else {
+                    // add found sensor to list
+                    logger.trace("found sensor {} (type: {})", directoryEntry, owDiscoveryItem.getSensorType());
+
+                    owDiscoveryItems.put(owDiscoveryItem.getSensorId(), owDiscoveryItem);
+                    associatedSensors.addAll(owDiscoveryItem.getAssociatedSensorIds());
+                }
+            } catch (OwException e) {
+                logger.debug("error while scanning for sensors in directory {} on bridge {}: {}", baseDirectory,
+                        bridgeUID, e.getMessage());
+            }
+        }
+    }
+
+    @Override
+    public void startScan() {
+        scanDirectory("/");
+
+        // remove duplicates
+        owDiscoveryItems.entrySet().removeIf(s -> associatedSensors.contains(s.getKey()));
+
+        // make discovery results
+        for (OwDiscoveryItem owDiscoveryItem : owDiscoveryItems.values()) {
+            owDiscoveryItem.checkSensorType();
+            try {
+                ThingTypeUID thingTypeUID = owDiscoveryItem.getThingTypeUID();
+
+                String normalizedId = owDiscoveryItem.getNormalizedSensorId();
+                ThingUID thingUID = new ThingUID(thingTypeUID, bridgeUID, normalizedId);
+                logger.debug("created thing UID {} for sensor {}, type {}", thingUID, owDiscoveryItem.getSensorId(),
+                        owDiscoveryItem.getSensorType());
+
+                Map<String, Object> properties = new HashMap<>();
+                properties.put(PROPERTY_MODELID, owDiscoveryItem.getSensorType().toString());
+                properties.put(PROPERTY_VENDOR, owDiscoveryItem.getVendor());
+                properties.put(CONFIG_ID, owDiscoveryItem.getSensorId().getFullPath());
+
+                DiscoveryResult discoveryResult = DiscoveryResultBuilder.create(thingUID).withThingType(thingTypeUID)
+                        .withProperties(properties).withBridge(bridgeUID).withLabel(owDiscoveryItem.getLabel()).build();
+
+                thingDiscovered(discoveryResult);
+            } catch (OwException e) {
+                logger.info("sensor-id {}: {}", owDiscoveryItem.getSensorId(), e.getMessage());
+            }
+        }
+    }
+
+    @Override
+    protected synchronized void stopScan() {
+        removeOlderResults(getTimestampOfLastScan());
+        super.stopScan();
+    }
+
+    @Override
+    public void deactivate() {
+        removeOlderResults(new Date().getTime());
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/handler/AdvancedMultisensorThingHandler.java

@@ -0,0 +1,265 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.handler;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.DS2438Configuration;
+import org.openhab.binding.onewire.internal.OwDynamicStateDescriptionProvider;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.config.AMSHandlerConfiguration;
+import org.openhab.binding.onewire.internal.device.AbstractOwDevice;
+import org.openhab.binding.onewire.internal.device.DS18x20;
+import org.openhab.binding.onewire.internal.device.DS2406_DS2413;
+import org.openhab.binding.onewire.internal.device.DS2438;
+import org.openhab.binding.onewire.internal.device.DS2438.LightSensorType;
+import org.openhab.binding.onewire.internal.device.OwChannelConfig;
+import org.openhab.binding.onewire.internal.device.OwSensorType;
+import org.openhab.core.config.core.Configuration;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.thing.ThingStatus;
+import org.openhab.core.thing.ThingStatusDetail;
+import org.openhab.core.thing.ThingTypeUID;
+import org.openhab.core.thing.binding.builder.ThingBuilder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link AdvancedMultisensorThingHandler} is responsible for handling DS2438 based multisensors (modules)
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class AdvancedMultisensorThingHandler extends OwBaseThingHandler {
+    public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = new HashSet<>(
+            Arrays.asList(THING_TYPE_AMS, THING_TYPE_BMS));
+    public static final Set<OwSensorType> SUPPORTED_SENSOR_TYPES = Collections
+            .unmodifiableSet(Stream.of(OwSensorType.AMS, OwSensorType.AMS_S, OwSensorType.BMS, OwSensorType.BMS_S)
+                    .collect(Collectors.toSet()));
+
+    private static final String PROPERTY_DS18B20 = "ds18b20";
+    private static final String PROPERTY_DS2413 = "ds2413";
+    private static final String PROPERTY_DS2438 = "ds2438";
+    private static final Set<String> REQUIRED_PROPERTIES_AMS = Collections.unmodifiableSet(
+            Stream.of(PROPERTY_HW_REVISION, PROPERTY_PROD_DATE, PROPERTY_DS18B20, PROPERTY_DS2438, PROPERTY_DS2413)
+                    .collect(Collectors.toSet()));
+    private static final Set<String> REQUIRED_PROPERTIES_BMS = Collections.unmodifiableSet(
+            Stream.of(PROPERTY_HW_REVISION, PROPERTY_PROD_DATE, PROPERTY_DS18B20).collect(Collectors.toSet()));
+
+    private final Logger logger = LoggerFactory.getLogger(AdvancedMultisensorThingHandler.class);
+
+    private final ThingTypeUID thingType = this.thing.getThingTypeUID();
+    private int hwRevision = 0;
+
+    private int digitalRefreshInterval = 10 * 1000;
+    private long digitalLastRefresh = 0;
+
+    public AdvancedMultisensorThingHandler(Thing thing,
+            OwDynamicStateDescriptionProvider dynamicStateDescriptionProvider) {
+        super(thing, dynamicStateDescriptionProvider, SUPPORTED_SENSOR_TYPES,
+                getRequiredProperties(thing.getThingTypeUID()));
+    }
+
+    @Override
+    public void initialize() {
+        AMSHandlerConfiguration configuration = getConfig().as(AMSHandlerConfiguration.class);
+        Map<String, String> properties = editProperties();
+
+        if (!super.configureThingHandler()) {
+            return;
+        }
+
+        hwRevision = Integer.valueOf(properties.get(PROPERTY_HW_REVISION));
+
+        sensors.add(new DS2438(sensorId, this));
+        sensors.add(new DS18x20(new SensorId(properties.get(PROPERTY_DS18B20)), this));
+        if (THING_TYPE_AMS.equals(thingType)) {
+            sensors.add(new DS2438(new SensorId(properties.get(PROPERTY_DS2438)), this));
+            sensors.add(new DS2406_DS2413(new SensorId(properties.get(PROPERTY_DS2413)), this));
+            digitalRefreshInterval = configuration.digitalRefresh * 1000;
+            digitalLastRefresh = 0;
+        }
+
+        scheduler.execute(() -> {
+            configureThingChannels();
+        });
+    }
+
+    @Override
+    public void refresh(OwserverBridgeHandler bridgeHandler, long now) {
+        try {
+            if ((now >= (digitalLastRefresh + digitalRefreshInterval)) && (thingType.equals(THING_TYPE_AMS))) {
+                logger.trace("refreshing digital {}", this.thing.getUID());
+
+                Boolean forcedRefresh = digitalLastRefresh == 0;
+                digitalLastRefresh = now;
+
+                if (!sensors.get(3).checkPresence(bridgeHandler)) {
+                    return;
+                }
+
+                sensors.get(3).refresh(bridgeHandler, forcedRefresh);
+            }
+
+            if (now >= (lastRefresh + refreshInterval)) {
+                if (!sensors.get(0).checkPresence(bridgeHandler)) {
+                    return;
+                }
+
+                logger.trace("refreshing analog {}", this.thing.getUID());
+
+                Boolean forcedRefresh = lastRefresh == 0;
+                lastRefresh = now;
+
+                if (thingType.equals(THING_TYPE_AMS)) {
+                    for (int i = 0; i < sensors.size() - 1; i++) {
+                        sensors.get(i).refresh(bridgeHandler, forcedRefresh);
+                    }
+                } else {
+                    for (int i = 0; i < sensors.size(); i++) {
+                        sensors.get(i).refresh(bridgeHandler, forcedRefresh);
+                    }
+                }
+            }
+        } catch (OwException e) {
+            logger.debug("{}: refresh exception '{}'", this.thing.getUID(), e.getMessage());
+            updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, "refresh exception");
+        }
+    }
+
+    @Override
+    protected void configureThingChannels() {
+        Configuration configuration = getConfig();
+        ThingBuilder thingBuilder = editThing();
+
+        // delete unwanted channels
+        Set<String> existingChannelIds = thing.getChannels().stream().map(channel -> channel.getUID().getId())
+                .collect(Collectors.toSet());
+        Set<String> wantedChannelIds = SENSOR_TYPE_CHANNEL_MAP.get(sensorType).stream()
+                .map(channelConfig -> channelConfig.channelId).collect(Collectors.toSet());
+        wantedChannelIds.add(CHANNEL_TEMPERATURE);
+        wantedChannelIds.add(CHANNEL_HUMIDITY);
+        existingChannelIds.stream().filter(channelId -> !wantedChannelIds.contains(channelId))
+                .forEach(channelId -> removeChannelIfExisting(thingBuilder, channelId));
+
+        // add or update wanted channels
+        SENSOR_TYPE_CHANNEL_MAP.get(sensorType).stream().forEach(channelConfig -> {
+            addChannelIfMissingAndEnable(thingBuilder, channelConfig);
+        });
+
+        // temperature channel
+        if (configuration.containsKey(CONFIG_TEMPERATURESENSOR)
+                && configuration.get(CONFIG_TEMPERATURESENSOR).equals("DS18B20")) {
+            addChannelIfMissingAndEnable(thingBuilder,
+                    new OwChannelConfig(CHANNEL_TEMPERATURE, CHANNEL_TYPE_UID_TEMPERATURE_POR_RES), 1);
+        } else {
+            addChannelIfMissingAndEnable(thingBuilder,
+                    new OwChannelConfig(CHANNEL_TEMPERATURE, CHANNEL_TYPE_UID_TEMPERATURE));
+        }
+
+        // humidity channel
+
+        addChannelIfMissingAndEnable(thingBuilder, new OwChannelConfig(CHANNEL_HUMIDITY, CHANNEL_TYPE_UID_HUMIDITY),
+                new Configuration(new HashMap<String, Object>() {
+                    private static final long serialVersionUID = 1L;
+                    {
+                        put(CONFIG_HUMIDITY, "/HIH4000/humidity");
+                    }
+                }));
+
+        // configure light channel
+        if (sensorType == OwSensorType.AMS_S || sensorType == OwSensorType.BMS_S) {
+            if (hwRevision <= 13) {
+                ((DS2438) sensors.get(0)).setLightSensorType(LightSensorType.ELABNET_V1);
+            } else {
+                ((DS2438) sensors.get(0)).setLightSensorType(LightSensorType.ELABNET_V2);
+            }
+        }
+
+        updateThing(thingBuilder.build());
+
+        try {
+            for (AbstractOwDevice sensor : sensors) {
+                sensor.configureChannels();
+            }
+        } catch (OwException e) {
+            updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, e.getMessage());
+            return;
+        }
+
+        validConfig = true;
+        updateStatus(ThingStatus.UNKNOWN, ThingStatusDetail.NONE);
+    }
+
+    @Override
+    public void updateSensorProperties(OwserverBridgeHandler bridgeHandler) throws OwException {
+        Map<String, String> properties = editProperties();
+        DS2438Configuration ds2438configuration = new DS2438Configuration(bridgeHandler, sensorId);
+
+        sensorType = DS2438Configuration.getMultisensorType(ds2438configuration.getSensorSubType(),
+                ds2438configuration.getAssociatedSensorTypes());
+
+        properties.put(PROPERTY_MODELID, sensorType.toString());
+        properties.put(PROPERTY_VENDOR, ds2438configuration.getVendor());
+
+        properties.put(PROPERTY_PROD_DATE, ds2438configuration.getProductionDate());
+        properties.put(PROPERTY_HW_REVISION, ds2438configuration.getHardwareRevision());
+
+        switch (sensorType) {
+            case BMS:
+            case BMS_S:
+                properties.put(PROPERTY_DS18B20,
+                        ds2438configuration.getAssociatedSensorIds(OwSensorType.DS18B20).get(0).getFullPath());
+                break;
+            case AMS:
+            case AMS_S:
+                properties.put(PROPERTY_DS18B20,
+                        ds2438configuration.getAssociatedSensorIds(OwSensorType.DS18B20).get(0).getFullPath());
+                properties.put(PROPERTY_DS2413,
+                        ds2438configuration.getAssociatedSensorIds(OwSensorType.DS2413).get(0).getFullPath());
+                properties.put(PROPERTY_DS2438,
+                        ds2438configuration.getAssociatedSensorIds(OwSensorType.MS_TV).get(0).getFullPath());
+
+                break;
+            default:
+                throw new OwException("sensorType " + sensorType.toString() + " not supported by this thing handler");
+        }
+
+        updateProperties(properties);
+    }
+
+    /**
+     * used to determine the correct set of required properties
+     *
+     * @param thingType
+     * @return
+     */
+    private static Set<String> getRequiredProperties(ThingTypeUID thingType) {
+        if (THING_TYPE_AMS.equals(thingType)) {
+            return REQUIRED_PROPERTIES_AMS;
+        } else {
+            return REQUIRED_PROPERTIES_BMS;
+        }
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/handler/BAE091xSensorThingHandler.java

@@ -0,0 +1,247 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.handler;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.OwDynamicStateDescriptionProvider;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.config.BAE091xHandlerConfiguration;
+import org.openhab.binding.onewire.internal.device.BAE0910;
+import org.openhab.binding.onewire.internal.device.OwChannelConfig;
+import org.openhab.binding.onewire.internal.device.OwSensorType;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.thing.Bridge;
+import org.openhab.core.thing.ChannelUID;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.thing.ThingStatus;
+import org.openhab.core.thing.ThingStatusDetail;
+import org.openhab.core.thing.ThingTypeUID;
+import org.openhab.core.thing.ThingUID;
+import org.openhab.core.thing.binding.builder.ThingBuilder;
+import org.openhab.core.types.Command;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link BAE091xSensorThingHandler} is responsible for handling BAE0910 based multisensors
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class BAE091xSensorThingHandler extends OwBaseThingHandler {
+    public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Collections.singleton(THING_TYPE_BAE091X);
+
+    private final Logger logger = LoggerFactory.getLogger(BAE091xSensorThingHandler.class);
+
+    public static final Set<OwSensorType> SUPPORTED_SENSOR_TYPES = Collections.singleton(OwSensorType.BAE0910);
+
+    public BAE091xSensorThingHandler(Thing thing, OwDynamicStateDescriptionProvider dynamicStateDescriptionProvider) {
+        super(thing, dynamicStateDescriptionProvider, SUPPORTED_SENSOR_TYPES);
+    }
+
+    @Override
+    public void handleCommand(ChannelUID channelUID, Command command) {
+        if (command instanceof OnOffType) {
+            if (channelUID.getId().startsWith(CHANNEL_DIGITAL)) {
+                Bridge bridge = getBridge();
+                if (bridge != null) {
+                    OwserverBridgeHandler bridgeHandler = (OwserverBridgeHandler) bridge.getHandler();
+                    if (bridgeHandler != null) {
+                        if (!((BAE0910) sensors.get(0)).writeChannel(bridgeHandler, channelUID.getId(), command)) {
+                            logger.debug("writing to channel {} in thing {} not permitted (input channel)", channelUID,
+                                    this.thing.getUID());
+                        }
+                    } else {
+                        logger.warn("bridge handler not found");
+                    }
+                } else {
+                    logger.warn("bridge not found");
+                }
+            }
+        }
+        // TODO: PWM channels
+        super.handleCommand(channelUID, command);
+    }
+
+    @Override
+    public void initialize() {
+        if (!super.configureThingHandler()) {
+            return;
+        }
+
+        sensors.add(new BAE0910(sensorId, this));
+
+        scheduler.execute(() -> {
+            configureThingChannels();
+        });
+    }
+
+    @Override
+    protected void configureThingChannels() {
+        ThingUID thingUID = getThing().getUID();
+        logger.debug("configuring sensors for {}", thingUID);
+
+        BAE091xHandlerConfiguration configuration = getConfig().as(BAE091xHandlerConfiguration.class);
+
+        Set<OwChannelConfig> wantedChannel = new HashSet<>();
+        wantedChannel.addAll(SENSOR_TYPE_CHANNEL_MAP.get(sensorType));
+
+        // Pin1:
+        switch (configuration.pin1) {
+            case CONFIG_BAE_PIN_DISABLED:
+                break;
+            case CONFIG_BAE_PIN_COUNTER:
+                wantedChannel.add(new OwChannelConfig(CHANNEL_COUNTER, CHANNEL_TYPE_UID_BAE_COUNTER));
+                break;
+            default:
+                updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
+                        "unknown configuration option for pin 1");
+                return;
+        }
+
+        // Pin2:
+        switch (configuration.pin2) {
+            case CONFIG_BAE_PIN_DISABLED:
+                break;
+            case CONFIG_BAE_PIN_OUT:
+                wantedChannel.add(
+                        new OwChannelConfig(CHANNEL_DIGITAL2, CHANNEL_TYPE_UID_BAE_DIGITAL_OUT, "Digital Out Pin 2"));
+                break;
+            case CONFIG_BAE_PIN_PWM:
+                wantedChannel
+                        .add(new OwChannelConfig(CHANNEL_PWM_DUTY3, CHANNEL_TYPE_UID_BAE_PWM_DUTY, "Duty Cycle PWM 3"));
+                wantedChannel.add(new OwChannelConfig(CHANNEL_PWM_FREQ1, CHANNEL_TYPE_UID_BAE_PWM_FREQUENCY,
+                        "Frequency PWM 1/3"));
+                break;
+            default:
+                updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
+                        "unknown configuration option for pin 2");
+                return;
+        }
+
+        // Pin6:
+        switch (configuration.pin6) {
+            case CONFIG_BAE_PIN_DISABLED:
+                break;
+            case CONFIG_BAE_PIN_PIO:
+                wantedChannel.add(new OwChannelConfig(CHANNEL_DIGITAL6, CHANNEL_TYPE_UID_BAE_PIO, "PIO Pin 6"));
+                break;
+            case CONFIG_BAE_PIN_PWM:
+                wantedChannel
+                        .add(new OwChannelConfig(CHANNEL_PWM_DUTY4, CHANNEL_TYPE_UID_BAE_PWM_DUTY, "Duty Cycle PWM 4"));
+                wantedChannel.add(new OwChannelConfig(CHANNEL_PWM_FREQ2, CHANNEL_TYPE_UID_BAE_PWM_FREQUENCY,
+                        "Frequency PWM 2/4"));
+                break;
+            default:
+                updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
+                        "unknown configuration option for pin 6");
+                return;
+        }
+
+        // Pin7:
+        switch (configuration.pin7) {
+            case CONFIG_BAE_PIN_DISABLED:
+                break;
+            case CONFIG_BAE_PIN_ANALOG:
+                wantedChannel.add(new OwChannelConfig(CHANNEL_VOLTAGE, CHANNEL_TYPE_UID_BAE_ANALOG, "Analog Input"));
+                break;
+            case CONFIG_BAE_PIN_OUT:
+                wantedChannel.add(
+                        new OwChannelConfig(CHANNEL_DIGITAL7, CHANNEL_TYPE_UID_BAE_DIGITAL_OUT, "Digital Out Pin 7"));
+                break;
+            case CONFIG_BAE_PIN_PWM:
+                wantedChannel
+                        .add(new OwChannelConfig(CHANNEL_PWM_DUTY2, CHANNEL_TYPE_UID_BAE_PWM_DUTY, "Duty Cycle PWM 2"));
+                wantedChannel.add(new OwChannelConfig(CHANNEL_PWM_FREQ2, CHANNEL_TYPE_UID_BAE_PWM_FREQUENCY,
+                        "Frequency PWM 2/4"));
+                break;
+            default:
+                updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
+                        "unknown configuration option for pin 7");
+                return;
+        }
+
+        // Pin8:
+        switch (configuration.pin8) {
+            case CONFIG_BAE_PIN_DISABLED:
+                break;
+            case CONFIG_BAE_PIN_IN:
+                wantedChannel.add(new OwChannelConfig(CHANNEL_DIGITAL8, CHANNEL_TYPE_UID_BAE_DIN, "Digital In Pin 8"));
+                break;
+            case CONFIG_BAE_PIN_OUT:
+                wantedChannel
+                        .add(new OwChannelConfig(CHANNEL_DIGITAL8, CHANNEL_TYPE_UID_BAE_DOUT, "Digital Out Pin 8"));
+                break;
+            case CONFIG_BAE_PIN_PWM:
+                wantedChannel
+                        .add(new OwChannelConfig(CHANNEL_PWM_DUTY1, CHANNEL_TYPE_UID_BAE_PWM_DUTY, "Duty Cycle PWM 1"));
+                wantedChannel.add(new OwChannelConfig(CHANNEL_PWM_FREQ1, CHANNEL_TYPE_UID_BAE_PWM_FREQUENCY,
+                        "Frequency PWM 1/3"));
+
+                break;
+            default:
+                updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
+                        "unknown configuration option for pin 8");
+                return;
+        }
+
+        ThingBuilder thingBuilder = editThing();
+
+        // remove unwanted channels
+        Set<String> existingChannelIds = thing.getChannels().stream().map(channel -> channel.getUID().getId())
+                .collect(Collectors.toSet());
+        Set<String> wantedChannelIds = wantedChannel.stream().map(channelConfig -> channelConfig.channelId)
+                .collect(Collectors.toSet());
+        existingChannelIds.stream().filter(channelId -> !wantedChannelIds.contains(channelId))
+                .forEach(channelId -> removeChannelIfExisting(thingBuilder, channelId));
+
+        // add or update wanted channels
+        wantedChannel.stream().forEach(channelConfig -> {
+            addChannelIfMissingAndEnable(thingBuilder, channelConfig);
+        });
+
+        updateThing(thingBuilder.build());
+
+        try {
+            sensors.get(0).configureChannels();
+        } catch (OwException e) {
+            updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, e.getMessage());
+            return;
+        }
+
+        validConfig = true;
+        updateStatus(ThingStatus.UNKNOWN, ThingStatusDetail.NONE);
+    }
+
+    @Override
+    public void updateSensorProperties(OwserverBridgeHandler bridgeHandler) throws OwException {
+        Map<String, String> properties = editProperties();
+
+        sensorType = BAE0910.getDeviceSubType(bridgeHandler, sensorId);
+
+        properties.put(PROPERTY_MODELID, sensorType.toString());
+        properties.put(PROPERTY_VENDOR, "Brain4home");
+
+        updateProperties(properties);
+
+        logger.trace("updated modelid/vendor to {} / {}", sensorType.name(), "Brain4home");
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/handler/BasicMultisensorThingHandler.java

@@ -0,0 +1,120 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.handler;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.util.Collections;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.DS2438Configuration;
+import org.openhab.binding.onewire.internal.OwDynamicStateDescriptionProvider;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.config.MstxHandlerConfiguration;
+import org.openhab.binding.onewire.internal.device.DS1923;
+import org.openhab.binding.onewire.internal.device.DS2438;
+import org.openhab.binding.onewire.internal.device.DS2438.CurrentSensorType;
+import org.openhab.binding.onewire.internal.device.DS2438.LightSensorType;
+import org.openhab.binding.onewire.internal.device.OwSensorType;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.thing.ThingTypeUID;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link BasicMultisensorThingHandler} is responsible for handling DS2438/DS1923 based multisensors (single
+ * sensors)
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class BasicMultisensorThingHandler extends OwBaseThingHandler {
+    public Logger logger = LoggerFactory.getLogger(BasicMultisensorThingHandler.class);
+    public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Collections.singleton(THING_TYPE_MS_TX);
+    public static final Set<OwSensorType> SUPPORTED_SENSOR_TYPES = Collections
+            .unmodifiableSet(Stream.of(OwSensorType.MS_TH, OwSensorType.MS_TC, OwSensorType.MS_TL, OwSensorType.MS_TV,
+                    OwSensorType.DS1923, OwSensorType.DS2438).collect(Collectors.toSet()));
+
+    public BasicMultisensorThingHandler(Thing thing,
+            OwDynamicStateDescriptionProvider dynamicStateDescriptionProvider) {
+        super(thing, dynamicStateDescriptionProvider, SUPPORTED_SENSOR_TYPES);
+    }
+
+    @Override
+    public void initialize() {
+        if (!super.configureThingHandler()) {
+            return;
+        }
+
+        MstxHandlerConfiguration configuration = getConfig().as(MstxHandlerConfiguration.class);
+        if (configuration.manualsensor != null && sensorType != configuration.manualsensor) {
+            logger.debug("sensorType override for thing {}: old={}, new={}", thing.getUID(), sensorType,
+                    configuration.manualsensor);
+            sensorType = configuration.manualsensor;
+        }
+
+        // add sensors
+        if (sensorType == OwSensorType.DS1923) {
+            sensors.add(new DS1923(sensorId, this));
+        } else {
+            sensors.add(new DS2438(sensorId, this));
+        }
+
+        scheduler.execute(() -> {
+            configureThingChannels();
+        });
+    }
+
+    @Override
+    protected void configureThingChannels() {
+        switch (sensorType) {
+            case DS2438:
+                ((DS2438) sensors.get(0)).setCurrentSensorType(CurrentSensorType.INTERNAL);
+                break;
+            case MS_TC:
+                ((DS2438) sensors.get(0)).setCurrentSensorType(CurrentSensorType.IBUTTONLINK);
+                break;
+            case MS_TL:
+                ((DS2438) sensors.get(0)).setLightSensorType(LightSensorType.IBUTTONLINK);
+                break;
+            default:
+        }
+
+        super.configureThingChannels();
+    }
+
+    @Override
+    public void updateSensorProperties(OwserverBridgeHandler bridgeHandler) throws OwException {
+        Map<String, String> properties = editProperties();
+        sensorType = bridgeHandler.getType(sensorId);
+
+        if (sensorType == OwSensorType.DS1923) {
+            properties.put(PROPERTY_MODELID, sensorType.toString());
+            properties.put(PROPERTY_VENDOR, "Dallas/Maxim");
+        } else {
+            DS2438Configuration ds2438configuration = new DS2438Configuration(bridgeHandler, sensorId);
+
+            sensorType = ds2438configuration.getSensorSubType();
+            properties.put(PROPERTY_MODELID, sensorType.toString());
+
+            String vendor = ds2438configuration.getVendor();
+            properties.put(PROPERTY_VENDOR, vendor);
+        }
+
+        updateProperties(properties);
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/handler/BasicThingHandler.java

@@ -0,0 +1,118 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.handler;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.CHANNEL_DIGITAL;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.THING_TYPE_BASIC;
+
+import java.util.Collections;
+import java.util.Set;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.OwDynamicStateDescriptionProvider;
+import org.openhab.binding.onewire.internal.device.*;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.thing.Bridge;
+import org.openhab.core.thing.ChannelUID;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.thing.ThingTypeUID;
+import org.openhab.core.types.Command;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link BasicThingHandler} is responsible for handling simple sensors
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class BasicThingHandler extends OwBaseThingHandler {
+    public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Collections.singleton(THING_TYPE_BASIC);
+    public static final Set<OwSensorType> SUPPORTED_SENSOR_TYPES = Collections
+            .unmodifiableSet(Stream.of(OwSensorType.DS1420, OwSensorType.DS18B20, OwSensorType.DS18S20,
+                    OwSensorType.DS1822, OwSensorType.DS2401, OwSensorType.DS2405, OwSensorType.DS2406,
+                    OwSensorType.DS2408, OwSensorType.DS2413, OwSensorType.DS2423).collect(Collectors.toSet()));
+
+    private final Logger logger = LoggerFactory.getLogger(BasicThingHandler.class);
+
+    public BasicThingHandler(Thing thing, OwDynamicStateDescriptionProvider dynamicStateDescriptionProvider) {
+        super(thing, dynamicStateDescriptionProvider, SUPPORTED_SENSOR_TYPES);
+    }
+
+    @Override
+    public void initialize() {
+        if (!super.configureThingHandler()) {
+            return;
+        }
+
+        // add sensor
+        switch (sensorType) {
+            case DS18B20:
+            case DS18S20:
+            case DS1822:
+                sensors.add(new DS18x20(sensorId, this));
+                break;
+            case DS1420:
+            case DS2401:
+                sensors.add(new DS2401(sensorId, this));
+                break;
+            case DS2405:
+                sensors.add(new DS2405(sensorId, this));
+                break;
+            case DS2406:
+            case DS2413:
+                sensors.add(new DS2406_DS2413(sensorId, this));
+                break;
+            case DS2408:
+                sensors.add(new DS2408(sensorId, this));
+                break;
+            case DS2423:
+                sensors.add(new DS2423(sensorId, this));
+                break;
+            default:
+                throw new IllegalArgumentException(
+                        "unsupported sensorType " + sensorType.name() + ", this should have been checked before!");
+        }
+
+        scheduler.execute(() -> {
+            configureThingChannels();
+        });
+    }
+
+    @Override
+    public void handleCommand(ChannelUID channelUID, Command command) {
+        if (command instanceof OnOffType) {
+            if (channelUID.getId().startsWith(CHANNEL_DIGITAL) && thing.getChannel(channelUID.getId()) != null) {
+                Integer ioChannel = Integer.valueOf(channelUID.getId().substring(channelUID.getId().length() - 1));
+                Bridge bridge = getBridge();
+                if (bridge != null) {
+                    OwserverBridgeHandler bridgeHandler = (OwserverBridgeHandler) bridge.getHandler();
+                    if (bridgeHandler != null) {
+                        if (!((AbstractDigitalOwDevice) sensors.get(0)).writeChannel(bridgeHandler, ioChannel,
+                                command)) {
+                            logger.debug("writing to channel {} in thing {} not permitted (input channel)", channelUID,
+                                    this.thing.getUID());
+                        }
+                    } else {
+                        logger.warn("bridge handler not found");
+                    }
+                } else {
+                    logger.warn("bridge not found");
+                }
+            }
+        }
+        super.handleCommand(channelUID, command);
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/handler/EDSSensorThingHandler.java

@@ -0,0 +1,90 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.handler;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.nio.charset.StandardCharsets;
+import java.util.Collections;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.OwDynamicStateDescriptionProvider;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.OwPageBuffer;
+import org.openhab.binding.onewire.internal.device.EDS006x;
+import org.openhab.binding.onewire.internal.device.OwSensorType;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.thing.ThingTypeUID;
+
+/**
+ * The {@link EDSSensorThingHandler} is responsible for handling EDS multisensors
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class EDSSensorThingHandler extends OwBaseThingHandler {
+    public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Collections.singleton(THING_TYPE_EDS_ENV);
+    public static final Set<OwSensorType> SUPPORTED_SENSOR_TYPES = Collections
+            .unmodifiableSet(Stream.of(OwSensorType.EDS0064, OwSensorType.EDS0065, OwSensorType.EDS0066,
+                    OwSensorType.EDS0067, OwSensorType.EDS0068).collect(Collectors.toSet()));
+    private static final Set<String> REQUIRED_PROPERTIES = Collections.singleton(PROPERTY_HW_REVISION);
+
+    public EDSSensorThingHandler(Thing thing, OwDynamicStateDescriptionProvider dynamicStateDescriptionProvider) {
+        super(thing, dynamicStateDescriptionProvider, SUPPORTED_SENSOR_TYPES, REQUIRED_PROPERTIES);
+    }
+
+    @Override
+    public void initialize() {
+        if (!super.configureThingHandler()) {
+            return;
+        }
+
+        // add sensors
+        sensors.add(new EDS006x(sensorId, sensorType, this));
+
+        scheduler.execute(() -> {
+            configureThingChannels();
+        });
+    }
+
+    @Override
+    public void updateSensorProperties(OwserverBridgeHandler bridgeHandler) throws OwException {
+        Map<String, String> properties = editProperties();
+
+        OwPageBuffer pages = bridgeHandler.readPages(sensorId);
+
+        OwSensorType sensorType = OwSensorType.UNKNOWN;
+        try {
+            sensorType = OwSensorType.valueOf(new String(pages.getPage(0), 0, 7, StandardCharsets.US_ASCII));
+        } catch (IllegalArgumentException e) {
+        }
+
+        if (!SUPPORTED_SENSOR_TYPES.contains(sensorType)) {
+            throw new OwException("sensorType not supported for EDSSensorThing");
+        }
+
+        int fwRevisionLow = pages.getByte(3, 3);
+        int fwRevisionHigh = pages.getByte(3, 4);
+        String fwRevision = String.format("%d.%d", fwRevisionHigh, fwRevisionLow);
+
+        properties.put(PROPERTY_MODELID, sensorType.name());
+        properties.put(PROPERTY_VENDOR, "Embedded Data Systems");
+        properties.put(PROPERTY_HW_REVISION, String.valueOf(fwRevision));
+
+        updateProperties(properties);
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/handler/OwBaseThingHandler.java

@@ -0,0 +1,445 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.handler;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.openhab.binding.onewire.internal.OwDynamicStateDescriptionProvider;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.config.BaseHandlerConfiguration;
+import org.openhab.binding.onewire.internal.device.AbstractOwDevice;
+import org.openhab.binding.onewire.internal.device.OwChannelConfig;
+import org.openhab.binding.onewire.internal.device.OwSensorType;
+import org.openhab.core.config.core.Configuration;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.thing.Bridge;
+import org.openhab.core.thing.Channel;
+import org.openhab.core.thing.ChannelUID;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.thing.ThingStatus;
+import org.openhab.core.thing.ThingStatusDetail;
+import org.openhab.core.thing.ThingStatusInfo;
+import org.openhab.core.thing.binding.BaseThingHandler;
+import org.openhab.core.thing.binding.builder.ChannelBuilder;
+import org.openhab.core.thing.binding.builder.ThingBuilder;
+import org.openhab.core.types.Command;
+import org.openhab.core.types.RefreshType;
+import org.openhab.core.types.State;
+import org.openhab.core.types.UnDefType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link OwBaseThingHandler} class defines a handler for simple OneWire devices
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public abstract class OwBaseThingHandler extends BaseThingHandler {
+    private final Logger logger = LoggerFactory.getLogger(OwBaseThingHandler.class);
+
+    protected static final int PROPERTY_UPDATE_INTERVAL = 5000; // in ms
+    protected static final int PROPERTY_UPDATE_MAX_RETRY = 5;
+
+    private static final Set<String> REQUIRED_PROPERTIES = Collections
+            .unmodifiableSet(Stream.of(PROPERTY_MODELID, PROPERTY_VENDOR).collect(Collectors.toSet()));
+
+    protected List<String> requiredProperties = new ArrayList<>(REQUIRED_PROPERTIES);
+    protected Set<OwSensorType> supportedSensorTypes;
+
+    protected final List<AbstractOwDevice> sensors = new ArrayList<>();
+    protected @NonNullByDefault({}) SensorId sensorId;
+    protected @NonNullByDefault({}) OwSensorType sensorType;
+
+    protected long lastRefresh = 0;
+    protected long refreshInterval = 300 * 1000;
+
+    protected boolean validConfig = false;
+    protected boolean showPresence = false;
+
+    protected OwDynamicStateDescriptionProvider dynamicStateDescriptionProvider;
+
+    protected @Nullable ScheduledFuture<?> updateTask;
+
+    public OwBaseThingHandler(Thing thing, OwDynamicStateDescriptionProvider dynamicStateDescriptionProvider,
+            Set<OwSensorType> supportedSensorTypes) {
+        super(thing);
+
+        this.dynamicStateDescriptionProvider = dynamicStateDescriptionProvider;
+        this.supportedSensorTypes = supportedSensorTypes;
+    }
+
+    public OwBaseThingHandler(Thing thing, OwDynamicStateDescriptionProvider dynamicStateDescriptionProvider,
+            Set<OwSensorType> supportedSensorTypes, Set<String> requiredProperties) {
+        super(thing);
+
+        this.dynamicStateDescriptionProvider = dynamicStateDescriptionProvider;
+        this.supportedSensorTypes = supportedSensorTypes;
+        this.requiredProperties.addAll(requiredProperties);
+    }
+
+    @Override
+    public void handleCommand(ChannelUID channelUID, Command command) {
+        if (command instanceof RefreshType) {
+            lastRefresh = 0;
+            logger.trace("scheduled {} for refresh", this.thing.getUID());
+        }
+    }
+
+    @Override
+    public void initialize() {
+        configureThingHandler();
+    }
+
+    protected boolean configureThingHandler() {
+        BaseHandlerConfiguration configuration = getConfig().as(BaseHandlerConfiguration.class);
+        Map<String, String> properties = thing.getProperties();
+
+        if (getBridge() == null) {
+            updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "bridge missing");
+            return false;
+        }
+        sensors.clear();
+
+        final String id = configuration.id;
+        if (id != null) {
+            try {
+                this.sensorId = new SensorId(id);
+            } catch (IllegalArgumentException e) {
+                updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "sensor id format mismatch");
+                return false;
+            }
+        } else {
+            updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "sensor id missing");
+            return false;
+        }
+
+        refreshInterval = configuration.refresh * 1000;
+
+        // check if all required properties are present. update if not
+        for (String property : requiredProperties) {
+            if (!properties.containsKey(property)) {
+                updateSensorProperties();
+                return false;
+            }
+        }
+
+        sensorType = OwSensorType.valueOf(properties.get(PROPERTY_MODELID));
+        if (!supportedSensorTypes.contains(sensorType)) {
+            updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
+                    "sensor type not supported by this thing type");
+            return false;
+        }
+
+        lastRefresh = 0;
+        return true;
+    }
+
+    protected void configureThingChannels() {
+        ThingBuilder thingBuilder = editThing();
+
+        logger.debug("configuring sensors for {}", thing.getUID());
+
+        // remove unwanted channels
+        Set<String> existingChannelIds = thing.getChannels().stream().map(channel -> channel.getUID().getId())
+                .collect(Collectors.toSet());
+        Set<String> wantedChannelIds = SENSOR_TYPE_CHANNEL_MAP.get(sensorType).stream()
+                .map(channelConfig -> channelConfig.channelId).collect(Collectors.toSet());
+        existingChannelIds.stream().filter(channelId -> !wantedChannelIds.contains(channelId))
+                .forEach(channelId -> removeChannelIfExisting(thingBuilder, channelId));
+
+        // add or update wanted channels
+        SENSOR_TYPE_CHANNEL_MAP.get(sensorType).stream().forEach(channelConfig -> {
+            addChannelIfMissingAndEnable(thingBuilder, channelConfig);
+        });
+
+        updateThing(thingBuilder.build());
+
+        try {
+            sensors.get(0).configureChannels();
+        } catch (OwException e) {
+            updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, e.getMessage());
+            return;
+        }
+
+        if (thing.getChannel(CHANNEL_PRESENT) != null) {
+            showPresence = true;
+        }
+
+        validConfig = true;
+        updateStatus(ThingStatus.UNKNOWN, ThingStatusDetail.NONE);
+    }
+
+    /**
+     * check if thing can be refreshed from the bridge handler
+     *
+     * @return true if thing can be refreshed
+     */
+    public boolean isRefreshable() {
+        return super.isInitialized()
+                && this.thing.getStatusInfo().getStatusDetail() != ThingStatusDetail.CONFIGURATION_ERROR
+                && this.thing.getStatusInfo().getStatusDetail() != ThingStatusDetail.BRIDGE_OFFLINE;
+    }
+
+    /**
+     * refresh this thing
+     *
+     * needs proper exception handling for refresh errors if overridden
+     *
+     * @param bridgeHandler bridge handler to use for communication with ow bus
+     * @param now current time
+     */
+    public void refresh(OwserverBridgeHandler bridgeHandler, long now) {
+        try {
+            Boolean forcedRefresh = lastRefresh == 0;
+            if (now >= (lastRefresh + refreshInterval)) {
+                logger.trace("refreshing {}", this.thing.getUID());
+
+                lastRefresh = now;
+
+                if (!sensors.get(0).checkPresence(bridgeHandler)) {
+                    logger.trace("sensor not present");
+                    return;
+                }
+
+                for (int i = 0; i < sensors.size(); i++) {
+                    logger.trace("refreshing sensor {} ({})", i, sensors.get(i).getSensorId());
+                    sensors.get(i).refresh(bridgeHandler, forcedRefresh);
+                }
+            }
+        } catch (OwException e) {
+            logger.debug("{}: refresh exception {}", this.thing.getUID(), e.getMessage());
+            updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, "refresh exception");
+        }
+    }
+
+    /**
+     * update presence status to present state of slave
+     *
+     * @param presentState current present state
+     */
+    public void updatePresenceStatus(State presentState) {
+        if (OnOffType.ON.equals(presentState)) {
+            updateStatus(ThingStatus.ONLINE);
+            if (showPresence) {
+                updateState(CHANNEL_PRESENT, OnOffType.ON);
+            }
+        } else if (OnOffType.OFF.equals(presentState)) {
+            updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, "slave missing");
+            if (showPresence) {
+                updateState(CHANNEL_PRESENT, OnOffType.OFF);
+            }
+        } else {
+            updateStatus(ThingStatus.UNKNOWN);
+            if (showPresence) {
+                updateState(CHANNEL_PRESENT, UnDefType.UNDEF);
+            }
+        }
+    }
+
+    /**
+     * post update to channel
+     *
+     * @param channelId channel id
+     * @param state new channel state
+     */
+    public void postUpdate(String channelId, State state) {
+        if (this.thing.getChannel(channelId) != null) {
+            updateState(channelId, state);
+        } else {
+            logger.warn("{} missing channel {} when posting update {}", this.thing.getUID(), channelId, state);
+        }
+    }
+
+    @Override
+    public void bridgeStatusChanged(ThingStatusInfo bridgeStatusInfo) {
+        if (bridgeStatusInfo.getStatus() == ThingStatus.ONLINE
+                && getThing().getStatusInfo().getStatusDetail() == ThingStatusDetail.BRIDGE_OFFLINE) {
+            if (validConfig) {
+                updatePresenceStatus(UnDefType.UNDEF);
+            } else {
+                updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR);
+            }
+        } else if (bridgeStatusInfo.getStatus() == ThingStatus.OFFLINE) {
+            updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.BRIDGE_OFFLINE);
+        }
+    }
+
+    @Override
+    public void dispose() {
+        dynamicStateDescriptionProvider.removeDescriptionsForThing(thing.getUID());
+        super.dispose();
+    }
+
+    /**
+     * add this sensor to the property update list of the bridge handler
+     *
+     */
+    protected void updateSensorProperties() {
+        Bridge bridge = getBridge();
+        if (bridge == null) {
+            updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "bridge not found");
+            return;
+        }
+
+        OwserverBridgeHandler bridgeHandler = (OwserverBridgeHandler) bridge.getHandler();
+        if (bridgeHandler == null) {
+            logger.debug("bridgehandler for {} not available for scheduling property update, retrying in 5s",
+                    thing.getUID());
+            scheduler.schedule(() -> {
+                updateSensorProperties();
+            }, 5000, TimeUnit.MILLISECONDS);
+            return;
+        }
+
+        updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "required properties missing");
+        bridgeHandler.scheduleForPropertiesUpdate(thing);
+    }
+
+    /**
+     * thing specific update method for sensor properties
+     *
+     * called by the bridge handler
+     *
+     * @param bridgeHandler the bridge handler to be used
+     * @return properties to be added to the properties map
+     * @throws OwException
+     */
+    public void updateSensorProperties(OwserverBridgeHandler bridgeHandler) throws OwException {
+        Map<String, String> properties = editProperties();
+        OwSensorType sensorType = bridgeHandler.getType(sensorId);
+        properties.put(PROPERTY_MODELID, sensorType.toString());
+        properties.put(PROPERTY_VENDOR, "Dallas/Maxim");
+
+        updateProperties(properties);
+
+        logger.trace("updated modelid/vendor to {} / {}", sensorType.name(), "Dallas/Maxim");
+    }
+
+    /**
+     * get the dynamic state description provider for this thing
+     *
+     * @return
+     */
+    public @Nullable OwDynamicStateDescriptionProvider getDynamicStateDescriptionProvider() {
+        return dynamicStateDescriptionProvider;
+    }
+
+    /**
+     * remove a channel during initialization if it exists
+     *
+     * @param thingBuilder ThingBuilder of the edited thing
+     * @param channelId id of the channel
+     */
+    protected void removeChannelIfExisting(ThingBuilder thingBuilder, String channelId) {
+        if (thing.getChannel(channelId) != null) {
+            thingBuilder.withoutChannel(new ChannelUID(thing.getUID(), channelId));
+        }
+    }
+
+    /**
+     * adds (or replaces) a channel and enables it within the sensor (configuration preserved, default sensor)
+     *
+     * @param thingBuilder ThingBuilder of the edited thing
+     * @param channelConfig a OwChannelConfig for the new channel
+     * @return the newly created channel
+     */
+    protected Channel addChannelIfMissingAndEnable(ThingBuilder thingBuilder, OwChannelConfig channelConfig) {
+        return addChannelIfMissingAndEnable(thingBuilder, channelConfig, null, 0);
+    }
+
+    /**
+     * adds (or replaces) a channel and enables it within the sensor (configuration overridden, default sensor)
+     *
+     * @param thingBuilder ThingBuilder of the edited thing
+     * @param channelConfig a OwChannelConfig for the new channel
+     * @param configuration the new Configuration for this channel
+     * @return the newly created channel
+     */
+    protected Channel addChannelIfMissingAndEnable(ThingBuilder thingBuilder, OwChannelConfig channelConfig,
+            Configuration configuration) {
+        return addChannelIfMissingAndEnable(thingBuilder, channelConfig, configuration, 0);
+    }
+
+    /**
+     * adds (or replaces) a channel and enables it within the sensor (configuration preserved)
+     *
+     * @param thingBuilder ThingBuilder of the edited thing
+     * @param channelConfig a OwChannelConfig for the new channel
+     * @param sensorNo number of sensor that provides this channel
+     * @return the newly created channel
+     */
+    protected Channel addChannelIfMissingAndEnable(ThingBuilder thingBuilder, OwChannelConfig channelConfig,
+            int sensorNo) {
+        return addChannelIfMissingAndEnable(thingBuilder, channelConfig, null, sensorNo);
+    }
+
+    /**
+     * adds (or replaces) a channel and enables it within the sensor (configuration overridden)
+     *
+     * @param thingBuilder ThingBuilder of the edited thing
+     * @param channelConfig a OwChannelConfig for the new channel
+     * @param configuration the new Configuration for this channel
+     * @param sensorNo number of sensor that provides this channel
+     * @return the newly created channel
+     */
+    protected Channel addChannelIfMissingAndEnable(ThingBuilder thingBuilder, OwChannelConfig channelConfig,
+            @Nullable Configuration configuration, int sensorNo) {
+        Channel channel = thing.getChannel(channelConfig.channelId);
+        Configuration config = configuration;
+        String label = channelConfig.label;
+
+        // remove channel if wrong type uid and preserve config if not overridden
+        if (channel != null && !channelConfig.channelTypeUID.equals(channel.getChannelTypeUID())) {
+            removeChannelIfExisting(thingBuilder, channelConfig.channelId);
+            if (config == null) {
+                config = channel.getConfiguration();
+            }
+            channel = null;
+        }
+
+        // create channel if missing
+        if (channel == null) {
+            ChannelBuilder channelBuilder = ChannelBuilder
+                    .create(new ChannelUID(thing.getUID(), channelConfig.channelId),
+                            ACCEPTED_ITEM_TYPES_MAP.get(channelConfig.channelId))
+                    .withType(channelConfig.channelTypeUID);
+            if (label != null) {
+                channelBuilder.withLabel(label);
+            }
+            if (config != null) {
+                channelBuilder.withConfiguration(config);
+            }
+            channel = channelBuilder.build();
+            thingBuilder.withChannel(channel);
+        }
+
+        // enable channel in sensor
+        sensors.get(sensorNo).enableChannel(channelConfig.channelId);
+
+        return channel;
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/handler/OwserverBridgeHandler.java

@@ -0,0 +1,430 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.handler;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.BitSet;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Queue;
+import java.util.Set;
+import java.util.concurrent.ConcurrentLinkedQueue;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.TimeUnit;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.OwPageBuffer;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.device.OwSensorType;
+import org.openhab.binding.onewire.internal.owserver.OwfsDirectChannelConfig;
+import org.openhab.binding.onewire.internal.owserver.OwserverConnection;
+import org.openhab.binding.onewire.internal.owserver.OwserverConnectionState;
+import org.openhab.binding.onewire.internal.owserver.OwserverDeviceParameter;
+import org.openhab.core.config.core.Configuration;
+import org.openhab.core.library.types.DecimalType;
+import org.openhab.core.library.types.StringType;
+import org.openhab.core.thing.Bridge;
+import org.openhab.core.thing.Channel;
+import org.openhab.core.thing.ChannelUID;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.thing.ThingStatus;
+import org.openhab.core.thing.ThingStatusDetail;
+import org.openhab.core.thing.ThingTypeUID;
+import org.openhab.core.thing.binding.BaseBridgeHandler;
+import org.openhab.core.types.Command;
+import org.openhab.core.types.State;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link OwserverBridgeHandler} class implements the refresher and the interface for reading from the bridge
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class OwserverBridgeHandler extends BaseBridgeHandler {
+    public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Collections.singleton(THING_TYPE_OWSERVER);
+
+    private final Logger logger = LoggerFactory.getLogger(OwserverBridgeHandler.class);
+    protected boolean refreshable = false;
+
+    protected ScheduledFuture<?> refreshTask = scheduler.scheduleWithFixedDelay(this::refresh, 1, 1000,
+            TimeUnit.MILLISECONDS);
+
+    // thing update
+    private final Queue<@Nullable Thing> thingPropertiesUpdateQueue = new ConcurrentLinkedQueue<>();
+
+    private static final int RECONNECT_AFTER_FAIL_TIME = 5000; // in ms
+    private final OwserverConnection owserverConnection;
+
+    private final List<OwfsDirectChannelConfig> channelConfigs = new ArrayList<>();
+
+    public OwserverBridgeHandler(Bridge bridge) {
+        super(bridge);
+        this.owserverConnection = new OwserverConnection(this);
+    }
+
+    public OwserverBridgeHandler(Bridge bridge, OwserverConnection owserverConnection) {
+        super(bridge);
+        this.owserverConnection = owserverConnection;
+    }
+
+    @Override
+    public void handleCommand(ChannelUID channelUID, Command command) {
+    }
+
+    @Override
+    public void initialize() {
+        Configuration configuration = getConfig();
+
+        if (configuration.get(CONFIG_ADDRESS) != null) {
+            owserverConnection.setHost((String) configuration.get(CONFIG_ADDRESS));
+        }
+        if (configuration.get(CONFIG_PORT) != null) {
+            owserverConnection.setPort(((BigDecimal) configuration.get(CONFIG_PORT)).intValue());
+        }
+
+        for (Channel channel : thing.getChannels()) {
+            if (CHANNEL_TYPE_UID_OWFS_NUMBER.equals(channel.getChannelTypeUID())
+                    || CHANNEL_TYPE_UID_OWFS_STRING.equals(channel.getChannelTypeUID())) {
+                final OwfsDirectChannelConfig channelConfig = channel.getConfiguration()
+                        .as(OwfsDirectChannelConfig.class);
+                if (channelConfig.initialize(channel.getUID(), channel.getAcceptedItemType())) {
+                    channelConfigs.add(channelConfig);
+                } else {
+                    logger.info("configuration mismatch: {}", channelConfig);
+                }
+            }
+        }
+
+        // makes it possible for unit tests to differentiate direct update and
+        // postponed update through the owserverConnection:
+        updateStatus(ThingStatus.UNKNOWN);
+
+        scheduler.execute(() -> {
+            synchronized (owserverConnection) {
+                owserverConnection.start();
+            }
+        });
+
+        if (refreshTask.isCancelled()) {
+            refreshTask = scheduler.scheduleWithFixedDelay(this::refresh, 1, 1000, TimeUnit.MILLISECONDS);
+        }
+    }
+
+    /**
+     * refresh all sensors on this bridge
+     */
+    private void refresh() {
+        try {
+            long now = System.currentTimeMillis();
+            if (!refreshable) {
+                logger.trace("refresh requested by thread ID {} denied, as not refresheable",
+                        Thread.currentThread().getId());
+                return;
+            }
+
+            // refresh thing channels
+            List<Thing> thingList = getThing().getThings();
+            int thingCount = thingList.size();
+            Iterator<Thing> childListIterator = thingList.iterator();
+            logger.trace("refreshTask with thread ID {} starts at {}, {} childs", Thread.currentThread().getId(), now,
+                    thingCount);
+            while (childListIterator.hasNext() && refreshable) {
+                Thing owThing = childListIterator.next();
+
+                logger.trace("refresh: getting handler for {} ({} to go)", owThing.getUID(), thingCount);
+                OwBaseThingHandler owHandler = (OwBaseThingHandler) owThing.getHandler();
+                if (owHandler != null) {
+                    if (owHandler.isRefreshable()) {
+                        logger.trace("{} initialized, refreshing", owThing.getUID());
+                        owHandler.refresh(OwserverBridgeHandler.this, now);
+                    } else {
+                        logger.trace("{} not initialized, skipping refresh", owThing.getUID());
+                    }
+                } else {
+                    logger.debug("{} handler missing", owThing.getUID());
+                }
+                thingCount--;
+            }
+
+            if (!refreshable) {
+                logger.trace("refresh aborted, as brige became non-refresheable.");
+                return;
+            }
+            refreshBridgeChannels(now);
+
+            // update thing properties (only one per refresh cycle)
+            if (!refreshable) {
+                logger.trace("refresh aborted, as brige became non-refresheable.");
+                return;
+            }
+            Thing updateThing = thingPropertiesUpdateQueue.poll();
+            if (updateThing != null) {
+                logger.trace("update: getting handler for {} ({} total in list)", updateThing.getUID(),
+                        thingPropertiesUpdateQueue.size());
+                OwBaseThingHandler owHandler = (OwBaseThingHandler) updateThing.getHandler();
+                if (owHandler != null) {
+                    try {
+                        owHandler.updateSensorProperties(this);
+                        owHandler.initialize();
+                        logger.debug("{} sucessfully updated properties, removing from property update list",
+                                updateThing.getUID());
+                    } catch (OwException e) {
+                        thingPropertiesUpdateQueue.add(updateThing);
+                        logger.debug("updating thing properties for {} failed: {}, adding to end of list",
+                                updateThing.getUID(), e.getMessage());
+                    }
+                } else {
+                    logger.debug("{} is missing handler, removing from property update list", updateThing.getUID());
+                }
+            }
+
+        } catch (RuntimeException e) {
+            // catching RuntimeException because scheduled tasks finish once an exception occurs
+            logger.error("refresh encountered exception of {}: {}, please report bug", e.getClass(), e.getMessage());
+        }
+    }
+
+    @Override
+    public void dispose() {
+        refreshable = false;
+        if (!refreshTask.isCancelled()) {
+            refreshTask.cancel(false);
+        }
+        owserverConnection.stop();
+    }
+
+    /**
+     * schedules a thing for updating the thing properties
+     *
+     * @param thing the thing to be updated
+     */
+    public void scheduleForPropertiesUpdate(Thing thing) {
+        thingPropertiesUpdateQueue.add(thing);
+    }
+
+    /**
+     * get all sensors attached to this bridge
+     *
+     * @return a list of all sensor-IDs
+     */
+    public List<SensorId> getDirectory(String basePath) throws OwException {
+        synchronized (owserverConnection) {
+            return owserverConnection.getDirectory(basePath);
+        }
+    }
+
+    /**
+     * check the presence of a sensor on the bus
+     *
+     * @param sensorId the sensor's full ID
+     * @return ON if present, OFF if missing
+     * @throws OwException
+     */
+    public State checkPresence(SensorId sensorId) throws OwException {
+        synchronized (owserverConnection) {
+            return owserverConnection.checkPresence(sensorId.getFullPath());
+        }
+    }
+
+    /**
+     * get a sensors type string
+     *
+     * @param sensorId the sensor's full ID
+     * @return a String containing the sensor type
+     * @throws OwException
+     */
+    public OwSensorType getType(SensorId sensorId) throws OwException {
+        OwSensorType sensorType = OwSensorType.UNKNOWN;
+        synchronized (owserverConnection) {
+            try {
+                sensorType = OwSensorType.valueOf(owserverConnection.readString(sensorId + "/type"));
+            } catch (IllegalArgumentException e) {
+            }
+        }
+        return sensorType;
+    }
+
+    /**
+     * get full sensor information stored in pages (not available on all sensors)
+     *
+     * @param sensorId the sensor's full ID
+     * @return a OwPageBuffer object containing the requested information
+     * @throws OwException
+     */
+    public OwPageBuffer readPages(SensorId sensorId) throws OwException {
+        synchronized (owserverConnection) {
+            return owserverConnection.readPages(sensorId.getFullPath());
+        }
+    }
+
+    /**
+     * read a single decimal value from a sensor
+     *
+     * @param sensorId the sensor's full ID
+     * @param parameter device parameters needed for this request
+     * @return a DecimalType
+     * @throws OwException
+     */
+    public State readDecimalType(SensorId sensorId, OwserverDeviceParameter parameter) throws OwException {
+        synchronized (owserverConnection) {
+            return owserverConnection.readDecimalType(parameter.getPath(sensorId));
+        }
+    }
+
+    /**
+     * read a BitSet value from a sensor
+     *
+     * @param sensorId the sensor's full ID
+     * @param parameter device parameters needed for this request
+     * @return a BitSet
+     * @throws OwException
+     */
+    public BitSet readBitSet(SensorId sensorId, OwserverDeviceParameter parameter) throws OwException {
+        return BitSet.valueOf(new long[] { ((DecimalType) readDecimalType(sensorId, parameter)).longValue() });
+    }
+
+    /**
+     * read an array of decimal values from a sensor
+     *
+     * @param sensorId the sensor's full ID
+     * @param parameter device parameters needed for this request
+     * @return a list of DecimalType values
+     * @throws OwException
+     */
+    public List<State> readDecimalTypeArray(SensorId sensorId, OwserverDeviceParameter parameter) throws OwException {
+        synchronized (owserverConnection) {
+            return owserverConnection.readDecimalTypeArray(parameter.getPath(sensorId));
+        }
+    }
+
+    /**
+     * read a string from a sensor
+     *
+     * @param sensorId the sensor's full ID
+     * @param parameter device parameters needed for this request
+     * @return a String
+     * @throws OwException
+     */
+    public String readString(SensorId sensorId, OwserverDeviceParameter parameter) throws OwException {
+        synchronized (owserverConnection) {
+            return owserverConnection.readString(parameter.getPath(sensorId));
+        }
+    }
+
+    /**
+     * writes a DecimalType to the sensor
+     *
+     * @param sensorId the sensor's full ID
+     * @param parameter device parameters needed for this request
+     * @throws OwException
+     */
+    public void writeDecimalType(SensorId sensorId, OwserverDeviceParameter parameter, DecimalType value)
+            throws OwException {
+        synchronized (owserverConnection) {
+            owserverConnection.writeDecimalType(parameter.getPath(sensorId), value);
+        }
+    }
+
+    /**
+     * writes a BitSet to the sensor
+     *
+     * @param sensorId the sensor's full ID
+     * @param parameter device parameters needed for this request
+     * @throws OwException
+     */
+    public void writeBitSet(SensorId sensorId, OwserverDeviceParameter parameter, BitSet value) throws OwException {
+        writeDecimalType(sensorId, parameter, new DecimalType(value.toLongArray()[0]));
+    }
+
+    /**
+     * returns if this bridge is refreshable
+     *
+     * @return true if implementation reports communication ready
+     */
+    public boolean isRefreshable() {
+        return refreshable;
+    }
+
+    /**
+     * updates the thing status with the current connection state
+     *
+     * @param connectionState current connection state
+     */
+    public void reportConnectionState(OwserverConnectionState connectionState) {
+        logger.debug("Updating owserverconnectionstate to {}", connectionState);
+        switch (connectionState) {
+            case FAILED:
+                refreshable = false;
+                updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR);
+                scheduler.schedule(() -> {
+                    synchronized (owserverConnection) {
+                        owserverConnection.start();
+                    }
+                }, RECONNECT_AFTER_FAIL_TIME, TimeUnit.MILLISECONDS);
+                break;
+            case STOPPED:
+                refreshable = false;
+                break;
+            case OPENED:
+            case CLOSED:
+                refreshable = true;
+                updateStatus(ThingStatus.ONLINE, ThingStatusDetail.NONE);
+                break;
+        }
+    }
+
+    /**
+     * refreshes channels attached to the bridge
+     *
+     * @param now current time
+     */
+    public void refreshBridgeChannels(long now) {
+        for (OwfsDirectChannelConfig channelConfig : channelConfigs) {
+            if (now > channelConfig.lastRefresh + channelConfig.refreshCycle) {
+                State value;
+                try {
+                    synchronized (owserverConnection) {
+                        if (channelConfig.acceptedItemType.equals("String")) {
+                            value = new StringType(owserverConnection.readString(channelConfig.path));
+                        } else if (channelConfig.acceptedItemType.equals("Number")) {
+                            value = owserverConnection.readDecimalType(channelConfig.path);
+                        } else {
+                            logger.debug("mismatched configuration, itemType unknown for channel {}",
+                                    channelConfig.channelUID);
+                            continue;
+                        }
+                    }
+
+                    final ChannelUID channelUID = channelConfig.channelUID;
+                    if (channelUID == null) {
+                        throw new OwException("channelUID is null");
+                    }
+                    updateState(channelUID, value);
+                    logger.trace("updated {} to {}", channelConfig.channelUID, value);
+
+                    channelConfig.lastRefresh = now;
+                } catch (OwException e) {
+                    logger.debug("could not read direct channel {}: {}", channelConfig.channelUID, e.getMessage());
+                }
+            }
+        }
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/owserver/OwfsDirectChannelConfig.java

@@ -0,0 +1,44 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.owserver;
+
+import java.math.BigDecimal;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.openhab.core.thing.ChannelUID;
+
+/**
+ * The {@link OwfsDirectChannelConfig} defines config for owfsdirect channels
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class OwfsDirectChannelConfig {
+    public String path = "";
+    public BigDecimal refresh = new BigDecimal(300);
+
+    public long lastRefresh = 0;
+    public int refreshCycle = 300;
+
+    public @Nullable ChannelUID channelUID;
+    public String acceptedItemType = "";
+
+    public boolean initialize(ChannelUID channelUID, @Nullable String acceptedItemType) {
+        this.channelUID = channelUID;
+        this.acceptedItemType = acceptedItemType != null ? acceptedItemType : "";
+        refreshCycle = refresh.intValue() * 1000;
+
+        return !path.isEmpty();
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/owserver/OwserverConnection.java

@@ -0,0 +1,518 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.owserver;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.EOFException;
+import java.io.IOException;
+import java.net.Socket;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.OwPageBuffer;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+import org.openhab.core.library.types.DecimalType;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.types.State;
+import org.openhab.core.types.UnDefType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link OwserverConnection} defines the protocol for connections to owservers.
+ *
+ * Data is requested by using one of the read / write methods. In case of errors, an {@link OwException}
+ * is thrown. All other exceptions are caught and handled.
+ *
+ * The data request methods follow a general pattern:
+ * * build the appropriate {@link OwserverPacket} for the request
+ * * call {@link #request(OwserverPacket)} to ask for the data, which then
+ * * uses {@link #write(OwserverPacket)} to get the request to the server and
+ * * uses {@link #read(boolean)} to get the result
+ *
+ * Hereby, the resulting packet is examined on an appropriate return code (!= -1) and whether the
+ * expected payload is attached. If not, an {@link OwException} is thrown.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+
+@NonNullByDefault
+public class OwserverConnection {
+    public static final int DEFAULT_PORT = 4304;
+    public static final int KEEPALIVE_INTERVAL = 1000;
+
+    private static final int CONNECTION_MAX_RETRY = 5;
+
+    private final Logger logger = LoggerFactory.getLogger(OwserverConnection.class);
+
+    private final OwserverBridgeHandler thingHandlerCallback;
+    private String owserverAddress = "";
+    private int owserverPort = DEFAULT_PORT;
+
+    private @Nullable Socket owserverSocket = null;
+    private @Nullable DataInputStream owserverInputStream = null;
+    private @Nullable DataOutputStream owserverOutputStream = null;
+    private OwserverConnectionState owserverConnectionState = OwserverConnectionState.STOPPED;
+    private boolean tryingConnectionRecovery = false;
+
+    // reset to 0 after successful request
+    private int connectionErrorCounter = 0;
+
+    public OwserverConnection(OwserverBridgeHandler owBaseBridgeHandler) {
+        this.thingHandlerCallback = owBaseBridgeHandler;
+    }
+
+    /**
+     * set the owserver host address
+     *
+     * @param address as String (IP or FQDN), defaults to localhost
+     */
+    public void setHost(String address) {
+        this.owserverAddress = address;
+        if (owserverConnectionState != OwserverConnectionState.STOPPED) {
+            close();
+        }
+    }
+
+    /**
+     * set the owserver port
+     *
+     * @param port defaults to 4304
+     */
+    public void setPort(int port) {
+        this.owserverPort = port;
+        if (owserverConnectionState != OwserverConnectionState.STOPPED) {
+            close();
+        }
+    }
+
+    /**
+     * start the owserver connection
+     */
+    public void start() {
+        logger.debug("Trying to (re)start OW server connection - previous state: {}",
+                owserverConnectionState.toString());
+        connectionErrorCounter = 0;
+        tryingConnectionRecovery = true;
+        boolean success = false;
+        do {
+            success = open();
+            if (success && owserverConnectionState != OwserverConnectionState.FAILED) {
+                tryingConnectionRecovery = false;
+            }
+        } while (!success && (owserverConnectionState != OwserverConnectionState.FAILED || tryingConnectionRecovery));
+    }
+
+    /**
+     * stop the owserver connection and report new {@link OwserverConnectionState} to {@link #thingHandlerCallback}.
+     */
+    public void stop() {
+        close();
+        owserverConnectionState = OwserverConnectionState.STOPPED;
+        thingHandlerCallback.reportConnectionState(owserverConnectionState);
+    }
+
+    /**
+     * list all devices on this owserver
+     *
+     * @return a list of device ids
+     */
+    public @NonNullByDefault({}) List<SensorId> getDirectory(String basePath) throws OwException {
+        OwserverPacket requestPacket = new OwserverPacket(OwserverMessageType.DIRALL, basePath);
+        OwserverPacket returnPacket = request(requestPacket);
+
+        if ((returnPacket.getReturnCode() != -1) && returnPacket.hasPayload()) {
+            return Arrays.stream(returnPacket.getPayloadString().split(",")).map(this::stringToSensorId)
+                    .filter(Objects::nonNull).collect(Collectors.toList());
+        } else {
+            throw new OwException("invalid of empty packet when requesting directory");
+        }
+    }
+
+    private @Nullable SensorId stringToSensorId(String s) {
+        try {
+            return new SensorId(s);
+        } catch (IllegalArgumentException e) {
+            return null;
+        }
+    }
+
+    /**
+     * check sensor presence
+     *
+     * Errors are caught and interpreted as sensor not present.
+     *
+     * @param path full owfs path to sensor
+     * @return OnOffType, ON=present, OFF=not present
+     */
+    public State checkPresence(String path) {
+        State returnValue = OnOffType.OFF;
+        try {
+            OwserverPacket requestPacket;
+            requestPacket = new OwserverPacket(OwserverMessageType.PRESENT, path, OwserverControlFlag.UNCACHED);
+
+            OwserverPacket returnPacket = request(requestPacket);
+            if (returnPacket.getReturnCode() == 0) {
+                returnValue = OnOffType.ON;
+            }
+
+        } catch (OwException e) {
+            returnValue = OnOffType.OFF;
+        }
+        logger.trace("presence {} : {}", path, returnValue);
+        return returnValue;
+    }
+
+    /**
+     * read a decimal type
+     *
+     * @param path full owfs path to sensor
+     * @return DecimalType if successful
+     * @throws OwException
+     */
+    public State readDecimalType(String path) throws OwException {
+        State returnState = UnDefType.UNDEF;
+        OwserverPacket requestPacket = new OwserverPacket(OwserverMessageType.READ, path);
+
+        OwserverPacket returnPacket = request(requestPacket);
+        if ((returnPacket.getReturnCode() != -1) && returnPacket.hasPayload()) {
+            try {
+                returnState = DecimalType.valueOf(returnPacket.getPayloadString().trim());
+            } catch (NumberFormatException e) {
+                throw new OwException("could not parse '" + returnPacket.getPayloadString().trim() + "' to a number");
+            }
+        } else {
+            throw new OwException("invalid or empty packet when requesting decimal type");
+        }
+
+        return returnState;
+    }
+
+    /**
+     * read a decimal type array
+     *
+     * @param path full owfs path to sensor
+     * @return a List of DecimalType values if successful
+     * @throws OwException
+     */
+    public List<State> readDecimalTypeArray(String path) throws OwException {
+        List<State> returnList = new ArrayList<>();
+        OwserverPacket requestPacket = new OwserverPacket(OwserverMessageType.READ, path);
+        OwserverPacket returnPacket = request(requestPacket);
+        if ((returnPacket.getReturnCode() != -1) && returnPacket.hasPayload()) {
+            Arrays.stream(returnPacket.getPayloadString().split(","))
+                    .forEach(v -> returnList.add(DecimalType.valueOf(v.trim())));
+        } else {
+            throw new OwException("invalid or empty packet when requesting decimal type array");
+        }
+
+        return returnList;
+    }
+
+    /**
+     * read a string
+     *
+     * @param path full owfs path to sensor
+     * @return requested String
+     * @throws OwException
+     */
+    public String readString(String path) throws OwException {
+        OwserverPacket requestPacket = new OwserverPacket(OwserverMessageType.READ, path);
+        OwserverPacket returnPacket = request(requestPacket);
+
+        if ((returnPacket.getReturnCode() != -1) && returnPacket.hasPayload()) {
+            return returnPacket.getPayloadString().trim();
+        } else {
+            throw new OwException("invalid or empty packet when requesting string type");
+        }
+    }
+
+    /**
+     * read all sensor pages
+     *
+     * @param path full owfs path to sensor
+     * @return page buffer
+     * @throws OwException
+     */
+    public OwPageBuffer readPages(String path) throws OwException {
+        OwserverPacket requestPacket = new OwserverPacket(OwserverMessageType.READ, path + "/pages/page.ALL");
+        OwserverPacket returnPacket = request(requestPacket);
+        if ((returnPacket.getReturnCode() != -1) && returnPacket.hasPayload()) {
+            return returnPacket.getPayload();
+        } else {
+            throw new OwException("invalid or empty packet when requesting pages");
+        }
+    }
+
+    /**
+     * write a DecimalType
+     *
+     * @param path full owfs path to the sensor
+     * @param value the value to write
+     * @throws OwException
+     */
+    public void writeDecimalType(String path, DecimalType value) throws OwException {
+        OwserverPacket requestPacket = new OwserverPacket(OwserverMessageType.WRITE, path);
+        requestPacket.appendPayload(String.valueOf(value));
+
+        // request method throws an OwException in case of issues...
+        OwserverPacket returnPacket = request(requestPacket);
+
+        logger.trace("wrote: {}, got: {} ", requestPacket, returnPacket);
+    }
+
+    /**
+     * process a request to the owserver
+     *
+     * @param requestPacket the request to be send
+     * @return the raw owserver answer
+     * @throws OwException
+     */
+    private OwserverPacket request(OwserverPacket requestPacket) throws OwException {
+        OwserverPacket returnPacket = new OwserverPacket(OwserverPacketType.RETURN);
+
+        // answer to value write is always empty
+        boolean payloadExpected = requestPacket.getMessageType() != OwserverMessageType.WRITE;
+
+        try {
+            // write request - error may be thrown
+            write(requestPacket);
+
+            // try to read data as long as we don't get any feedback and no error is thrown...
+            do {
+                if (requestPacket.getMessageType() == OwserverMessageType.PRESENT
+                        || requestPacket.getMessageType() == OwserverMessageType.NOP) {
+                    returnPacket = read(true);
+                } else {
+                    returnPacket = read(false);
+                }
+            } while (returnPacket.isPingPacket() || !(returnPacket.hasPayload() == payloadExpected));
+
+        } catch (OwException e) {
+            logger.debug("failed requesting {}->{} [{}]", requestPacket, returnPacket, e.getMessage());
+            throw e;
+        }
+
+        if (!returnPacket.hasControlFlag(OwserverControlFlag.PERSISTENCE)) {
+            logger.trace("closing connection because persistence was denied");
+            close();
+        }
+
+        // Success! Reset error counter.
+        connectionErrorCounter = 0;
+        return returnPacket;
+    }
+
+    /**
+     * open/reopen the connection to the owserver
+     *
+     * In case of issues, the connection is closed using {@link #closeOnError()} and false is returned.
+     * If the {@link #owserverConnectionState} is in STOPPED or FAILED, the method directly returns false.
+     *
+     * @return true if open
+     */
+    private boolean open() {
+        try {
+            if (owserverConnectionState == OwserverConnectionState.CLOSED || tryingConnectionRecovery) {
+                // open socket & set timeout to 3000ms
+                final Socket owserverSocket = new Socket(owserverAddress, owserverPort);
+                owserverSocket.setSoTimeout(3000);
+                this.owserverSocket = owserverSocket;
+
+                owserverInputStream = new DataInputStream(owserverSocket.getInputStream());
+                owserverOutputStream = new DataOutputStream(owserverSocket.getOutputStream());
+
+                owserverConnectionState = OwserverConnectionState.OPENED;
+                thingHandlerCallback.reportConnectionState(owserverConnectionState);
+
+                logger.debug("OW connection state: opened to {}:{}", owserverAddress, owserverPort);
+                return true;
+            } else if (owserverConnectionState == OwserverConnectionState.OPENED) {
+                // socket already open, clear input buffer
+                logger.trace("owServerConnection already open, skipping input buffer");
+                final DataInputStream owserverInputStream = this.owserverInputStream;
+                while (owserverInputStream != null) {
+                    if (owserverInputStream.skip(owserverInputStream.available()) == 0) {
+                        return true;
+                    }
+                }
+                logger.debug("input stream not available on skipping");
+                closeOnError();
+                return false;
+            } else {
+                return false;
+            }
+        } catch (IOException e) {
+            logger.debug("could not open owServerConnection to {}:{}: {}", owserverAddress, owserverPort,
+                    e.getMessage());
+            closeOnError();
+            return false;
+        }
+    }
+
+    /**
+     * close connection and report connection state to callback
+     */
+    private void close() {
+        this.close(true);
+    }
+
+    /**
+     * close the connection to the owserver instance.
+     *
+     * @param reportConnectionState true, if connection state shall be reported to callback
+     */
+    private void close(boolean reportConnectionState) {
+        final Socket owserverSocket = this.owserverSocket;
+        if (owserverSocket != null) {
+            try {
+                owserverSocket.close();
+                owserverConnectionState = OwserverConnectionState.CLOSED;
+                logger.debug("closed connection");
+            } catch (IOException e) {
+                owserverConnectionState = OwserverConnectionState.FAILED;
+                logger.warn("could not close connection: {}", e.getMessage());
+            }
+        }
+
+        this.owserverSocket = null;
+        this.owserverInputStream = null;
+        this.owserverOutputStream = null;
+
+        if (reportConnectionState) {
+            thingHandlerCallback.reportConnectionState(owserverConnectionState);
+        }
+    }
+
+    /**
+     * check if the connection is dead and close it
+     */
+    private void checkConnection() {
+        try {
+            int pid = ((DecimalType) readDecimalType("/system/process/pid")).intValue();
+            logger.debug("read pid {} -> connection still alive", pid);
+            return;
+        } catch (OwException e) {
+            closeOnError();
+        }
+    }
+
+    /**
+     * close the connection to the owserver instance after an error occured.
+     * if {@link #CONNECTION_MAX_RETRY} is exceeded, {@link #owserverConnectionState} is set to FAILED
+     * and state is reported to callback.
+     */
+    private void closeOnError() {
+        connectionErrorCounter++;
+        close(false);
+        if (connectionErrorCounter > CONNECTION_MAX_RETRY) {
+            logger.debug("OW connection state: set to failed as max retries exceeded.");
+            owserverConnectionState = OwserverConnectionState.FAILED;
+            tryingConnectionRecovery = false;
+            thingHandlerCallback.reportConnectionState(owserverConnectionState);
+        } else if (!tryingConnectionRecovery) {
+            // as close did not report connections state and we are not trying to recover ...
+            thingHandlerCallback.reportConnectionState(owserverConnectionState);
+        }
+    }
+
+    /**
+     * write to the owserver
+     *
+     * In case of issues, the connection is closed using {@link #closeOnError()} and an
+     * {@link OwException} is thrown.
+     *
+     * @param requestPacket data to write
+     * @throws OwException
+     */
+    private void write(OwserverPacket requestPacket) throws OwException {
+        try {
+            if (open()) {
+                requestPacket.setControlFlags(OwserverControlFlag.PERSISTENCE);
+                final DataOutputStream owserverOutputStream = this.owserverOutputStream;
+                if (owserverOutputStream != null) {
+                    owserverOutputStream.write(requestPacket.toBytes());
+                    logger.trace("wrote: {}", requestPacket);
+                } else {
+                    logger.debug("output stream not available on write");
+                    closeOnError();
+                    throw new OwException("I/O Error: output stream not available on write");
+                }
+            } else {
+                // was not opened
+                throw new OwException("I/O error: could not open connection to send request packet");
+            }
+        } catch (IOException e) {
+            closeOnError();
+            logger.debug("couldn't send {}, {}", requestPacket, e.getMessage());
+            throw new OwException("I/O Error: exception while sending request packet - " + e.getMessage());
+        }
+    }
+
+    /**
+     * read from owserver
+     *
+     * In case of errors (which may also be due to an erroneous path), the connection is checked and potentially closed
+     * using {@link #checkConnection()}.
+     *
+     * @param noTimeoutException retry in case of read time outs instead of exiting with an {@link OwException}.
+     * @return the read packet
+     * @throws OwException
+     */
+    private OwserverPacket read(boolean noTimeoutException) throws OwException {
+        OwserverPacket returnPacket = new OwserverPacket(OwserverPacketType.RETURN);
+        final DataInputStream owserverInputStream = this.owserverInputStream;
+        if (owserverInputStream != null) {
+            DataInputStream inputStream = owserverInputStream;
+            try {
+                returnPacket = new OwserverPacket(inputStream, OwserverPacketType.RETURN);
+            } catch (EOFException e) {
+                // Read suddenly ended ....
+                logger.warn("EOFException: exception while reading packet - {}", e.getMessage());
+                checkConnection();
+                throw new OwException("EOFException: exception while reading packet - " + e.getMessage());
+            } catch (OwException e) {
+                // Some other issue
+                checkConnection();
+                throw e;
+            } catch (IOException e) {
+                // Read time out
+                if (e.getMessage().equals("Read timed out") && noTimeoutException) {
+                    logger.trace("timeout - setting error code to -1");
+                    // will lead to re-try reading in request method!!!
+                    returnPacket.setPayload("timeout");
+                    returnPacket.setReturnCode(-1);
+                } else {
+                    // Other I/O issue
+                    checkConnection();
+                    throw new OwException("I/O error: exception while reading packet - " + e.getMessage());
+                }
+            }
+            logger.trace("read: {}", returnPacket);
+        } else {
+            logger.debug("input stream not available on read");
+            closeOnError();
+            throw new OwException("I/O Error: input stream not available on read");
+        }
+
+        return returnPacket;
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/owserver/OwserverConnectionState.java

@@ -0,0 +1,41 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.owserver;
+
+/**
+ * The {@link OwserverConnectionState} defines the state for connections to owservers
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+
+public enum OwserverConnectionState {
+    /**
+     * The {@link OwserverConnection} is being torn down (mostly due to dispose of handler).
+     * No refresh, etc. are possible.
+     */
+    STOPPED,
+    /**
+     * The connection is open.
+     */
+    OPENED,
+    /**
+     * The connection is closed. On next read / write it will be opened.
+     */
+    CLOSED,
+    /**
+     * The connection is erroneous and was closed by the {@link OwserverConnection}. After due wait time, it
+     * is tried to reopen it by a scheduled task of
+     * {@link OwserverBridgeHandler#reportConnectionState(OwserverConnectionState)}.
+     */
+    FAILED
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/owserver/OwserverControlFlag.java

@@ -0,0 +1,57 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.owserver;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+
+/**
+ * The {@link OwserverControlFlag} provides the owserver protocol control flag
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+
+@NonNullByDefault
+public enum OwserverControlFlag {
+    UNCACHED(0x00000020),
+    SAFEMODE(0x00000010),
+    ALIAS(0x00000008),
+    PERSISTENCE(0x00000004),
+    BUS_RET(0x00000002),
+    DEVICE_DISPLAY(0x00000000),
+    OWNET(0x00000100);
+
+    private final int controlFlag;
+
+    OwserverControlFlag(int controlFlag) {
+        this.controlFlag = controlFlag;
+    }
+
+    /**
+     * get the this flag's numeric representation
+     *
+     * @return integer value of this flag
+     */
+    public int getValue() {
+        return controlFlag;
+    }
+
+    /**
+     * check if a this flag is set in the parameter
+     *
+     * @param controlFlags full control flag
+     * @return true if this flag is set in the parameter
+     */
+    public boolean isSet(int controlFlags) {
+        return (this.getValue() & controlFlags) == this.getValue();
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/owserver/OwserverDeviceParameter.java

@@ -0,0 +1,89 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.owserver;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.openhab.binding.onewire.internal.SensorId;
+
+/**
+ * The {@link OwserverDeviceParameter} device parameter definition for owserver bridge handler
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+
+@NonNullByDefault
+public class OwserverDeviceParameter {
+    private String prefix = "";
+    private String path = "";
+
+    /**
+     * device parameter for owserver bridge handler
+     *
+     * @param prefix path prefix (e.g. "uncached/")
+     * @param path path without sensor id (e.g. "/humidity")
+     */
+    public OwserverDeviceParameter(String prefix, String path) {
+        if (prefix.endsWith("/")) {
+            this.prefix = prefix.substring(0, prefix.length() - 1);
+        } else {
+            this.prefix = prefix;
+        }
+        if (path.startsWith("/")) {
+            this.path = path;
+        } else {
+            this.path = "/" + path;
+        }
+    }
+
+    /**
+     * device parameter for owserver bridge handler
+     *
+     * @param path path without sensor id (e.g. "/humidity")
+     */
+    public OwserverDeviceParameter(String path) {
+        this("", path);
+    }
+
+    /**
+     * get the full owfs path for a given sensor id
+     *
+     * @param sensorId
+     */
+    public String getPath(SensorId sensorId) {
+        return prefix + sensorId.getFullPath() + path;
+    }
+
+    @Override
+    public String toString() {
+        return prefix + "/sensorId" + path;
+    }
+
+    @Override
+    public int hashCode() {
+        return toString().hashCode();
+    }
+
+    @Override
+    public boolean equals(@Nullable Object o) {
+        if (o == this) {
+            return true;
+        }
+
+        if (!(o instanceof OwserverDeviceParameter)) {
+            return false;
+        }
+
+        return ((OwserverDeviceParameter) o).toString().equals(toString());
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/owserver/OwserverMessageType.java

@@ -0,0 +1,66 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.owserver;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+
+/**
+ * The {@link OwserverMessageType} provides the owserver protocol message type
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+
+@NonNullByDefault
+public enum OwserverMessageType {
+    ERROR(0x00000000),
+    NOP(0x00000001),
+    READ(0x00000002),
+    WRITE(0x00000003),
+    DIR(0x00000004),
+    SIZE(0x00000005),
+    PRESENT(0x00000006),
+    DIRALL(0x00000007),
+    GET(0x00000008),
+    DIRALLSLASH(0x00000009),
+    GETSLASH(0x0000000a);
+
+    private final int messageType;
+
+    OwserverMessageType(int messageType) {
+        this.messageType = messageType;
+    }
+
+    /**
+     * get the this message type's numeric representation
+     *
+     * @return integer value of this message type
+     */
+    public int getValue() {
+        return messageType;
+    }
+
+    /**
+     * return a new OwMessageType from an integer
+     *
+     * @param messageType the message type as integer
+     * @return OwMessageType
+     */
+    public static OwserverMessageType fromInt(int messageType) throws IllegalArgumentException {
+        for (OwserverMessageType value : values()) {
+            if (value.getValue() == messageType) {
+                return value;
+            }
+        }
+        throw new IllegalArgumentException();
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/owserver/OwserverPacket.java

@@ -0,0 +1,347 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.owserver;
+
+import java.io.DataInputStream;
+import java.io.EOFException;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.OwPageBuffer;
+
+/**
+ * The {@link OwserverPacket} class provides a single packet for communication with the owserver
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+
+@NonNullByDefault
+public class OwserverPacket {
+    public static final int PROTOCOL_VERSION = 0;
+
+    // 6x4 bytes
+    public static final int HEADER_SIZE = 24;
+    protected int payloadLength = 0;
+
+    protected final OwserverPacketType packetType;
+
+    protected int protocolVersion = PROTOCOL_VERSION;
+    protected int controlFlags;
+    protected int packetCode = 0;
+    protected int packetSize = 0;
+    protected int payloadOffset = 0;
+
+    protected byte payload[] = new byte[0];
+
+    /**
+     * constructor for new packet
+     *
+     * @param packetType packetType;
+     */
+    public OwserverPacket(OwserverPacketType packetType) {
+        this.packetType = packetType;
+        setControlFlags(OwserverControlFlag.OWNET, OwserverControlFlag.DEVICE_DISPLAY);
+    }
+
+    /**
+     * constructor for reading packet from stream
+     *
+     * @param owInputStream input stream to read from
+     * @throws IOException
+     * @throws OwExeption
+     */
+    public OwserverPacket(DataInputStream owInputStream, OwserverPacketType packetType)
+            throws IOException, OwException, EOFException {
+        this.packetType = packetType;
+
+        // header
+        protocolVersion = owInputStream.readInt();
+        payloadLength = owInputStream.readInt();
+        packetCode = owInputStream.readInt();
+        controlFlags = owInputStream.readInt();
+        packetSize = owInputStream.readInt();
+        payloadOffset = owInputStream.readInt();
+
+        // payload
+        if (payloadLength != -1) {
+            if ((protocolVersion != PROTOCOL_VERSION) || !OwserverControlFlag.OWNET.isSet(controlFlags)) {
+                throw new OwException("invalid data read");
+            }
+            if (payloadLength > 0) {
+                payload = new byte[payloadLength];
+                owInputStream.readFully(payload, 0, payloadLength);
+            }
+        }
+    }
+
+    /**
+     * constructor for a new request message
+     *
+     * @param owMessageType
+     * @param path
+     * @param owControlFlags
+     */
+    public OwserverPacket(OwserverMessageType owMessageType, String path, OwserverControlFlag... owControlFlags) {
+        this(OwserverPacketType.REQUEST);
+        packetCode = owMessageType.getValue();
+        setPayload(path);
+        setTemperatureScale(OwserverTemperatureScale.CENTIGRADE);
+        setControlFlags(owControlFlags);
+        if (owMessageType == OwserverMessageType.WRITE) {
+            packetSize = 0x00000000;
+        } else {
+            packetSize = 0x00010000;
+        }
+    }
+
+    /**
+     * set one or more control flags for this packet
+     *
+     * @param flags one or more flags as OwControlFlag
+     */
+    public void setControlFlags(OwserverControlFlag... flags) {
+        for (int i = 0; i < flags.length; i++) {
+            controlFlags |= flags[i].getValue();
+        }
+    }
+
+    /**
+     * check if a certain flag is set in this packet
+     *
+     * @param flag flag to be tested
+     * @return true if flag is set
+     */
+    public boolean hasControlFlag(OwserverControlFlag flag) {
+        return flag.isSet(controlFlags);
+    }
+
+    /**
+     * set this packet's pressure scale
+     *
+     * @param pressureScale
+     */
+    public void setPressureScale(OwserverPressureScale pressureScale) {
+        controlFlags = pressureScale.setFlag(controlFlags);
+    }
+
+    /**
+     * get this packets pressure scale
+     *
+     * @return
+     */
+    public OwserverPressureScale getPressureScale() {
+        return OwserverPressureScale.getFlag(controlFlags);
+    }
+
+    /**
+     * set this packet's temperature scale
+     *
+     * @param pressureScale
+     */
+    public void setTemperatureScale(OwserverTemperatureScale temperatureScale) {
+        controlFlags = temperatureScale.setFlag(controlFlags);
+    }
+
+    /**
+     * get this packets temperature scale
+     *
+     * @return
+     */
+    public OwserverTemperatureScale getTemperatureScale() {
+        return OwserverTemperatureScale.getFlag(controlFlags);
+    }
+
+    /**
+     * set (or replace) this packet's payload from a string
+     *
+     * @param payload string representation of the payload
+     */
+    public void setPayload(String payload) {
+        byte[] bytes = payload.getBytes();
+        payloadLength = bytes.length + 1;
+        this.payload = new byte[payloadLength];
+        System.arraycopy(bytes, 0, this.payload, 0, bytes.length);
+    }
+
+    /**
+     * append to this packet's payload from a string
+     *
+     * @param payload string representation of the payload to append
+     */
+    public void appendPayload(String payload) {
+        byte appendBytes[] = payload.getBytes();
+
+        byte[] fullPayload = new byte[this.payload.length + appendBytes.length];
+        System.arraycopy(this.payload, 0, fullPayload, 0, this.payload.length);
+        System.arraycopy(appendBytes, 0, fullPayload, this.payload.length, appendBytes.length);
+
+        this.packetSize += appendBytes.length;
+        this.payloadLength = fullPayload.length;
+        this.payload = fullPayload;
+    }
+
+    /**
+     * set this packet payload from a OwPageBuffer
+     *
+     * @param payload string representation of the payload
+     */
+    public void setPayload(OwPageBuffer payload) {
+        byte[] bytes = payload.getBytes();
+        payloadLength = bytes.length + 1;
+        this.payload = new byte[payloadLength];
+        System.arraycopy(bytes, 0, this.payload, 0, bytes.length);
+    }
+
+    /**
+     * get the payload of this packet
+     *
+     * @return string representation of this packet's payload
+     */
+    public String getPayloadString() {
+        if (payloadLength > 0) {
+            // already null terminated strings skip the termination character
+            if (payload[payloadLength - 1] == 0) {
+                return new String(payload, 0, payloadLength - 1);
+            } else {
+                return new String(payload, 0, payloadLength);
+            }
+        } else {
+            return "";
+        }
+    }
+
+    /**
+     * set this packet's return code (0 is ok)
+     *
+     * @param returnCode an integer
+     */
+    public void setReturnCode(int returnCode) {
+        if (packetType == OwserverPacketType.RETURN) {
+            this.packetCode = returnCode;
+        } else {
+            throw new IllegalStateException("setting return code not allowed in REQUEST packets");
+        }
+    }
+
+    /**
+     * get this packet's return code (0 is ok)
+     *
+     * @return
+     */
+    public int getReturnCode() {
+        if (packetType == OwserverPacketType.RETURN) {
+            return packetCode;
+        } else {
+            throw new IllegalStateException("getting return code not allowed in REQUEST packets");
+        }
+    }
+
+    /**
+     * set this packet's message type
+     *
+     * @param messageType
+     */
+    public void setMessageType(OwserverMessageType messageType) {
+        if (packetType == OwserverPacketType.REQUEST) {
+            packetCode = messageType.getValue();
+        } else {
+            throw new IllegalStateException("setting message type not allowed in RETURN packets");
+        }
+    }
+
+    /**
+     * get this packets message type
+     *
+     * @return
+     */
+    public OwserverMessageType getMessageType() {
+        if (packetType == OwserverPacketType.REQUEST) {
+            return OwserverMessageType.fromInt(packetCode);
+        } else {
+            throw new IllegalStateException("getting message type not allowed in RETURN packets");
+        }
+    }
+
+    /**
+     * check if packed is valid return packet
+     *
+     * @return true if valid
+     */
+    public boolean isValidReturnPacket() {
+        return (packetCode == 0 && packetType == OwserverPacketType.RETURN);
+    }
+
+    /**
+     * check if packed is valid return packet
+     *
+     * @return true if valid
+     */
+    public boolean isPingPacket() {
+        return (payloadLength == -1 && packetType == OwserverPacketType.RETURN);
+    }
+
+    /**
+     * get the payload of this packet
+     *
+     * @return OwPageBuffer with this packet's payload
+     */
+    public OwPageBuffer getPayload() {
+        OwPageBuffer byteBuffer = new OwPageBuffer(payload);
+        return byteBuffer;
+    }
+
+    /**
+     * check if this packet has a payload
+     *
+     * @return true if payload present
+     */
+    public boolean hasPayload() {
+        return (payloadLength > 0);
+    }
+
+    /**
+     * convert this packet to an array of bytes
+     *
+     * @return array of bytes
+     */
+    public byte[] toBytes() {
+        ByteBuffer byteBuffer = ByteBuffer.allocate(HEADER_SIZE + payloadLength);
+        byteBuffer.putInt(protocolVersion);
+        byteBuffer.putInt(payloadLength);
+        byteBuffer.putInt(packetCode);
+        byteBuffer.putInt(controlFlags);
+        byteBuffer.putInt(packetSize);
+        byteBuffer.putInt(payloadOffset);
+        if (payloadLength > 0) {
+            byteBuffer.put(payload);
+        }
+
+        return byteBuffer.array();
+    }
+
+    @Override
+    public String toString() {
+        String prefix;
+
+        if (packetType == OwserverPacketType.RETURN) {
+            prefix = String.format("return code %d", packetCode);
+        } else {
+            prefix = String.format("messageType %s", OwserverMessageType.fromInt(packetCode));
+        }
+
+        return String.format("%s, size %d, controlFlags 0x%08x, payload '%s'", prefix, HEADER_SIZE + payloadLength,
+                controlFlags, getPayloadString().replaceAll("\\p{C}", "?"));
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/owserver/OwserverPacketType.java

@@ -0,0 +1,24 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.owserver;
+
+/**
+ * The {@link OwserverPacketType} defines owserver packet types
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+
+public enum OwserverPacketType {
+    REQUEST,
+    RETURN
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/owserver/OwserverPressureScale.java

@@ -0,0 +1,73 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.owserver;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+
+/**
+ * The {@link OwserverPressureScale} provides the owserver protocol pressure scale flags
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+
+@NonNullByDefault
+public enum OwserverPressureScale {
+    MILLIBAR(0x00000000),
+    ATM(0x00040000),
+    MMHG(0x00080000),
+    INHG(0x000C0000),
+    PSI(0x00100000),
+    PASCAL(0x00140000);
+
+    private static final int CLEAR_MASK = 0x001C0000;
+    private final int flag;
+
+    OwserverPressureScale(int flag) {
+        this.flag = flag;
+    }
+
+    /**
+     * get numeric value of this flag
+     *
+     * @return
+     */
+    public int getValue() {
+        return flag;
+    }
+
+    /**
+     * set this flag in a set of given flags
+     *
+     * @param flags aggregated flags
+     * @return parameter with this flag set
+     */
+    public int setFlag(int flags) {
+        return (flags & ~CLEAR_MASK) | this.getValue();
+    }
+
+    /**
+     * get the pressure scale flag from a given set of flags
+     *
+     * @param flags set of flags
+     * @return pressure scale flag
+     * @throws IllegalArgumentException
+     */
+    public static OwserverPressureScale getFlag(int flags) throws IllegalArgumentException {
+        for (OwserverPressureScale value : values()) {
+            if (value.getValue() == (flags & CLEAR_MASK)) {
+                return value;
+            }
+        }
+        throw new IllegalArgumentException("Pressure scale flag not found");
+    }
+}

bundles/org.openhab.binding.onewire/src/main/java/org/openhab/binding/onewire/internal/owserver/OwserverTemperatureScale.java

@@ -0,0 +1,76 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal.owserver;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+
+/**
+ * The {@link OwserverTemperatureScale} provides the owserver protocol temperature scale flags
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+
+@NonNullByDefault
+public enum OwserverTemperatureScale {
+    CENTIGRADE(0x00000000),
+    FAHRENHEIT(0x00010000),
+    KELVIN(0x00020000),
+    RANKINE(0x00030000);
+
+    private static final int CLEAR_MASK = 0x00030000;
+    private final int flag;
+
+    OwserverTemperatureScale(int flag) {
+        this.flag = flag;
+    }
+
+    /**
+     * get numeric value of this flag
+     *
+     * @return
+     */
+    public int getValue() {
+        return flag;
+    }
+
+    /**
+     * set this flag in a set of given flags
+     *
+     * @param flags aggregated flags
+     * @return parameter with this flag set
+     */
+    public int setFlag(int flags) {
+        int tempFlags = flags;
+        tempFlags &= ~CLEAR_MASK;
+        tempFlags |= this.getValue();
+        return tempFlags;
+    }
+
+    /**
+     * get the temperature scale flag from a given set of flags
+     *
+     * @param flags set of flags
+     * @return temperature scale flag
+     * @throws IllegalArgumentException
+     */
+    public static OwserverTemperatureScale getFlag(int flags) {
+        int tempFlags = flags;
+        tempFlags &= CLEAR_MASK;
+        for (OwserverTemperatureScale value : values()) {
+            if (value.getValue() == tempFlags) {
+                return value;
+            }
+        }
+        return CENTIGRADE;
+    }
+}

bundles/org.openhab.binding.onewire/src/main/resources/OH-INF/binding/binding.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<binding:binding id="onewire" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:binding="https://openhab.org/schemas/binding/v1.0.0"
+	xsi:schemaLocation="https://openhab.org/schemas/binding/v1.0.0 https://openhab.org/schemas/binding-1.0.0.xsd">
+	<name>OneWire Binding</name>
+	<description>This is the binding for OneWire.</description>
+	<author>Jan N. Klug</author>
+</binding:binding>

bundles/org.openhab.binding.onewire/src/main/resources/OH-INF/config/config.xml

@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<config-description:config-descriptions
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:config-description="https://openhab.org/schemas/config-description/v1.0.0"
+	xsi:schemaLocation="https://openhab.org/schemas/config-description/v1.0.0 https://openhab.org/schemas/config-description-1.0.0.xsd">
+	<config-description uri="thing-type:onewire:basethingconfig">
+		<parameter name="id" type="text">
+			<label>Sensor ID</label>
+			<description>Sensor ID in format: xx.xxxxxxxxxxxx or a full path including hubs/branches</description>
+			<required>true</required>
+		</parameter>
+		<parameter name="refresh" type="integer" min="1">
+			<label>Refresh Time</label>
+			<description>Time in seconds after which the thing is refreshed</description>
+			<default>300</default>
+			<unitLabel>s</unitLabel>
+			<required>false</required>
+		</parameter>
+	</config-description>
+	<config-description uri="thing-type:onewire:mstxconfig">
+		<parameter name="id" type="text">
+			<label>Sensor ID</label>
+			<description>Sensor ID in format: xx.xxxxxxxxxxxx or a full path including hubs/branches</description>
+			<required>true</required>
+		</parameter>
+		<parameter name="refresh" type="integer" min="1">
+			<label>Refresh Time</label>
+			<description>Time in seconds after which the thing is refreshed</description>
+			<default>300</default>
+			<unitLabel>s</unitLabel>
+			<required>false</required>
+		</parameter>
+		<parameter name="manualsensor" type="text">
+			<label>Manual Sensor Type</label>
+			<description>Overrides detected sensor type</description>
+			<options>
+				<option value="DS2438">Generic</option>
+				<option value="MS_TH">MS-TH</option>
+				<option value="MS_TV">MS-TV</option>
+				<option value="MS_TL">MS-TL</option>
+				<option value="MS_TC">MS-TC</option>
+			</options>
+			<limitToOptions>true</limitToOptions>
+			<required>false</required>
+			<advanced>true</advanced>
+		</parameter>
+	</config-description>
+</config-description:config-descriptions>

bundles/org.openhab.binding.onewire/src/main/resources/OH-INF/thing/bae09x.xml

@@ -0,0 +1,168 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<thing:thing-descriptions bindingId="onewire"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:thing="https://openhab.org/schemas/thing-description/v1.0.0"
+	xsi:schemaLocation="https://openhab.org/schemas/thing-description/v1.0.0 https://openhab.org/schemas/thing-description-1.0.0.xsd">
+	<thing-type id="bae091x">
+		<supported-bridge-type-refs>
+			<bridge-type-ref id="owserver"/>
+		</supported-bridge-type-refs>
+		<label>Multisensor BAE0910</label>
+		<description>1-wire multisensor (BAE0910-based)</description>
+		<properties>
+			<property name="sensorCount">1</property>
+		</properties>
+		<config-description>
+			<parameter name="id" type="text">
+				<label>Sensor ID</label>
+				<description>Sensor ID in format: xx.xxxxxxxxxxxx)</description>
+				<required>true</required>
+			</parameter>
+			<parameter name="refresh" type="integer" min="1">
+				<label>Refresh Time</label>
+				<description>Time in seconds after which the thing is refreshed</description>
+				<default>300</default>
+				<unitLabel>s</unitLabel>
+			</parameter>
+			<parameter name="pin1" type="text">
+				<label>Pin 1 Mode Configuration</label>
+				<options>
+					<option value="disabled">disabled</option>
+					<option value="counter">Counter</option>
+				</options>
+				<default>counter</default>
+				<limitToOptions>true</limitToOptions>
+			</parameter>
+			<parameter name="pin2" type="text">
+				<label>Pin 2 Mode Configuration</label>
+				<options>
+					<option value="disabled">disabled</option>
+					<option value="output">Digital Output</option>
+					<option value="pwm">Software PWM 4</option>
+				</options>
+				<default>output</default>
+				<limitToOptions>true</limitToOptions>
+			</parameter>
+			<parameter name="pin6" type="text">
+				<label>Pin 6 Mode Configuration</label>
+				<options>
+					<option value="disabled">disabled</option>
+					<option value="pio">PIO</option>
+					<option value="pwm">Software PWM 3</option>
+				</options>
+				<default>pio</default>
+				<limitToOptions>true</limitToOptions>
+			</parameter>
+			<parameter name="pin7" type="text">
+				<label>Pin 7 Mode Configuration</label>
+				<options>
+					<option value="disabled">disabled</option>
+					<option value="analog">Analog Input</option>
+					<option value="output">Digital Output</option>
+					<option value="pwm">Hardware PWM 2</option>
+				</options>
+				<default>analog</default>
+				<limitToOptions>true</limitToOptions>
+			</parameter>
+			<parameter name="pin8" type="text">
+				<label>Pin 8 Mode Configuration</label>
+				<options>
+					<option value="disabled">disabled</option>
+					<option value="input">Digital Input</option>
+					<option value="output">Digital Output</option>
+					<option value="pwm">Hardware PWM 1</option>
+				</options>
+				<default>output</default>
+				<limitToOptions>true</limitToOptions>
+			</parameter>
+		</config-description>
+	</thing-type>
+	<!-- PWM Channels -->
+	<channel-type id="bae-pwm-frequency">
+		<item-type>Number:Frequency</item-type>
+		<label>Frequency</label>
+		<description>Frequency of PWM output in Hz</description>
+		<config-description>
+			<parameter name="prescaler" type="integer">
+				<label>Range</label>
+				<description>defines the frequency range of PWM output</description>
+				<options>
+					<option value="0">245 Hz - 8 MHz</option>
+					<option value="1">123 Hz - 4 MHz</option>
+					<option value="2">62 Hz - 2 MHz</option>
+					<option value="3">31 Hz - 1 MHz</option>
+					<option value="4">16 Hz - 500 kHz</option>
+					<option value="5">8 Hz - 250 kHz</option>
+					<option value="6">4 Hz - 125 kHz</option>
+					<option value="7">2 Hz - 62.5 kHz</option>
+				</options>
+				<default>0</default>
+				<limitToOptions>true</limitToOptions>
+			</parameter>
+			<parameter name="reversePolarity" type="boolean">
+				<label>Reverse Polarity</label>
+				<default>false</default>
+			</parameter>
+		</config-description>
+	</channel-type>
+	<channel-type id="bae-pwm-duty">
+		<item-type>Number:Dimensionless</item-type>
+		<label>Duty Cycle</label>
+		<description>Duty cycle of PWM output in %</description>
+	</channel-type>
+	<!-- Digital Channels -->
+	<channel-type id="bae-pio">
+		<item-type>Switch</item-type>
+		<label>PIO</label>
+		<description>Programmable I/O channel</description>
+		<config-description>
+			<parameter name="mode" type="text">
+				<label>Mode</label>
+				<options>
+					<option value="input">Input</option>
+					<option value="output">Output</option>
+				</options>
+				<default>input</default>
+				<limitToOptions>true</limitToOptions>
+			</parameter>
+			<parameter name="pulldevice" type="text">
+				<label>Pull-Up/Pull-Down Resistor</label>
+				<options>
+					<option value="disabled">disabled</option>
+					<option value="pullup">Pull-Up</option>
+					<option value="pulldown">Pull-Down</option>
+				</options>
+				<default>disabled</default>
+				<limitToOptions>true</limitToOptions>
+			</parameter>
+		</config-description>
+	</channel-type>
+	<channel-type id="bae-do">
+		<item-type>Switch</item-type>
+		<label>Digital Out</label>
+	</channel-type>
+	<channel-type id="bae-di">
+		<item-type>Switch</item-type>
+		<label>Digital In</label>
+	</channel-type>
+	<!-- Analog In (ADC) -->
+	<channel-type id="bae-analog">
+		<item-type>Number:ElectricPotential</item-type>
+		<label>Analog Input</label>
+		<description>Analog input (ADC)</description>
+		<state readOnly="true" pattern="%.1f %unit%"/>
+		<config-description>
+			<parameter name="hires" type="boolean">
+				<label>Hires</label>
+				<description>High resolution Mode (10bit)</description>
+				<default>false</default>
+			</parameter>
+		</config-description>
+	</channel-type>
+	<!-- Counter Channel -->
+	<channel-type id="bae-counter">
+		<item-type>Number</item-type>
+		<label>Counter</label>
+		<state readOnly="true" pattern="%d"/>
+	</channel-type>
+</thing:thing-descriptions>

bundles/org.openhab.binding.onewire/src/main/resources/OH-INF/thing/basic.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<thing:thing-descriptions bindingId="onewire"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:thing="https://openhab.org/schemas/thing-description/v1.0.0"
+	xsi:schemaLocation="https://openhab.org/schemas/thing-description/v1.0.0 https://openhab.org/schemas/thing-description-1.0.0.xsd">
+	<thing-type id="basic">
+		<supported-bridge-type-refs>
+			<bridge-type-ref id="owserver"/>
+		</supported-bridge-type-refs>
+		<label>Basic 1 Wire Sensor</label>
+		<config-description-ref uri="thing-type:onewire:basethingconfig"/>
+	</thing-type>
+</thing:thing-descriptions>

bundles/org.openhab.binding.onewire/src/main/resources/OH-INF/thing/bridge.xml

@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<thing:thing-descriptions bindingId="onewire"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:thing="https://openhab.org/schemas/thing-description/v1.0.0"
+	xsi:schemaLocation="https://openhab.org/schemas/thing-description/v1.0.0 https://openhab.org/schemas/thing-description-1.0.0.xsd">
+	<bridge-type id="owserver" extensible="owfs-string,owfs-number">
+		<label>OW Server</label>
+		<description>An owserver instance</description>
+		<config-description>
+			<parameter name="network-address" type="text">
+				<context>network_address</context>
+				<label>Network Address</label>
+				<description>Network address of the host running the owserver</description>
+				<required>true</required>
+			</parameter>
+			<parameter name="port" type="integer">
+				<label>Port</label>
+				<description>Listening port of the owserver</description>
+				<default>4304</default>
+				<required>false</required>
+			</parameter>
+		</config-description>
+	</bridge-type>
+	<channel-type id="owfs-string">
+		<item-type>String</item-type>
+		<label>Direct Access to OWFS-Path (String)</label>
+		<description>Allows direct access to the OWFS</description>
+		<state readOnly="true"/>
+		<config-description>
+			<parameter name="path" type="text">
+				<label>OWFS Path</label>
+				<description>full path to the OWFS-node (e.g. statistics/errors/CRC8_errors)</description>
+				<required>true</required>
+			</parameter>
+			<parameter name="refresh" type="integer" min="1">
+				<label>Refresh Time</label>
+				<description>Time in seconds after which the channel is refreshed</description>
+				<default>300</default>
+				<unitLabel>s</unitLabel>
+				<required>false</required>
+			</parameter>
+		</config-description>
+	</channel-type>
+	<channel-type id="owfs-number">
+		<item-type>Number</item-type>
+		<label>Direct Access to OWFS-Path (Number)</label>
+		<description>Allows direct access to the OWFS</description>
+		<state readOnly="true"/>
+		<config-description>
+			<parameter name="path" type="text">
+				<label>OWFS Path</label>
+				<description>full path to the OWFS-node (e.g. statistics/errors/CRC8_errors)</description>
+				<required>true</required>
+			</parameter>
+			<parameter name="refresh" type="integer" min="1">
+				<label>Refresh Time</label>
+				<description>Time in seconds after which the channel is refreshed</description>
+				<default>300</default>
+				<unitLabel>s</unitLabel>
+				<required>false</required>
+			</parameter>
+		</config-description>
+	</channel-type>
+</thing:thing-descriptions>

bundles/org.openhab.binding.onewire/src/main/resources/OH-INF/thing/common.xml

@@ -0,0 +1,168 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<thing:thing-descriptions bindingId="onewire"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:thing="https://openhab.org/schemas/thing-description/v1.0.0"
+	xsi:schemaLocation="https://openhab.org/schemas/thing-description/v1.0.0 https://openhab.org/schemas/thing-description-1.0.0.xsd">
+	<!-- Device Present Channel -->
+	<channel-type id="present">
+		<item-type>Switch</item-type>
+		<label>Present</label>
+		<description>ON if device present on OneWire bus</description>
+		<state readOnly="true"/>
+	</channel-type>
+	<!-- Temperature Channel -->
+	<channel-type id="temperature">
+		<item-type>Number:Temperature</item-type>
+		<label>Temperature</label>
+		<description>temperature value of this sensor</description>
+		<state readOnly="true" pattern="%.1f %unit%"/>
+	</channel-type>
+	<channel-type id="temperature-por">
+		<item-type>Number:Temperature</item-type>
+		<label>Temperature</label>
+		<description>temperature value of this sensor</description>
+		<state readOnly="true" pattern="%.1f %unit%"/>
+		<config-description>
+			<parameter name="ignorepor" type="boolean">
+				<label>Ignore POR-value</label>
+				<description>filters all 85°C readings (POR-value), may suppress valid readings if enabled</description>
+				<default>false</default>
+				<required>false</required>
+			</parameter>
+		</config-description>
+	</channel-type>
+	<channel-type id="temperature-por-res">
+		<item-type>Number:Temperature</item-type>
+		<label>Temperature</label>
+		<description>temperature value of this sensor</description>
+		<state readOnly="true" pattern="%.1f %unit%"/>
+		<config-description>
+			<parameter name="ignorepor" type="boolean">
+				<label>Ignore POR-value</label>
+				<description>filters all 85°C readings (POR-value), may suppress valid readings if enabled</description>
+				<default>false</default>
+				<required>false</required>
+			</parameter>
+			<parameter name="resolution" type="text">
+				<label>Sensor Resolution</label>
+				<options>
+					<option value="9">9 bit</option>
+					<option value="10">10 bit</option>
+					<option value="11">11 bit</option>
+					<option value="12">12 bit</option>
+				</options>
+				<default>10</default>
+				<limitToOptions>true</limitToOptions>
+				<required>false</required>
+			</parameter>
+		</config-description>
+	</channel-type>
+	<!-- Dewpoint Channel -->
+	<channel-type id="dewpoint">
+		<item-type>Number:Temperature</item-type>
+		<label>Dewpoint</label>
+		<description>dewpoint (calculated from temperature and relative humidity)</description>
+		<state readOnly="true" pattern="%.1f %unit%"/>
+	</channel-type>
+	<!-- Relative Humidity Channel -->
+	<channel-type id="humidity">
+		<item-type>Number:Dimensionless</item-type>
+		<label>Humidity</label>
+		<description>relative humidity (0-100%)</description>
+		<state readOnly="true" pattern="%d %%"/>
+	</channel-type>
+	<channel-type id="humidityconf">
+		<item-type>Number:Dimensionless</item-type>
+		<label>Humidity</label>
+		<description>relative humidity (0-100%)</description>
+		<state readOnly="true" pattern="%d %%"/>
+		<config-description>
+			<parameter name="humiditytype" type="text">
+				<label>Humidity Sensor-Type</label>
+				<limitToOptions>true</limitToOptions>
+				<options>
+					<option value="/humidity">HIH-3610</option>
+					<option value="/HIH4000/humidity">HIH-4000</option>
+					<option value="/HTM1735/humidity">HTM-1735</option>
+					<option value="/DATANAB/humidity">Datanab</option>
+				</options>
+				<default>/humidity</default>
+				<required>false</required>
+			</parameter>
+		</config-description>
+	</channel-type>
+	<!-- Absolute Humidity Channel -->
+	<channel-type id="absolutehumidity">
+		<item-type>Number:Density</item-type>
+		<label>Abs. Humidity</label>
+		<description>absolute humidity (calculated from temperature and relative humidity)</description>
+		<state readOnly="true" pattern="%.2f %unit%"/>
+	</channel-type>
+	<!-- Voltage Channel -->
+	<channel-type id="voltage">
+		<item-type>Number:ElectricPotential</item-type>
+		<label>Voltage</label>
+		<description>The voltage measured by the sensor</description>
+		<state readOnly="true" pattern="%.1f %unit%"/>
+	</channel-type>
+	<!-- Supply-Voltage Channel -->
+	<channel-type id="supplyvoltage">
+		<item-type>Number:ElectricPotential</item-type>
+		<label>Supply Voltage</label>
+		<description>The sensor's supply voltage</description>
+		<state readOnly="true" pattern="%.1f %unit%"/>
+	</channel-type>
+	<!-- Light Channel -->
+	<channel-type id="light">
+		<item-type>Number:Illuminance</item-type>
+		<label>Illuminance</label>
+		<description>Ambient light</description>
+		<state readOnly="true" pattern="%.0f %unit%"/>
+	</channel-type>
+	<!-- Current Channel -->
+	<channel-type id="current">
+		<item-type>Number:ElectricCurrent</item-type>
+		<label>Current</label>
+		<description>The current measured by the sensor</description>
+		<state readOnly="true" pattern="%.1f %unit%"/>
+	</channel-type>
+	<!-- Digital I/O Channel -->
+	<channel-type id="dio">
+		<item-type>Switch</item-type>
+		<label>Digital I/O</label>
+		<config-description>
+			<parameter name="mode" type="text">
+				<label>Mode</label>
+				<options>
+					<option value="input">Input</option>
+					<option value="output">Output</option>
+				</options>
+				<default>input</default>
+				<limitToOptions>true</limitToOptions>
+			</parameter>
+			<parameter name="logic" type="text">
+				<label>Channel Logic</label>
+				<options>
+					<option value="normal">normal</option>
+					<option value="inverted">inverted</option>
+				</options>
+				<default>normal</default>
+				<limitToOptions>true</limitToOptions>
+			</parameter>
+		</config-description>
+	</channel-type>
+	<!-- Pressure Channel -->
+	<channel-type id="pressure">
+		<item-type>Number:Pressure</item-type>
+		<label>Pressure</label>
+		<description>The pressure measured by the sensor</description>
+		<state readOnly="true" pattern="%.1f %unit%"/>
+	</channel-type>
+	<!-- Counter Channel -->
+	<channel-type id="counter">
+		<item-type>Number</item-type>
+		<label>Counter</label>
+		<description>A single counter (reset on power loss)</description>
+		<state readOnly="true" pattern="%d"/>
+	</channel-type>
+</thing:thing-descriptions>

bundles/org.openhab.binding.onewire/src/main/resources/OH-INF/thing/multisensor.xml

@@ -0,0 +1,107 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<thing:thing-descriptions bindingId="onewire"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:thing="https://openhab.org/schemas/thing-description/v1.0.0"
+	xsi:schemaLocation="https://openhab.org/schemas/thing-description/v1.0.0 https://openhab.org/schemas/thing-description-1.0.0.xsd">
+	<thing-type id="ms-tx">
+		<supported-bridge-type-refs>
+			<bridge-type-ref id="owserver"/>
+		</supported-bridge-type-refs>
+		<label>Multisensor (T, TC, TH, TL, TV, Generic)</label>
+		<description>A 1-wire multisensor (DS1923/DS2438-based)</description>
+		<config-description-ref uri="thing-type:onewire:mstxconfig"/>
+	</thing-type>
+	<thing-type id="bms">
+		<supported-bridge-type-refs>
+			<bridge-type-ref id="owserver"/>
+		</supported-bridge-type-refs>
+		<label>Multisensor BMS</label>
+		<description>1-wire multisensor (DS2438-based)</description>
+		<config-description>
+			<parameter name="id" type="text">
+				<label>TH(S) Sensor ID</label>
+				<description>Sensor ID of the DS2438 sensor in format: xx.xxxxxxxxxxxx or a full path including hubs/branches</description>
+				<required>true</required>
+			</parameter>
+			<parameter name="refresh" type="integer" min="1">
+				<label>Refresh Time</label>
+				<description>Time in seconds after which the thing is refreshed</description>
+				<default>300</default>
+				<unitLabel>s</unitLabel>
+				<required>false</required>
+			</parameter>
+			<parameter name="temperaturesensor" type="text">
+				<label>Temperature Sensor</label>
+				<options>
+					<option value="DS2438">internal (DS2438)</option>
+					<option value="DS18B20">external (DS18B20)</option>
+				</options>
+				<default>DS2438</default>
+				<limitToOptions>true</limitToOptions>
+				<required>false</required>
+			</parameter>
+		</config-description>
+	</thing-type>
+	<thing-type id="ams">
+		<supported-bridge-type-refs>
+			<bridge-type-ref id="owserver"/>
+		</supported-bridge-type-refs>
+		<label>Multisensor AMS</label>
+		<description>1-wire multisensor (DS2438-based)</description>
+		<config-description>
+			<parameter name="id" type="text">
+				<label>TH(S) Sensor ID</label>
+				<description>Sensor ID of the DS2438 sensor in format: xx.xxxxxxxxxxxx or a full path including hubs/branches</description>
+				<required>true</required>
+			</parameter>
+			<parameter name="refresh" type="integer" min="1">
+				<label>Refresh Time for Analog Channels</label>
+				<description>Time in seconds after which the thing is refreshed</description>
+				<default>300</default>
+				<unitLabel>s</unitLabel>
+				<required>false</required>
+			</parameter>
+			<parameter name="refreshdigital" type="integer" min="1">
+				<label>Refresh Time for Digital Channels</label>
+				<description>Time in seconds after which the digital I/Os are refreshed</description>
+				<default>10</default>
+				<unitLabel>s</unitLabel>
+				<required>false</required>
+			</parameter>
+			<parameter name="temperaturesensor" type="text">
+				<label>Temperature Sensor</label>
+				<options>
+					<option value="DS2438">internal (DS2438)</option>
+					<option value="DS18B20">external (DS18B20)</option>
+				</options>
+				<default>DS2438</default>
+				<limitToOptions>true</limitToOptions>
+				<required>false</required>
+			</parameter>
+		</config-description>
+	</thing-type>
+	<thing-type id="edsenv">
+		<supported-bridge-type-refs>
+			<bridge-type-ref id="owserver"/>
+		</supported-bridge-type-refs>
+		<label>Multisensor EDS</label>
+		<description>A 1-wire multisensor (EDS00xx-based)</description>
+		<properties>
+			<property name="sensorCount">1</property>
+		</properties>
+		<config-description>
+			<parameter name="id" type="text">
+				<label>Sensor ID</label>
+				<description>Sensor ID in format: xx.xxxxxxxxxxxx)</description>
+				<required>true</required>
+			</parameter>
+			<parameter name="refresh" type="integer" min="1">
+				<label>Refresh Time</label>
+				<description>Time in seconds after which the thing is refreshed</description>
+				<default>300</default>
+				<unitLabel>s</unitLabel>
+				<required>false</required>
+			</parameter>
+		</config-description>
+	</thing-type>
+</thing:thing-descriptions>

bundles/org.openhab.binding.onewire/src/main/resources/accepted_itemtypes.properties

@@ -0,0 +1,29 @@
+humidity = Number:Dimensionless
+absolutehumidity = Number:Density
+dewpoint = Number:Temperature
+temperature = Number:Temperature
+light = Number:Illuminance
+pressure = Number:Pressure
+voltage = Number:ElectricPotential
+supplyvoltage = Number:ElectricPotential
+current = Number:ElectricCurrent
+counter = Number
+counter0 = Number
+counter1 = Number
+digital = Switch
+digital0 = Switch
+digital1 = Switch
+digital2 = Switch
+digital3 = Switch
+digital4 = Switch
+digital5 = Switch
+digital6 = Switch
+digital7 = Switch
+digital8 = Switch
+present = Switch
+pwmduty1 = Number:Dimensionsless
+pwmduty2 = Number:Dimensionsless
+pwmduty3 = Number:Dimensionsless
+pwmduty4 = Number:Dimensionsless
+pwmfreq1 = Number:Frequency
+pwmfreq2 = Number:Frequency

bundles/org.openhab.binding.onewire/src/main/resources/sensor.properties

@@ -0,0 +1,89 @@
+#
+# sensor.properties - This file defines the sensor properties
+#
+# Format: sensorType.channels = name:type:[label][,name:type:[label]]...
+#         sensorType.label = label
+#         sensorType.thingtype = thingtype
+#
+DS1420.channels = present:present:
+DS1420.label = 1kb EEPROM
+DS1420.thingtype = basic
+DS1822.channels = temperature:temperature-por-res:
+DS1822.label = Temperature Sensor
+DS1822.thingtype = basic
+DS18B20.channels = temperature:temperature-por-res:
+DS18B20.label = Temperature Sensor
+DS18B20.thingtype = basic
+DS18S20.channels = temperature:temperature-por:
+DS18S20.label = Temperature Sensor
+DS18S20.thingtype = basic
+DS1923.channels = temperature:temperature:,humidity:humidity:,absolutehumidity:abshumidity:,dewpoint:temperature:Dewpoint
+DS1923.label = Multisensor
+DS1923.thingtype = ms-tx
+DS2401.channels = present:present:
+DS2401.label = iButton
+DS2401.thingtype = basic
+DS2405.channels = digital0:dio:Digital I/O 0
+DS2405.label = Single Digital I/O
+DS2405.thingtype = basic
+DS2406.channels =  digital0:dio:Digital I/O 0,digital1:dio:Digital I/O 1
+DS2406.label = Dual Digital I/O
+DS2406.thingtype = basic
+DS2408.channels =  digital0:dio:Digital I/O 0,digital1:dio:Digital I/O 1,digital2:dio:Digital I/O 2,digital3:dio:Digital I/O 3,digital4:dio:Digital I/O 4,digital5:dio:Digital I/O 5,digital6:dio:Digital I/O 6,digital7:dio:Digital I/O 7
+DS2408.label = Octal Digital I/O
+DS2408.thingtype = basic
+DS2413.channels =  digital0:dio:Digital I/O 0,digital1:dio:Digital I/O 1
+DS2413.label = Dual Digital I/O
+DS2413.thingtype = basic
+DS2423.channels = counter0:counter:Counter 0,counter1:counter:Counter 1
+DS2423.label = Dual Counter
+DS2423.thingtype = basic
+# AMS/BMS: humidity and temperature added by handler
+AMS.channels = supplyvoltage:voltage:Supplyvoltage,absolutehumidity:abshumidity:,dewpoint:temperature:Dewpoint,voltage:voltage:,digital0:dio:Digital I/O 0,digital1:dio:Digital I/O 1
+AMS.label = Multisensor AMS
+AMS.thingtype = ams
+AMS_S.channels = supplyvoltage:voltage:Supplyvoltage,absolutehumidity:abshumidity:,dewpoint:temperature:Dewpoint,light:light:,voltage:voltage:,digital0:dio:Digital I/O 0,digital1:dio:Digital I/O 1
+AMS_S.label = Multisensor AMS
+AMS_S.thingtype = ams
+BMS.channels = supplyvoltage:voltage:Supplyvoltage,absolutehumidity:abshumidity:,dewpoint:temperature:Dewpoint
+BMS.label = Multisensor BMS
+BMS.thingtype = bms
+BMS_S.channels = supplyvoltage:voltage:Supplyvoltage,absolutehumidity:abshumidity:,dewpoint:temperature:Dewpoint,light:light:
+BMS_S.label = Multisensor BMS
+BMS_S.thingtype = bms
+# DS2438
+DS2438.channels = supplyvoltage:voltage:Supplyvoltage,temperature:temperature:,voltage:voltage:,current:current:
+DS2438.label = Multisensor (generic)
+DS2438.thingtype = ms-tx
+MS_TC.channels = supplyvoltage:voltage:Supplyvoltage,temperature:temperature:,voltage:voltage:
+MS_TC.label = Multisensor TC
+MS_TC.thingtype = ms-tx
+MS_TH.channels = supplyvoltage:voltage:Supplyvoltage,temperature:temperature:,humidity:humidityconf:,absolutehumidity:abshumidity:,dewpoint:temperature:Dewpoint
+MS_TH.label = Multisensor TH
+MS_TH.thingtype = ms-tx
+MS_TL.channels = supplyvoltage:voltage:Supplyvoltage,temperature:temperature:,light:light:
+MS_TL.label = Multisensor TL
+MS_TL.thingtype = ms-tx
+MS_TV.channels = supplyvoltage:voltage:Supplyvoltage,temperature:temperature:,voltage:voltage:
+MS_TV.label = Multisensor TV
+MS_TV.thingtype = ms-tx
+# EDS
+EDS0064.channels = temperature:temperature:
+EDS0064.label = Multisensor EDS
+EDS0064.thingtype = edsenv
+EDS0065.channels = temperature:temperature:,humidity:humidity:,absolutehumidity:abshumidity:,dewpoint:temperature:Dewpoint
+EDS0065.label = Multisensor EDS
+EDS0065.thingtype = edsenv
+EDS0066.channels = temperature:temperature:,pressure:pressure:
+EDS0066.label = Multisensor EDS
+EDS0066.thingtype = edsenv
+EDS0067.channels = temperature:temperature:,light:light:
+EDS0067.label = Multisensor EDS
+EDS0067.thingtype = edsenv
+EDS0068.channels = temperature:temperature:,humidity:humidity:,absolutehumidity:abshumidity:,dewpoint:temperature:Dewpoint,pressure:pressure:,light:light:
+EDS0068.label = Multisensor EDS
+EDS0068.thingtype = edsenv
+# BAE091x
+BAE0910.channels =
+BAE0910.label = Multisensor BAE0910
+BAE0910.thingtype = bae091x

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/CompletenessTest.java

@@ -0,0 +1,104 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire;
+
+import java.lang.reflect.Modifier;
+import java.util.*;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.junit.Assert;
+import org.junit.Test;
+import org.openhab.binding.onewire.internal.OwBindingConstants;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.device.OwSensorType;
+import org.openhab.binding.onewire.internal.handler.*;
+
+/**
+ * Tests cases for binding completeness
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class CompletenessTest {
+    // internal/temporary types, DS2409 (MicroLAN Coupler), DS2431 (EEPROM)
+    private static final Set<OwSensorType> IGNORED_SENSOR_TYPES = Collections
+            .unmodifiableSet(Stream.of(OwSensorType.DS2409, OwSensorType.DS2431, OwSensorType.EDS, OwSensorType.MS_TH_S,
+                    OwSensorType.BAE, OwSensorType.BAE0911, OwSensorType.UNKNOWN).collect(Collectors.toSet()));
+
+    private static final Set<OwSensorType> THINGHANDLER_SENSOR_TYPES = Collections.unmodifiableSet(Stream
+            .of(AdvancedMultisensorThingHandler.SUPPORTED_SENSOR_TYPES,
+                    BasicMultisensorThingHandler.SUPPORTED_SENSOR_TYPES, BasicThingHandler.SUPPORTED_SENSOR_TYPES,
+                    EDSSensorThingHandler.SUPPORTED_SENSOR_TYPES, BAE091xSensorThingHandler.SUPPORTED_SENSOR_TYPES)
+            .flatMap(Set::stream).collect(Collectors.toSet()));
+
+    @Test
+    public void allSupportedTypesInThingHandlerMap() {
+        for (OwSensorType sensorType : EnumSet.allOf(OwSensorType.class)) {
+            if (!OwBindingConstants.THING_TYPE_MAP.containsKey(sensorType)
+                    && !IGNORED_SENSOR_TYPES.contains(sensorType)) {
+                Assert.fail("missing thing type map for sensor type " + sensorType.name());
+            }
+        }
+    }
+
+    @Test
+    public void allSupportedTypesInThingChannelsMap() {
+        for (OwSensorType sensorType : EnumSet.allOf(OwSensorType.class)) {
+            if (!OwBindingConstants.SENSOR_TYPE_CHANNEL_MAP.containsKey(sensorType)
+                    && !IGNORED_SENSOR_TYPES.contains(sensorType)) {
+                Assert.fail("missing channel configuration map for sensor type " + sensorType.name());
+            }
+        }
+    }
+
+    @Test
+    public void allSensorsSupportedByThingHandlers() {
+        for (OwSensorType sensorType : EnumSet.allOf(OwSensorType.class)) {
+            if (!THINGHANDLER_SENSOR_TYPES.contains(sensorType) && !IGNORED_SENSOR_TYPES.contains(sensorType)) {
+                Assert.fail("missing thing handler for sensor type " + sensorType.name());
+            }
+        }
+    }
+
+    @Test
+    public void allSensorTypesInLabelMap() {
+        for (OwSensorType sensorType : EnumSet.allOf(OwSensorType.class)) {
+            if (!OwBindingConstants.THING_LABEL_MAP.containsKey(sensorType)
+                    && !IGNORED_SENSOR_TYPES.contains(sensorType)) {
+                Assert.fail("missing label for sensor type " + sensorType.name());
+            }
+        }
+    }
+
+    @Test
+    public void acceptedItemTypeMapCompleteness() throws OwException {
+        List<String> channels = Arrays.stream(OwBindingConstants.class.getDeclaredFields())
+                .filter(f -> Modifier.isStatic(f.getModifiers()))
+                .filter(f -> f.getName().startsWith("CHANNEL") && !f.getName().startsWith("CHANNEL_TYPE")).map(f -> {
+                    try {
+                        return (String) f.get(null);
+                    } catch (IllegalAccessException e) {
+                        Assert.fail("unexpected");
+                        return null;
+                    }
+                }).collect(Collectors.toList());
+
+        for (String channel : channels) {
+            if (!OwBindingConstants.ACCEPTED_ITEM_TYPES_MAP.containsKey(channel)) {
+                Assert.fail("missing accepted item type for channel " + channel);
+            }
+        }
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/OwserverDeviceParameterTest.java

@@ -0,0 +1,61 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire;
+
+import static org.junit.Assert.assertEquals;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.junit.Test;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.owserver.OwserverDeviceParameter;
+
+/**
+ * Tests cases for {@link SensorId}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class OwserverDeviceParameterTest {
+    private final SensorId sensorId = new SensorId("/1F.0123456789ab/main/00.1234567890ab");
+
+    @Test
+    public void withoutPrefixTest() {
+        OwserverDeviceParameter owserverDeviceParameter = new OwserverDeviceParameter("/humidity");
+        assertEquals("/1F.0123456789ab/main/00.1234567890ab/humidity", owserverDeviceParameter.getPath(sensorId));
+
+        owserverDeviceParameter = new OwserverDeviceParameter("humidity");
+        assertEquals("/1F.0123456789ab/main/00.1234567890ab/humidity", owserverDeviceParameter.getPath(sensorId));
+    }
+
+    public void withPrefixTest() {
+        OwserverDeviceParameter owserverDeviceParameter = new OwserverDeviceParameter("uncached", "/humidity");
+        assertEquals("/uncached/1F.0123456789ab/main/00.1234567890ab/humidity",
+                owserverDeviceParameter.getPath(sensorId));
+
+        owserverDeviceParameter = new OwserverDeviceParameter("uncached", "/humidity");
+        assertEquals("/uncached/1F.0123456789ab/main/00.1234567890ab/humidity",
+                owserverDeviceParameter.getPath(sensorId));
+
+        owserverDeviceParameter = new OwserverDeviceParameter("/uncached", "/humidity");
+        assertEquals("/uncached/1F.0123456789ab/main/00.1234567890ab/humidity",
+                owserverDeviceParameter.getPath(sensorId));
+
+        owserverDeviceParameter = new OwserverDeviceParameter("/uncached/", "/humidity");
+        assertEquals("/uncached/1F.0123456789ab/main/00.1234567890ab/humidity",
+                owserverDeviceParameter.getPath(sensorId));
+
+        owserverDeviceParameter = new OwserverDeviceParameter("uncached/", "/humidity");
+        assertEquals("/uncached/1F.0123456789ab/main/00.1234567890ab/humidity",
+                owserverDeviceParameter.getPath(sensorId));
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/SensorIdTest.java

@@ -0,0 +1,77 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire;
+
+import static org.junit.Assert.*;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.junit.Test;
+import org.openhab.binding.onewire.internal.SensorId;
+
+/**
+ * Tests cases for {@link SensorId}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class SensorIdTest {
+
+    @Test
+    public void bareSensorIdConstructionTest() {
+        SensorId sensorId = new SensorId("28.0123456789ab");
+        assertEquals("/28.0123456789ab", sensorId.getFullPath());
+        assertEquals("28.0123456789ab", sensorId.getId());
+        assertEquals("28", sensorId.getFamilyId());
+
+        sensorId = new SensorId("/28.0123456789ab");
+        assertEquals("/28.0123456789ab", sensorId.getFullPath());
+        assertEquals("28.0123456789ab", sensorId.getId());
+        assertEquals("28", sensorId.getFamilyId());
+    }
+
+    @Test
+    public void hubMainSensorIdConstructionTest() {
+        SensorId sensorId = new SensorId("1F.0123456789ab/main/28.0123456789ab");
+        assertEquals("/1F.0123456789ab/main/28.0123456789ab", sensorId.getFullPath());
+        assertEquals("28.0123456789ab", sensorId.getId());
+        assertEquals("28", sensorId.getFamilyId());
+
+        sensorId = new SensorId("/1F.0123456789ab/main/28.0123456789ab");
+        assertEquals("/1F.0123456789ab/main/28.0123456789ab", sensorId.getFullPath());
+        assertEquals("28.0123456789ab", sensorId.getId());
+        assertEquals("28", sensorId.getFamilyId());
+    }
+
+    @Test
+    public void hubAuxSensorIdConstructionTest() {
+        SensorId sensorId = new SensorId("1F.0123456789ab/aux/28.0123456789ab");
+        assertEquals("/1F.0123456789ab/aux/28.0123456789ab", sensorId.getFullPath());
+        assertEquals("28.0123456789ab", sensorId.getId());
+        assertEquals("28", sensorId.getFamilyId());
+
+        sensorId = new SensorId("/1F.0123456789ab/aux/28.0123456789ab");
+        assertEquals("/1F.0123456789ab/aux/28.0123456789ab", sensorId.getFullPath());
+        assertEquals("28.0123456789ab", sensorId.getId());
+        assertEquals("28", sensorId.getFamilyId());
+    }
+
+    @Test
+    public void equalsTest() {
+        SensorId sensorId1 = new SensorId("1F.0123456789ab/aux/28.0123456789ab");
+        SensorId sensorId2 = new SensorId("1F.0123456789ab/aux/28.0123456789ab");
+        SensorId sensorId3 = new SensorId("1F.0123456789ab/aux/28.0123456789ac");
+
+        assertTrue(sensorId1.equals(sensorId2));
+        assertFalse(sensorId1.equals(sensorId3));
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/UtilTest.java

@@ -0,0 +1,55 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire;
+
+import static org.junit.Assert.assertEquals;
+
+import javax.measure.quantity.Dimensionless;
+import javax.measure.quantity.Temperature;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.junit.Test;
+import org.openhab.binding.onewire.internal.Util;
+import org.openhab.core.library.dimension.Density;
+import org.openhab.core.library.types.QuantityType;
+
+/**
+ * Tests cases for {@link Util}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class UtilTest {
+
+    @Test
+    public void convertAbsoluteHumidityTest() {
+        QuantityType<Temperature> temperature = new QuantityType<>("20 °C");
+        QuantityType<Dimensionless> relativeHumidity = new QuantityType<>("75%");
+
+        @SuppressWarnings("unchecked")
+        QuantityType<Density> absoluteHumidity = (QuantityType<Density>) Util.calculateAbsoluteHumidity(temperature,
+                relativeHumidity);
+        assertEquals(12.93, absoluteHumidity.doubleValue(), 0.01);
+    }
+
+    @Test
+    public void dewPointTest() {
+        QuantityType<Temperature> temperature = new QuantityType<>("20 °C");
+        QuantityType<Dimensionless> relativeHumidity = new QuantityType<>("75%");
+
+        @SuppressWarnings("unchecked")
+        QuantityType<Temperature> dewPoint = (QuantityType<Temperature>) Util.calculateDewpoint(temperature,
+                relativeHumidity);
+        assertEquals(15.43, dewPoint.doubleValue(), 0.01);
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/device/BAE0910Test.java

@@ -0,0 +1,342 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.device;
+
+import static org.junit.Assert.*;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.util.*;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.ArgumentCaptor;
+import org.mockito.InOrder;
+import org.mockito.Mockito;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.device.BAE0910;
+import org.openhab.binding.onewire.internal.owserver.OwserverDeviceParameter;
+import org.openhab.core.config.core.Configuration;
+import org.openhab.core.library.types.DecimalType;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.library.types.QuantityType;
+import org.openhab.core.thing.type.ChannelTypeUID;
+import org.openhab.core.types.State;
+
+/**
+ * Tests cases for {@link BAE0910}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class BAE0910Test extends DeviceTestParent<BAE0910> {
+    @Before
+    public void setupMocks() {
+        setupMocks(THING_TYPE_BAE091X, BAE0910.class);
+    }
+
+    // pin 1: counter
+
+    @Test
+    public void counter() {
+        addChannel(CHANNEL_COUNTER, "Number");
+        final BAE0910 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(
+                    mockBridgeHandler.readDecimalType(eq(testSensorId), eq(new OwserverDeviceParameter("/counter"))))
+                    .thenReturn(new DecimalType(34567));
+
+            testDevice.enableChannel(CHANNEL_COUNTER);
+            testDevice.configureChannels(mockBridgeHandler);
+
+            // refresh
+            ArgumentCaptor<State> stateArgumentCaptor = ArgumentCaptor.forClass(State.class);
+            testDevice.refresh(mockBridgeHandler, true);
+            inOrder.verify(mockBridgeHandler).readDecimalType(eq(testSensorId),
+                    eq(new OwserverDeviceParameter("/counter")));
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_COUNTER), stateArgumentCaptor.capture());
+            assertEquals(new DecimalType(34567), stateArgumentCaptor.getValue());
+
+            // write
+            assertFalse(testDevice.writeChannel(mockBridgeHandler, CHANNEL_COUNTER, new DecimalType(12345)));
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    // pin 2: digital2 or pwm1
+
+    @Test
+    public void digitalOut2() {
+        addChannel(CHANNEL_DIGITAL2, "Switch");
+        digitalBaseChannel(CHANNEL_DIGITAL2, bitSet(3, 4), 0, "/out", bitSet(0), true);
+    }
+
+    @Test
+    public void pwm4() {
+        pwmBaseChannel(CHANNEL_PWM_FREQ2, CHANNEL_PWM_DUTY4, "/period2", "/duty4", 2);
+    }
+
+    // pin 6: pio or pwm 3
+
+    @Test
+    public void digital6PioIn() {
+        Map<String, Object> channelConfig = new HashMap<>();
+        channelConfig.put("pulldevice", "pulldown");
+        channelConfig.put("mode", "input");
+        addChannel(CHANNEL_DIGITAL6, "Switch", new Configuration(channelConfig));
+        digitalBaseChannel(CHANNEL_DIGITAL6, bitSet(1, 2, 3, 4), 1, "/pio", bitSet(0), false);
+    }
+
+    @Test
+    public void digital6PioOut() {
+        Map<String, Object> channelConfig = new HashMap<>();
+        channelConfig.put("mode", "output");
+        addChannel(CHANNEL_DIGITAL6, "Switch", new Configuration(channelConfig));
+        digitalBaseChannel(CHANNEL_DIGITAL6, bitSet(0, 3, 4), 1, "/pio", bitSet(0), true);
+    }
+
+    @Test
+    public void pwm3() {
+        pwmBaseChannel(CHANNEL_PWM_FREQ1, CHANNEL_PWM_DUTY3, "/period1", "/duty3", 1);
+    }
+
+    // pin 7: analog, output, pwm2
+
+    @Test
+    public void analog() {
+        Map<String, Object> channelConfig = new HashMap<>();
+        channelConfig.put("hires", "true");
+        addChannel(CHANNEL_VOLTAGE, "Number:ElectricPotential", new Configuration(channelConfig));
+
+        final BAE0910 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), eq(new OwserverDeviceParameter("/adc"))))
+                    .thenReturn(new DecimalType(5.2));
+
+            testDevice.enableChannel(CHANNEL_VOLTAGE);
+            testDevice.configureChannels(mockBridgeHandler);
+
+            // test configuration
+            assertEquals(bitSet(3, 4), checkConfiguration(2));
+
+            // refresh
+            ArgumentCaptor<State> stateArgumentCaptor = ArgumentCaptor.forClass(State.class);
+            testDevice.refresh(mockBridgeHandler, true);
+            inOrder.verify(mockBridgeHandler).readDecimalType(eq(testSensorId),
+                    eq(new OwserverDeviceParameter("/adc")));
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_VOLTAGE), stateArgumentCaptor.capture());
+            assertEquals(new QuantityType<>("5.2 V"), stateArgumentCaptor.getValue());
+
+            // write (should fail)
+            assertFalse(testDevice.writeChannel(mockBridgeHandler, CHANNEL_VOLTAGE, new QuantityType<>("3 V")));
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void digitalOut7() {
+        addChannel(CHANNEL_DIGITAL7, "Switch");
+        digitalBaseChannel(CHANNEL_DIGITAL7, bitSet(4), 4, "/tpm2c", bitSet(4, 7), true);
+    }
+
+    @Test
+    public void pwm2() {
+        pwmBaseChannel(CHANNEL_PWM_FREQ2, CHANNEL_PWM_DUTY2, "/period2", "/duty2", 2);
+    }
+
+    // pin 8: digital in, digital out or pwm
+
+    @Test
+    public void digitalIn8() {
+        addChannel(CHANNEL_DIGITAL8, "Switch", new ChannelTypeUID(BINDING_ID, "bae-in"));
+        digitalBaseChannel(CHANNEL_DIGITAL8, bitSet(4, 5), 3, "/tpm1c", bitSet(4, 5, 7), false);
+    }
+
+    @Test
+    public void digitalOut8() {
+        addChannel(CHANNEL_DIGITAL8, "Switch");
+        digitalBaseChannel(CHANNEL_DIGITAL8, bitSet(4), 3, "/tpm1c", bitSet(4, 7), true);
+    }
+
+    @Test
+    public void pwm1() {
+        pwmBaseChannel(CHANNEL_PWM_FREQ1, CHANNEL_PWM_DUTY1, "/period1", "/duty1", 1);
+    }
+
+    /**
+     * base test for digital channels
+     *
+     * @param channel channel name
+     * @param configBitSet expected config register
+     * @param configRegister config register number
+     * @param channelParam channel parameter
+     * @param returnBitSet which bitset should be returned on read
+     * @param isOutput if this channel is an output
+     */
+    private void digitalBaseChannel(String channel, BitSet configBitSet, int configRegister, String channelParam,
+            BitSet returnBitSet, boolean isOutput) {
+        final BAE0910 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readBitSet(eq(testSensorId), eq(new OwserverDeviceParameter(channelParam))))
+                    .thenReturn(returnBitSet);
+
+            testDevice.enableChannel(channel);
+            testDevice.configureChannels(mockBridgeHandler);
+
+            // test configuration
+            assertEquals(configBitSet, checkConfiguration(configRegister));
+
+            // refresh
+            ArgumentCaptor<State> stateArgumentCaptor = ArgumentCaptor.forClass(State.class);
+            testDevice.refresh(mockBridgeHandler, true);
+            inOrder.verify(mockBridgeHandler).readBitSet(eq(testSensorId),
+                    eq(new OwserverDeviceParameter(channelParam)));
+            inOrder.verify(mockThingHandler).postUpdate(eq(channel), stateArgumentCaptor.capture());
+            assertEquals(OnOffType.ON, stateArgumentCaptor.getValue());
+
+            // write
+            if (isOutput) {
+                ArgumentCaptor<BitSet> bitSetArgumentCaptor = ArgumentCaptor.forClass(BitSet.class);
+                assertTrue(testDevice.writeChannel(mockBridgeHandler, channel, OnOffType.ON));
+                inOrder.verify(mockBridgeHandler).writeBitSet(eq(testSensorId),
+                        eq(new OwserverDeviceParameter(channelParam)), bitSetArgumentCaptor.capture());
+                assertEquals(returnBitSet, bitSetArgumentCaptor.getValue());
+            } else {
+                assertFalse(testDevice.writeChannel(mockBridgeHandler, channel, OnOffType.ON));
+            }
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    /**
+     * base test case for PWM channels
+     *
+     * @param freqChannel channel name for frequency
+     * @param dutyChannel channel name for duty cycle
+     * @param freqParam owfs parameter for frequency
+     * @param dutyParam owfs parameter for duty cycle
+     * @param registerIndex index for TPM configuration register
+     */
+    private void pwmBaseChannel(String freqChannel, String dutyChannel, String freqParam, String dutyParam,
+            int registerIndex) {
+        Map<String, Object> channelConfig = new HashMap<>();
+        channelConfig.put("prescaler", 5);
+        addChannel(freqChannel, "Number:Frequency", new Configuration(channelConfig));
+        addChannel(dutyChannel, "Number:Dimensionless");
+
+        final BAE0910 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(
+                    mockBridgeHandler.readDecimalType(eq(testSensorId), eq(new OwserverDeviceParameter(freqParam))))
+                    .thenReturn(new DecimalType(32768));
+            Mockito.when(
+                    mockBridgeHandler.readDecimalType(eq(testSensorId), eq(new OwserverDeviceParameter(dutyParam))))
+                    .thenReturn(new DecimalType(16384));
+
+            testDevice.enableChannel(freqChannel);
+            testDevice.enableChannel(dutyChannel);
+            testDevice.configureChannels(mockBridgeHandler);
+
+            // test configuration
+            assertEquals(bitSet(0, 2), checkConfiguration(registerIndex + 2));
+
+            // refresh
+            ArgumentCaptor<State> stateArgumentCaptor = ArgumentCaptor.forClass(State.class);
+            testDevice.refresh(mockBridgeHandler, true);
+            inOrder.verify(mockBridgeHandler).readDecimalType(eq(testSensorId),
+                    eq(new OwserverDeviceParameter(freqParam)));
+            inOrder.verify(mockThingHandler).postUpdate(eq(freqChannel), stateArgumentCaptor.capture());
+            assertEquals(new QuantityType<>("15.2587890625 Hz"), stateArgumentCaptor.getValue());
+            inOrder.verify(mockBridgeHandler).readDecimalType(eq(testSensorId),
+                    eq(new OwserverDeviceParameter(dutyParam)));
+            inOrder.verify(mockThingHandler).postUpdate(eq(dutyChannel), stateArgumentCaptor.capture());
+            assertEquals(new QuantityType<>("50 %"), stateArgumentCaptor.getValue());
+
+            // write
+            ArgumentCaptor<DecimalType> decimalTypeArgumentCaptor = ArgumentCaptor.forClass(DecimalType.class);
+            assertTrue(testDevice.writeChannel(mockBridgeHandler, freqChannel, new QuantityType<>("50000 Hz")));
+            inOrder.verify(mockBridgeHandler).writeDecimalType(eq(testSensorId),
+                    eq(new OwserverDeviceParameter(freqParam)), decimalTypeArgumentCaptor.capture());
+            assertEquals(new DecimalType(10), decimalTypeArgumentCaptor.getValue());
+            testDevice.writeChannel(mockBridgeHandler, dutyChannel, new QuantityType<>("25 %"));
+            inOrder.verify(mockBridgeHandler).readDecimalType(eq(testSensorId),
+                    eq(new OwserverDeviceParameter(freqParam)));
+            inOrder.verify(mockBridgeHandler).writeDecimalType(eq(testSensorId),
+                    eq(new OwserverDeviceParameter(dutyParam)), decimalTypeArgumentCaptor.capture());
+            assertEquals(new DecimalType(8192), decimalTypeArgumentCaptor.getValue());
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    /**
+     * check if all registers are written and return one
+     *
+     * @param registerIndex number of register to return
+     * @return this register's BitSet
+     * @throws OwException
+     */
+    private BitSet checkConfiguration(int registerIndex) throws OwException {
+        ArgumentCaptor<BitSet> configArgumentCaptor = ArgumentCaptor.forClass(BitSet.class);
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        inOrder.verify(mockBridgeHandler).writeBitSet(eq(testSensorId), eq(new OwserverDeviceParameter("/outc")),
+                configArgumentCaptor.capture());
+        inOrder.verify(mockBridgeHandler).writeBitSet(eq(testSensorId), eq(new OwserverDeviceParameter("/pioc")),
+                configArgumentCaptor.capture());
+        inOrder.verify(mockBridgeHandler).writeBitSet(eq(testSensorId), eq(new OwserverDeviceParameter("/adcc")),
+                configArgumentCaptor.capture());
+        inOrder.verify(mockBridgeHandler).writeBitSet(eq(testSensorId), eq(new OwserverDeviceParameter("/tpm1c")),
+                configArgumentCaptor.capture());
+        inOrder.verify(mockBridgeHandler).writeBitSet(eq(testSensorId), eq(new OwserverDeviceParameter("/tpm2c")),
+                configArgumentCaptor.capture());
+        return configArgumentCaptor.getAllValues().get(registerIndex);
+    }
+
+    /**
+     * BitSet with pre-set bits
+     *
+     * @param bits which bits to set
+     * @return the BitSet
+     */
+    private BitSet bitSet(int... bits) {
+        BitSet bitSet = new BitSet(8);
+        Arrays.stream(bits).forEach(b -> bitSet.set(b));
+        return bitSet;
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/device/DS18x20Test.java

@@ -0,0 +1,92 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.device;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.times;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.InOrder;
+import org.mockito.Mockito;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.device.DS18x20;
+import org.openhab.core.config.core.Configuration;
+import org.openhab.core.library.types.DecimalType;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.library.types.QuantityType;
+
+/**
+ * Tests cases for {@link DS18x20}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class DS18x20Test extends DeviceTestParent<DS18x20> {
+
+    @Before
+    public void setupMocks() {
+        setupMocks(THING_TYPE_BASIC, DS18x20.class);
+
+        Map<String, Object> channelConfig = new HashMap<>();
+        channelConfig.put(CONFIG_IGNORE_POR, true);
+        addChannel(CHANNEL_TEMPERATURE, "Number:Temperature", new Configuration(channelConfig));
+    }
+
+    @Test
+    public void temperatureTest() {
+        final DS18x20 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), any())).thenReturn(new DecimalType(15.0));
+
+            testDevice.enableChannel(CHANNEL_TEMPERATURE);
+            testDevice.configureChannels();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler, times(1)).readDecimalType(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_TEMPERATURE), eq(new QuantityType<>("15.0 °C")));
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void temperatureIgnorePORTest() {
+        final DS18x20 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), any())).thenReturn(new DecimalType(85.0));
+
+            testDevice.enableChannel(CHANNEL_TEMPERATURE);
+            testDevice.configureChannels();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler, times(1)).readDecimalType(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler, times(0)).postUpdate(eq(CHANNEL_TEMPERATURE), any());
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/device/DS1923Test.java

@@ -0,0 +1,98 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.device;
+
+import static org.mockito.ArgumentMatchers.*;
+import static org.mockito.Mockito.times;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.InOrder;
+import org.mockito.Mockito;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.device.DS1923;
+import org.openhab.core.library.types.DecimalType;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.library.types.QuantityType;
+
+/**
+ * Tests cases for {@link DS1923}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ * @author Michał Wójcik - Adapted to DS1923
+ */
+@NonNullByDefault
+public class DS1923Test extends DeviceTestParent<DS1923> {
+    @Before
+    public void setupMocks() {
+        setupMocks(THING_TYPE_MS_TX, DS1923.class);
+
+        addChannel(CHANNEL_TEMPERATURE, "Number:Temperature");
+        addChannel(CHANNEL_HUMIDITY, "Number:Dimensionless");
+        addChannel(CHANNEL_ABSOLUTE_HUMIDITY, "Number:Density");
+        addChannel(CHANNEL_DEWPOINT, "Number:Temperature");
+    }
+
+    @Test
+    public void temperatureChannel() {
+        final DS1923 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), any())).thenReturn(new DecimalType(10.0));
+
+            testDevice.enableChannel(CHANNEL_TEMPERATURE);
+            testDevice.configureChannels();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler).readDecimalType(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_TEMPERATURE), eq(new QuantityType<>("10.0 °C")));
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void humidityChannel() {
+        final DS1923 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), any())).thenReturn(new DecimalType(10.0));
+
+            testDevice.enableChannel(CHANNEL_HUMIDITY);
+            testDevice.enableChannel(CHANNEL_ABSOLUTE_HUMIDITY);
+            testDevice.enableChannel(CHANNEL_DEWPOINT);
+            testDevice.configureChannels();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler, times(2)).readDecimalType(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_HUMIDITY), eq(new QuantityType<>("10.0 %")));
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_ABSOLUTE_HUMIDITY),
+                    eq(new QuantityType<>("0.9381970824113001000 g/m³")));
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_DEWPOINT),
+                    eq(new QuantityType<>("-20.31395053870025 °C")));
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/device/DS2401Test.java

@@ -0,0 +1,45 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.device;
+
+import static org.openhab.binding.onewire.internal.OwBindingConstants.THING_TYPE_BASIC;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.junit.Before;
+import org.junit.Test;
+import org.openhab.binding.onewire.internal.device.DS2401;
+import org.openhab.core.library.types.OnOffType;
+
+/**
+ * Tests cases for {@link DS2401}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class DS2401Test extends DeviceTestParent<DS2401> {
+
+    @Before
+    public void setupMocks() {
+        setupMocks(THING_TYPE_BASIC, DS2401.class);
+    }
+
+    @Test
+    public void presenceTestOn() {
+        presenceTest(OnOffType.ON);
+    }
+
+    @Test
+    public void presenceTestOff() {
+        presenceTest(OnOffType.OFF);
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/device/DS2405Test.java

@@ -0,0 +1,78 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.device;
+
+import static org.mockito.ArgumentMatchers.*;
+import static org.mockito.Mockito.times;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.util.BitSet;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.InOrder;
+import org.mockito.Mockito;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.device.DS2405;
+import org.openhab.core.library.types.OnOffType;
+
+/**
+ * Tests cases for {@link DS2405}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class DS2405Test extends DeviceTestParent<DS2405> {
+
+    @Before
+    public void setupMocks() {
+        setupMocks(THING_TYPE_BASIC, DS2405.class);
+
+        addChannel(channelName(0), "Switch");
+    }
+
+    @Test
+    public void digitalChannel() {
+        digitalChannelTest(OnOffType.ON, 0);
+        digitalChannelTest(OnOffType.OFF, 0);
+    }
+
+    private void digitalChannelTest(OnOffType state, int channelNo) {
+        final DS2405 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        BitSet returnValue = new BitSet(8);
+        if (state == OnOffType.ON) {
+            returnValue.flip(0, 7);
+        }
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readBitSet(eq(testSensorId), any())).thenReturn(returnValue);
+
+            testDevice.configureChannels();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler, times(2)).readBitSet(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(channelName(channelNo)), eq(state));
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    private String channelName(int channelNo) {
+        return CHANNEL_DIGITAL + channelNo;
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/device/DS2406_DS2413Test.java

@@ -0,0 +1,82 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.device;
+
+import static org.mockito.ArgumentMatchers.*;
+import static org.mockito.Mockito.times;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.util.BitSet;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.InOrder;
+import org.mockito.Mockito;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.device.DS2406_DS2413;
+import org.openhab.core.library.types.OnOffType;
+
+/**
+ * Tests cases for {@link DS2406_DS2413}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class DS2406_DS2413Test extends DeviceTestParent<DS2406_DS2413> {
+
+    @Before
+    public void setupMocks() {
+        setupMocks(THING_TYPE_BASIC, DS2406_DS2413.class);
+
+        for (int i = 0; i < 2; i++) {
+            addChannel(channelName(i), "Switch");
+        }
+    }
+
+    @Test
+    public void digitalChannel() {
+        for (int i = 0; i < 2; i++) {
+            digitalChannelTest(OnOffType.ON, i);
+            digitalChannelTest(OnOffType.OFF, i);
+        }
+    }
+
+    private void digitalChannelTest(OnOffType state, int channelNo) {
+        final DS2406_DS2413 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        BitSet returnValue = new BitSet(8);
+        if (state == OnOffType.ON) {
+            returnValue.flip(0, 7);
+        }
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readBitSet(eq(testSensorId), any())).thenReturn(returnValue);
+
+            testDevice.configureChannels();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler, times(2)).readBitSet(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(channelName(channelNo)), eq(state));
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    private String channelName(int channelNo) {
+        return CHANNEL_DIGITAL + channelNo;
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/device/DS2408Test.java

@@ -0,0 +1,82 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.device;
+
+import static org.mockito.ArgumentMatchers.*;
+import static org.mockito.Mockito.times;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.util.BitSet;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.InOrder;
+import org.mockito.Mockito;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.device.DS2408;
+import org.openhab.core.library.types.OnOffType;
+
+/**
+ * Tests cases for {@link DS2408}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class DS2408Test extends DeviceTestParent<DS2408> {
+
+    @Before
+    public void setupMocks() {
+        setupMocks(THING_TYPE_BASIC, DS2408.class);
+
+        for (int i = 0; i < 8; i++) {
+            addChannel(channelName(i), "Switch");
+        }
+    }
+
+    @Test
+    public void digitalChannel() {
+        for (int i = 0; i < 8; i++) {
+            digitalChannelTest(OnOffType.ON, i);
+            digitalChannelTest(OnOffType.OFF, i);
+        }
+    }
+
+    private void digitalChannelTest(OnOffType state, int channelNo) {
+        final DS2408 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        BitSet returnValue = new BitSet(8);
+        if (state == OnOffType.ON) {
+            returnValue.flip(0, 8);
+        }
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readBitSet(eq(testSensorId), any())).thenReturn(returnValue);
+
+            testDevice.configureChannels();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler, times(2)).readBitSet(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(channelName(channelNo)), eq(state));
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    private String channelName(int channelNo) {
+        return CHANNEL_DIGITAL + channelNo;
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/device/DS2423Test.java

@@ -0,0 +1,78 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.device;
+
+import static org.mockito.ArgumentMatchers.*;
+import static org.mockito.Mockito.times;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.InOrder;
+import org.mockito.Mockito;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.device.DS2423;
+import org.openhab.core.library.types.DecimalType;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.types.State;
+
+/**
+ * Tests cases for {@link DS2423}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class DS2423Test extends DeviceTestParent<DS2423> {
+
+    @Before
+    public void setupMocks() {
+        setupMocks(THING_TYPE_BASIC, DS2423.class);
+
+        for (int i = 0; i < 2; i++) {
+            addChannel(channelName(i), "Number");
+        }
+    }
+
+    @Test
+    public void counterChannelTest() {
+        List<State> returnValue = new ArrayList<>();
+        returnValue.add(new DecimalType(1408));
+        returnValue.add(new DecimalType(3105));
+
+        final DS2423 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalTypeArray(eq(testSensorId), any())).thenReturn(returnValue);
+
+            testDevice.configureChannels();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler, times(1)).readDecimalTypeArray(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(channelName(0)), eq(returnValue.get(0)));
+            inOrder.verify(mockThingHandler).postUpdate(eq(channelName(1)), eq(returnValue.get(1)));
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    private String channelName(int channelNo) {
+        return CHANNEL_COUNTER + channelNo;
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/device/DS2438Test.java

@@ -0,0 +1,224 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.device;
+
+import static org.mockito.ArgumentMatchers.*;
+import static org.mockito.Mockito.times;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.InOrder;
+import org.mockito.Mockito;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.device.DS2438;
+import org.openhab.binding.onewire.internal.device.DS2438.LightSensorType;
+import org.openhab.core.library.types.DecimalType;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.library.types.QuantityType;
+
+/**
+ * Tests cases for {@link DS2438}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class DS2438Test extends DeviceTestParent<DS2438> {
+
+    @Before
+    public void setupMocks() {
+        setupMocks(THING_TYPE_MS_TX, DS2438.class);
+
+        addChannel(CHANNEL_TEMPERATURE, "Number:Temperature");
+        addChannel(CHANNEL_HUMIDITY, "Number:Dimensionless");
+        addChannel(CHANNEL_ABSOLUTE_HUMIDITY, "Number:Density");
+        addChannel(CHANNEL_DEWPOINT, "Number:Temperature");
+        addChannel(CHANNEL_VOLTAGE, "Number:Voltage");
+        addChannel(CHANNEL_CURRENT, "Number:Current");
+        addChannel(CHANNEL_LIGHT, "Number:Illuminance");
+        addChannel(CHANNEL_SUPPLYVOLTAGE, "Number:Voltage");
+    }
+
+    @Test
+    public void temperatureChannel() {
+        final DS2438 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), any())).thenReturn(new DecimalType(10.0));
+
+            testDevice.enableChannel(CHANNEL_TEMPERATURE);
+            testDevice.configureChannels();
+            inOrder.verify(mockThingHandler).getThing();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler).readDecimalType(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_TEMPERATURE), eq(new QuantityType<>("10.0 °C")));
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void humidityChannel() {
+        final DS2438 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), any())).thenReturn(new DecimalType(10.0));
+
+            testDevice.enableChannel(CHANNEL_HUMIDITY);
+            testDevice.enableChannel(CHANNEL_ABSOLUTE_HUMIDITY);
+            testDevice.enableChannel(CHANNEL_DEWPOINT);
+            testDevice.configureChannels();
+            inOrder.verify(mockThingHandler).getThing();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler, times(2)).readDecimalType(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_HUMIDITY), eq(new QuantityType<>("10.0 %")));
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_ABSOLUTE_HUMIDITY),
+                    eq(new QuantityType<>("0.9381970824113001000 g/m³")));
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_DEWPOINT),
+                    eq(new QuantityType<>("-20.31395053870025 °C")));
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void voltageChannel() {
+        final DS2438 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), any())).thenReturn(new DecimalType(2.0));
+
+            testDevice.enableChannel(CHANNEL_VOLTAGE);
+            testDevice.configureChannels();
+            inOrder.verify(mockThingHandler).getThing();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler).readDecimalType(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_VOLTAGE), eq(new QuantityType<>("2.0 V")));
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void currentChannel() {
+        final DS2438 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), any())).thenReturn(new DecimalType(2.0));
+
+            testDevice.enableChannel(CHANNEL_CURRENT);
+            testDevice.configureChannels();
+            inOrder.verify(mockThingHandler).getThing();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler).readDecimalType(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_CURRENT), eq(new QuantityType<>("2.0 mA")));
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void lightChannel() {
+        final DS2438 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), any())).thenReturn(new DecimalType(0.1));
+
+            testDevice.enableChannel(CHANNEL_LIGHT);
+            testDevice.configureChannels();
+            inOrder.verify(mockThingHandler).getThing();
+            testDevice.setLightSensorType(LightSensorType.ELABNET_V1);
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler).readDecimalType(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_LIGHT), eq(new QuantityType<>("97442 lx")));
+
+            testDevice.setLightSensorType(LightSensorType.ELABNET_V2);
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler).readDecimalType(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_LIGHT), eq(new QuantityType<>("134 lx")));
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void supplyVoltageChannel() {
+        final DS2438 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), any())).thenReturn(new DecimalType(2.0));
+
+            testDevice.enableChannel(CHANNEL_SUPPLYVOLTAGE);
+            testDevice.configureChannels();
+            inOrder.verify(mockThingHandler).getThing();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler).readDecimalType(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_SUPPLYVOLTAGE), eq(new QuantityType<>("2.0 V")));
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void noChannel() {
+        final DS2438 testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), any())).thenReturn(new DecimalType(2.0));
+
+            testDevice.configureChannels();
+            inOrder.verify(mockThingHandler).getThing();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/device/DeviceTestParent.java

@@ -0,0 +1,135 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.device;
+
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.MockitoAnnotations.initMocks;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.CHANNEL_PRESENT;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.junit.Assert;
+import org.mockito.InOrder;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.device.AbstractOwDevice;
+import org.openhab.binding.onewire.internal.device.OwSensorType;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+import org.openhab.core.config.core.Configuration;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.thing.*;
+import org.openhab.core.thing.binding.builder.ChannelBuilder;
+import org.openhab.core.thing.type.ChannelTypeUID;
+
+/**
+ * Abtract test class for onewire devices.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public abstract class DeviceTestParent<T extends AbstractOwDevice> {
+    private @Nullable Class<T> deviceTestClazz;
+
+    @Mock
+    @NonNullByDefault({})
+    protected OwBaseThingHandler mockThingHandler;
+
+    @Mock
+    @NonNullByDefault({})
+    protected OwserverBridgeHandler mockBridgeHandler;
+
+    @Mock
+    @NonNullByDefault({})
+    protected Thing mockThing;
+
+    protected SensorId testSensorId = new SensorId("00.000000000000");
+
+    public void setupMocks(ThingTypeUID thingTypeUID, Class<T> deviceTestClazz) {
+        this.deviceTestClazz = deviceTestClazz;
+        initMocks(this);
+
+        Mockito.when(mockThingHandler.getThing()).thenReturn(mockThing);
+        Mockito.when(mockThing.getUID()).thenReturn(new ThingUID(thingTypeUID, "testsensor"));
+
+        addChannel(CHANNEL_PRESENT, "Switch");
+    }
+
+    public void addChannel(String channelId, String itemType) {
+        Channel channel = ChannelBuilder.create(new ChannelUID(mockThing.getUID(), channelId), itemType).build();
+        Mockito.when(mockThing.getChannel(channelId)).thenReturn(channel);
+    }
+
+    public void addChannel(String channelId, String itemType, Configuration channelConfiguration) {
+        Channel channel = ChannelBuilder.create(new ChannelUID(mockThing.getUID(), channelId), itemType)
+                .withConfiguration(channelConfiguration).build();
+        Mockito.when(mockThing.getChannel(channelId)).thenReturn(channel);
+    }
+
+    public void addChannel(String channelId, String itemType, ChannelTypeUID channelTypeUID) {
+        Channel channel = ChannelBuilder.create(new ChannelUID(mockThing.getUID(), channelId), itemType)
+                .withType(channelTypeUID).build();
+        Mockito.when(mockThing.getChannel(channelId)).thenReturn(channel);
+    }
+
+    public T instantiateDevice() {
+        final Class<T> deviceTestClazz = this.deviceTestClazz;
+        if (deviceTestClazz == null) {
+            throw new IllegalStateException("deviceTestClazz is null");
+        }
+        try {
+            Constructor<T> constructor = deviceTestClazz.getConstructor(SensorId.class, OwBaseThingHandler.class);
+            T testDevice = constructor.newInstance(testSensorId, mockThingHandler);
+            Assert.assertNotNull(testDevice);
+            return testDevice;
+        } catch (NoSuchMethodException | InstantiationException | IllegalAccessException
+                | InvocationTargetException e) {
+            throw new IllegalStateException(e);
+        }
+    }
+
+    public T instantiateDevice(OwSensorType sensorType) {
+        final Class<T> deviceTestClazz = this.deviceTestClazz;
+        if (deviceTestClazz == null) {
+            throw new IllegalStateException("deviceTestClazz is null");
+        }
+        try {
+            Constructor<T> constructor = deviceTestClazz.getConstructor(SensorId.class, OwSensorType.class,
+                    OwBaseThingHandler.class);
+            T testDevice = constructor.newInstance(testSensorId, sensorType, mockThingHandler);
+            Assert.assertNotNull(testDevice);
+            return testDevice;
+        } catch (NoSuchMethodException | InstantiationException | IllegalAccessException
+                | InvocationTargetException e) {
+            throw new IllegalStateException(e);
+        }
+    }
+
+    public void presenceTest(OnOffType state) {
+        final T testDevice = instantiateDevice();
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(state);
+            testDevice.checkPresence(mockBridgeHandler);
+
+            inOrder.verify(mockThingHandler).updatePresenceStatus(eq(state));
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/device/EDS006xTest.java

@@ -0,0 +1,163 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.device;
+
+import static org.mockito.ArgumentMatchers.*;
+import static org.mockito.Mockito.times;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.InOrder;
+import org.mockito.Mockito;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.device.EDS006x;
+import org.openhab.binding.onewire.internal.device.OwSensorType;
+import org.openhab.core.library.types.DecimalType;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.library.types.QuantityType;
+
+/**
+ * Tests cases for {@link EDS006x}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class EDS006xTest extends DeviceTestParent<EDS006x> {
+
+    @Before
+    public void setupMocks() {
+        setupMocks(THING_TYPE_EDS_ENV, EDS006x.class);
+
+        addChannel(CHANNEL_TEMPERATURE, "Number:Temperature");
+        addChannel(CHANNEL_HUMIDITY, "Number:Dimensionless");
+        addChannel(CHANNEL_ABSOLUTE_HUMIDITY, "Number:Density");
+        addChannel(CHANNEL_DEWPOINT, "Number:Temperature");
+        addChannel(CHANNEL_LIGHT, "Number:Illuminance");
+        addChannel(CHANNEL_PRESSURE, "Number:Pressure");
+    }
+
+    @Test
+    public void temperatureChannel() {
+        final EDS006x testDevice = instantiateDevice(OwSensorType.EDS0068);
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), any())).thenReturn(new DecimalType(10.0));
+
+            testDevice.enableChannel(CHANNEL_TEMPERATURE);
+            testDevice.configureChannels();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler).readDecimalType(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_TEMPERATURE), eq(new QuantityType<>("10.0 °C")));
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void humidityChannel() {
+        final EDS006x testDevice = instantiateDevice(OwSensorType.EDS0068);
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), any())).thenReturn(new DecimalType(10.0));
+
+            testDevice.enableChannel(CHANNEL_HUMIDITY);
+            testDevice.enableChannel(CHANNEL_ABSOLUTE_HUMIDITY);
+            testDevice.enableChannel(CHANNEL_DEWPOINT);
+            testDevice.configureChannels();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler, times(2)).readDecimalType(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_HUMIDITY), eq(new QuantityType<>("10.0 %")));
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_ABSOLUTE_HUMIDITY),
+                    eq(new QuantityType<>("0.9381970824113001000 g/m³")));
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_DEWPOINT),
+                    eq(new QuantityType<>("-20.31395053870025 °C")));
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void pressureChannel() {
+        final EDS006x testDevice = instantiateDevice(OwSensorType.EDS0068);
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), any())).thenReturn(new DecimalType(2.0));
+
+            testDevice.enableChannel(CHANNEL_PRESSURE);
+            testDevice.configureChannels();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler).readDecimalType(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_PRESSURE), eq(new QuantityType<>("2.0 mbar")));
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void lightChannel() {
+        final EDS006x testDevice = instantiateDevice(OwSensorType.EDS0068);
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), any())).thenReturn(new DecimalType(100));
+
+            testDevice.enableChannel(CHANNEL_LIGHT);
+            testDevice.configureChannels();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verify(mockBridgeHandler).readDecimalType(eq(testSensorId), any());
+            inOrder.verify(mockThingHandler).postUpdate(eq(CHANNEL_LIGHT), eq(new QuantityType<>("100 lx")));
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void noChannel() {
+        final EDS006x testDevice = instantiateDevice(OwSensorType.EDS0068);
+        final InOrder inOrder = Mockito.inOrder(mockThingHandler, mockBridgeHandler);
+
+        try {
+            Mockito.when(mockBridgeHandler.checkPresence(testSensorId)).thenReturn(OnOffType.ON);
+            Mockito.when(mockBridgeHandler.readDecimalType(eq(testSensorId), any())).thenReturn(new DecimalType(2.0));
+
+            testDevice.configureChannels();
+            testDevice.refresh(mockBridgeHandler, true);
+
+            inOrder.verifyNoMoreInteractions();
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/internal/BasicThingHandlerTest.java

@@ -0,0 +1,148 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.times;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.CONFIG_ID;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.THING_TYPE_BASIC;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.InOrder;
+import org.mockito.Mockito;
+import org.mockito.MockitoAnnotations;
+import org.openhab.binding.onewire.internal.device.OwSensorType;
+import org.openhab.binding.onewire.internal.handler.BasicThingHandler;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.test.AbstractThingHandlerTest;
+import org.openhab.core.config.core.Configuration;
+import org.openhab.core.thing.Bridge;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.thing.ThingStatus;
+import org.openhab.core.thing.binding.ThingHandler;
+import org.openhab.core.thing.binding.builder.ThingBuilder;
+
+/**
+ * Tests cases for {@link BasicThingHandler}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class BasicThingHandlerTest extends AbstractThingHandlerTest {
+    private static final String TEST_ID = "00.000000000000";
+
+    @Before
+    public void setup() throws OwException {
+        MockitoAnnotations.initMocks(this);
+
+        initializeBridge();
+
+        final Bridge bridge = this.bridge;
+        if (bridge == null) {
+            Assert.fail("bridge is null");
+            return;
+        }
+
+        thingConfiguration.put(CONFIG_ID, TEST_ID);
+
+        thing = ThingBuilder.create(THING_TYPE_BASIC, "testthing").withLabel("Test thing")
+                .withConfiguration(new Configuration(thingConfiguration)).withProperties(thingProperties)
+                .withBridge(bridge.getUID()).build();
+
+        final Thing thing = this.thing;
+        if (thing == null) {
+            Assert.fail("thing is null");
+            return;
+        }
+
+        thingHandler = new BasicThingHandler(thing, stateProvider) {
+            @Override
+            protected @Nullable Bridge getBridge() {
+                return bridge;
+            }
+        };
+
+        initializeHandlerMocks();
+    }
+
+    @Test
+    public void testInitializationEndsWithUnknown() throws OwException {
+        final ThingHandler thingHandler = this.thingHandler;
+        if (thingHandler == null) {
+            Assert.fail("thingHandler is null");
+            return;
+        }
+
+        Mockito.doAnswer(answer -> {
+            return OwSensorType.DS2401;
+        }).when(secondBridgeHandler).getType(any());
+
+        thingHandler.initialize();
+
+        waitForAssert(() -> assertEquals(ThingStatus.UNKNOWN, thingHandler.getThing().getStatusInfo().getStatus()));
+    }
+
+    @Test
+    public void testRefreshAnalog() throws OwException {
+        final OwBaseThingHandler thingHandler = this.thingHandler;
+        final InOrder inOrder = this.inOrder;
+        if (thingHandler == null || inOrder == null) {
+            Assert.fail("prerequisite is null");
+            return;
+        }
+
+        Mockito.doAnswer(answer -> {
+            return OwSensorType.DS18B20;
+        }).when(secondBridgeHandler).getType(any());
+
+        thingHandler.initialize();
+        waitForAssert(() -> assertEquals(ThingStatus.UNKNOWN, thingHandler.getThing().getStatusInfo().getStatus()));
+
+        thingHandler.refresh(bridgeHandler, System.currentTimeMillis());
+
+        inOrder.verify(bridgeHandler, times(1)).checkPresence(new SensorId(TEST_ID));
+        inOrder.verify(bridgeHandler, times(1)).readDecimalType(eq(new SensorId(TEST_ID)), any());
+
+        inOrder.verifyNoMoreInteractions();
+    }
+
+    @Test
+    public void testRefreshDigital() throws OwException {
+        final OwBaseThingHandler thingHandler = this.thingHandler;
+        final InOrder inOrder = this.inOrder;
+        if (thingHandler == null || inOrder == null) {
+            Assert.fail("prerequisite is null");
+            return;
+        }
+
+        Mockito.doAnswer(answer -> {
+            return OwSensorType.DS2408;
+        }).when(secondBridgeHandler).getType(any());
+
+        thingHandler.initialize();
+        waitForAssert(() -> assertEquals(ThingStatus.UNKNOWN, thingHandler.getThing().getStatusInfo().getStatus()));
+
+        thingHandler.refresh(bridgeHandler, System.currentTimeMillis());
+
+        inOrder.verify(bridgeHandler, times(1)).checkPresence(new SensorId(TEST_ID));
+        inOrder.verify(bridgeHandler, times(2)).readBitSet(eq(new SensorId(TEST_ID)), any());
+
+        inOrder.verifyNoMoreInteractions();
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/internal/EDSSensorThingHandlerTest.java

@@ -0,0 +1,130 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.times;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.InOrder;
+import org.mockito.Mockito;
+import org.mockito.MockitoAnnotations;
+import org.openhab.binding.onewire.internal.handler.EDSSensorThingHandler;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.test.AbstractThingHandlerTest;
+import org.openhab.core.config.core.Configuration;
+import org.openhab.core.thing.*;
+import org.openhab.core.thing.binding.ThingHandler;
+import org.openhab.core.thing.binding.builder.ChannelBuilder;
+import org.openhab.core.thing.binding.builder.ThingBuilder;
+
+/**
+ * Tests cases for {@link EDSSensorThingHandler}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class EDSSensorThingHandlerTest extends AbstractThingHandlerTest {
+    private static final String TEST_ID = "00.000000000000";
+    private static final ThingUID THING_UID = new ThingUID(THING_TYPE_EDS_ENV, "testthing");
+    private static final ChannelUID CHANNEL_UID_TEMPERATURE = new ChannelUID(THING_UID, CHANNEL_TEMPERATURE);
+    private static final ChannelUID CHANNEL_UID_HUMIDITY = new ChannelUID(THING_UID, CHANNEL_HUMIDITY);
+    private static final ChannelUID CHANNEL_UID_ABSOLUTE_HUMIDITY = new ChannelUID(THING_UID,
+            CHANNEL_ABSOLUTE_HUMIDITY);
+    private static final ChannelUID CHANNEL_UID_DEWPOINT = new ChannelUID(THING_UID, CHANNEL_DEWPOINT);
+
+    @Before
+    public void setup() throws OwException {
+        MockitoAnnotations.initMocks(this);
+
+        initializeBridge();
+
+        final Bridge bridge = this.bridge;
+        if (bridge == null) {
+            Assert.fail("bridge is null");
+            return;
+        }
+
+        thingConfiguration.put(CONFIG_ID, TEST_ID);
+
+        channels.add(ChannelBuilder.create(CHANNEL_UID_TEMPERATURE, "Number:Temperature").build());
+        channels.add(ChannelBuilder.create(CHANNEL_UID_HUMIDITY, "Number:Dimensionless").build());
+        channels.add(ChannelBuilder.create(CHANNEL_UID_ABSOLUTE_HUMIDITY, "Number:Density").build());
+        channels.add(ChannelBuilder.create(CHANNEL_UID_DEWPOINT, "Number:Temperature").build());
+
+        thing = ThingBuilder.create(THING_TYPE_EDS_ENV, "testthing").withLabel("Test thing").withChannels(channels)
+                .withConfiguration(new Configuration(thingConfiguration)).withProperties(thingProperties)
+                .withBridge(bridge.getUID()).build();
+
+        final Thing thing = this.thing;
+        if (thing == null) {
+            Assert.fail("thing is null");
+            return;
+        }
+
+        thingHandler = new EDSSensorThingHandler(thing, stateProvider) {
+            @Override
+            protected @Nullable Bridge getBridge() {
+                return bridge;
+            }
+        };
+
+        initializeHandlerMocks();
+
+        Mockito.doAnswer(answer -> {
+            return new OwPageBuffer("EDS0065 ".getBytes());
+        }).when(secondBridgeHandler).readPages(any());
+    }
+
+    @Test
+    public void testInitializationEndsWithUnknown() {
+        final ThingHandler thingHandler = this.thingHandler;
+        if (thingHandler == null) {
+            Assert.fail("thingHandler is null");
+            return;
+        }
+
+        thingHandler.initialize();
+
+        waitForAssert(() -> assertEquals(ThingStatus.UNKNOWN, thingHandler.getThing().getStatusInfo().getStatus()));
+    }
+
+    @Test
+    public void testRefresh() throws OwException {
+        final OwBaseThingHandler thingHandler = this.thingHandler;
+        final InOrder inOrder = this.inOrder;
+        if (thingHandler == null || inOrder == null) {
+            Assert.fail("prerequisite is null");
+            return;
+        }
+
+        thingHandler.initialize();
+
+        // needed to determine initialization is finished
+        waitForAssert(() -> assertEquals(ThingStatus.UNKNOWN, thingHandler.getThing().getStatusInfo().getStatus()));
+
+        thingHandler.refresh(bridgeHandler, System.currentTimeMillis());
+
+        inOrder.verify(bridgeHandler, times(1)).checkPresence(new SensorId(TEST_ID));
+        inOrder.verify(bridgeHandler, times(2)).readDecimalType(eq(new SensorId(TEST_ID)), any());
+
+        inOrder.verifyNoMoreInteractions();
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/internal/MultisensorThingHandlerTest.java

@@ -0,0 +1,126 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.times;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.CONFIG_ID;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.THING_TYPE_MS_TX;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.InOrder;
+import org.mockito.Mockito;
+import org.mockito.MockitoAnnotations;
+import org.openhab.binding.onewire.internal.device.OwSensorType;
+import org.openhab.binding.onewire.internal.handler.BasicMultisensorThingHandler;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.test.AbstractThingHandlerTest;
+import org.openhab.core.config.core.Configuration;
+import org.openhab.core.thing.Bridge;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.thing.ThingStatus;
+import org.openhab.core.thing.binding.ThingHandler;
+import org.openhab.core.thing.binding.builder.ThingBuilder;
+
+/**
+ * Tests cases for {@link BasicMultisensorThingHandler}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class MultisensorThingHandlerTest extends AbstractThingHandlerTest {
+    private static final String TEST_ID = "00.000000000000";
+
+    @Before
+    public void setup() throws OwException {
+        MockitoAnnotations.initMocks(this);
+
+        initializeBridge();
+
+        final Bridge bridge = this.bridge;
+        if (bridge == null) {
+            Assert.fail("bridge is null");
+            return;
+        }
+
+        thingConfiguration.put(CONFIG_ID, TEST_ID);
+
+        thing = ThingBuilder.create(THING_TYPE_MS_TX, "testthing").withLabel("Test thing").withChannels(channels)
+                .withConfiguration(new Configuration(thingConfiguration)).withProperties(thingProperties)
+                .withBridge(bridge.getUID()).build();
+
+        final Thing thing = this.thing;
+        if (thing == null) {
+            Assert.fail("thing is null");
+            return;
+        }
+
+        thingHandler = new BasicMultisensorThingHandler(thing, stateProvider) {
+            @Override
+            protected @Nullable Bridge getBridge() {
+                return bridge;
+            }
+        };
+
+        initializeHandlerMocks();
+
+        Mockito.doAnswer(answer -> {
+            return OwSensorType.DS2438;
+        }).when(secondBridgeHandler).getType(any());
+
+        Mockito.doAnswer(answer -> {
+            OwPageBuffer pageBuffer = new OwPageBuffer(8);
+            pageBuffer.setByte(3, 0, (byte) 0x19);
+            return pageBuffer;
+        }).when(secondBridgeHandler).readPages(any());
+    }
+
+    @Test
+    public void testInitializationEndsWithUnknown() {
+        final ThingHandler thingHandler = this.thingHandler;
+        if (thingHandler == null) {
+            Assert.fail("thingHandler is null");
+            return;
+        }
+        thingHandler.initialize();
+
+        waitForAssert(() -> assertEquals(ThingStatus.UNKNOWN, thingHandler.getThing().getStatusInfo().getStatus()));
+    }
+
+    @Test
+    public void testRefresh() throws OwException {
+        final OwBaseThingHandler thingHandler = this.thingHandler;
+        final InOrder inOrder = this.inOrder;
+        if (thingHandler == null || inOrder == null) {
+            Assert.fail("prerequisite is null");
+            return;
+        }
+        thingHandler.initialize();
+
+        // needed to determine initialization is finished
+        waitForAssert(() -> assertEquals(ThingStatus.UNKNOWN, thingHandler.getThing().getStatusInfo().getStatus()));
+
+        thingHandler.refresh(bridgeHandler, System.currentTimeMillis());
+
+        inOrder.verify(bridgeHandler, times(1)).checkPresence(new SensorId(TEST_ID));
+        inOrder.verify(bridgeHandler, times(3)).readDecimalType(eq(new SensorId(TEST_ID)), any());
+
+        inOrder.verifyNoMoreInteractions();
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/internal/OwserverBridgeHandlerTest.java

@@ -0,0 +1,171 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.internal;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.*;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.*;
+import static org.mockito.MockitoAnnotations.initMocks;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+import org.openhab.binding.onewire.internal.owserver.OwserverConnection;
+import org.openhab.binding.onewire.internal.owserver.OwserverConnectionState;
+import org.openhab.core.config.core.Configuration;
+import org.openhab.core.test.java.JavaTest;
+import org.openhab.core.thing.Bridge;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.thing.ThingStatus;
+import org.openhab.core.thing.ThingStatusInfo;
+import org.openhab.core.thing.binding.ThingHandlerCallback;
+import org.openhab.core.thing.binding.builder.BridgeBuilder;
+
+/**
+ * Tests cases for {@link OwserverBridgeHandler}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class OwserverBridgeHandlerTest extends JavaTest {
+
+    private static final String TEST_HOST = "foo.bar";
+    private static final int TEST_PORT = 4711;
+    Map<String, Object> bridgeProperties = new HashMap<>();
+
+    @Mock
+    @NonNullByDefault({})
+    private OwserverConnection owserverConnection;
+
+    @Mock
+    @NonNullByDefault({})
+    private ThingHandlerCallback thingHandlerCallback;
+
+    private @Nullable OwserverBridgeHandler bridgeHandler;
+    private @Nullable Bridge bridge;
+
+    @Before
+    public void setup() {
+        bridgeProperties.put(CONFIG_ADDRESS, TEST_HOST);
+        bridgeProperties.put(CONFIG_PORT, TEST_PORT);
+
+        initMocks(this);
+
+        bridge = BridgeBuilder.create(THING_TYPE_OWSERVER, "owserver").withLabel("owserver")
+                .withConfiguration(new Configuration(bridgeProperties)).build();
+
+        doAnswer(answer -> {
+            ((Thing) answer.getArgument(0)).setStatusInfo(answer.getArgument(1));
+            return null;
+        }).when(thingHandlerCallback).statusUpdated(any(), any());
+
+        final Bridge bridge = this.bridge;
+
+        if (bridge == null) {
+            Assert.fail("bridge is null");
+            return;
+        }
+
+        final OwserverBridgeHandler bridgeHandler = new OwserverBridgeHandler(bridge, owserverConnection);
+        bridgeHandler.getThing().setHandler(bridgeHandler);
+        bridgeHandler.setCallback(thingHandlerCallback);
+        this.bridgeHandler = bridgeHandler;
+    }
+
+    @After
+    public void tearDown() {
+        final OwserverBridgeHandler bridgeHandler = this.bridgeHandler;
+        if (bridgeHandler != null) {
+            bridgeHandler.dispose();
+        }
+    }
+
+    @Test
+    public void testInitializationStartsConnectionWithOptions() {
+        final OwserverBridgeHandler bridgeHandler = this.bridgeHandler;
+        if (bridgeHandler == null) {
+            Assert.fail("bridgeHandler is null");
+            return;
+        }
+
+        bridgeHandler.initialize();
+
+        Mockito.verify(owserverConnection).setHost(TEST_HOST);
+        Mockito.verify(owserverConnection).setPort(TEST_PORT);
+
+        Mockito.verify(owserverConnection, timeout(5000)).start();
+    }
+
+    @Test
+    public void testInitializationReportsRefreshableOnSuccessfullConnection() {
+        final OwserverBridgeHandler bridgeHandler = this.bridgeHandler;
+        if (bridgeHandler == null) {
+            Assert.fail("bridgeHandler is null");
+            return;
+        }
+
+        Mockito.doAnswer(answer -> {
+            bridgeHandler.reportConnectionState(OwserverConnectionState.OPENED);
+            return null;
+        }).when(owserverConnection).start();
+
+        bridgeHandler.initialize();
+
+        ArgumentCaptor<ThingStatusInfo> statusCaptor = ArgumentCaptor.forClass(ThingStatusInfo.class);
+        waitForAssert(() -> {
+            verify(thingHandlerCallback, times(2)).statusUpdated(eq(bridge), statusCaptor.capture());
+        });
+        assertThat(statusCaptor.getAllValues().get(0).getStatus(), is(ThingStatus.UNKNOWN));
+        assertThat(statusCaptor.getAllValues().get(1).getStatus(), is(ThingStatus.ONLINE));
+
+        waitForAssert(() -> assertTrue(bridgeHandler.isRefreshable()));
+    }
+
+    @Test
+    public void testInitializationReportsNotRefreshableOnFailedConnection() {
+        final OwserverBridgeHandler bridgeHandler = this.bridgeHandler;
+        if (bridgeHandler == null) {
+            Assert.fail("bridgeHandler is null");
+            return;
+        }
+
+        Mockito.doAnswer(answer -> {
+            bridgeHandler.reportConnectionState(OwserverConnectionState.FAILED);
+            return null;
+        }).when(owserverConnection).start();
+
+        bridgeHandler.initialize();
+
+        ArgumentCaptor<ThingStatusInfo> statusCaptor = ArgumentCaptor.forClass(ThingStatusInfo.class);
+        waitForAssert(() -> {
+            verify(thingHandlerCallback, times(2)).statusUpdated(eq(bridge), statusCaptor.capture());
+        });
+        assertThat(statusCaptor.getAllValues().get(0).getStatus(), is(ThingStatus.UNKNOWN));
+        assertThat(statusCaptor.getAllValues().get(1).getStatus(), is(ThingStatus.OFFLINE));
+
+        waitForAssert(() -> assertFalse(bridgeHandler.isRefreshable()));
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/owserver/OwserverConnectionTest.java

@@ -0,0 +1,224 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.owserver;
+
+import static org.junit.Assert.*;
+import static org.mockito.Mockito.*;
+import static org.mockito.MockitoAnnotations.initMocks;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.OwPageBuffer;
+import org.openhab.binding.onewire.internal.SensorId;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+import org.openhab.binding.onewire.internal.owserver.OwserverConnection;
+import org.openhab.binding.onewire.internal.owserver.OwserverConnectionState;
+import org.openhab.binding.onewire.test.OwserverTestServer;
+import org.openhab.core.library.types.DecimalType;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.test.TestPortUtil;
+import org.openhab.core.test.java.JavaTest;
+import org.openhab.core.types.State;
+
+/**
+ * Tests cases for {@link OwserverConnection}.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class OwserverConnectionTest extends JavaTest {
+    private static final String TEST_HOST = "127.0.0.1";
+
+    private @Nullable OwserverTestServer testServer;
+    private @Nullable OwserverConnection owserverConnection;
+
+    @Mock
+    private @NonNullByDefault({}) OwserverBridgeHandler bridgeHandler;
+
+    private int testPort;
+
+    @Before
+    public void setup() throws Exception {
+        initMocks(this);
+
+        CompletableFuture<Boolean> serverStarted = new CompletableFuture<>();
+        testPort = TestPortUtil.findFreePort();
+        try {
+            final OwserverTestServer testServer = new OwserverTestServer(testPort);
+            testServer.startServer(serverStarted);
+            this.testServer = testServer;
+        } catch (IOException e) {
+            fail("could not start test server");
+        }
+
+        final OwserverConnection owserverConnection = new OwserverConnection(bridgeHandler);
+        owserverConnection.setHost(TEST_HOST);
+        owserverConnection.setPort(testPort);
+        this.owserverConnection = owserverConnection;
+
+        serverStarted.get(); // wait for the server thread to start
+    }
+
+    @After
+    public void tearDown() {
+        try {
+            final OwserverTestServer testServer = this.testServer;
+            if (testServer != null) {
+                testServer.stopServer();
+            }
+        } catch (IOException e) {
+            fail("could not stop test server");
+        }
+    }
+
+    @Test
+    public void successfullConnectionReportedToBridgeHandler() {
+        final OwserverConnection owserverConnection = this.owserverConnection;
+        if (owserverConnection == null) {
+            Assert.fail("connection is null");
+            return;
+        }
+        owserverConnection.start();
+
+        Mockito.verify(bridgeHandler).reportConnectionState(OwserverConnectionState.OPENED);
+    }
+
+    @Test
+    public void failedConnectionReportedToBridgeHandler() {
+        final OwserverConnection owserverConnection = this.owserverConnection;
+        if (owserverConnection == null) {
+            Assert.fail("connection is null");
+            return;
+        }
+        owserverConnection.setPort(1);
+
+        owserverConnection.start();
+
+        Mockito.verify(bridgeHandler, timeout(100)).reportConnectionState(OwserverConnectionState.FAILED);
+    }
+
+    @Test
+    public void testGetDirectory() {
+        final OwserverConnection owserverConnection = this.owserverConnection;
+        if (owserverConnection == null) {
+            Assert.fail("connection is null");
+            return;
+        }
+        owserverConnection.start();
+        try {
+            List<SensorId> directory = owserverConnection.getDirectory("/");
+
+            assertEquals(3, directory.size());
+            assertEquals(new SensorId("/00.0123456789ab"), directory.get(0));
+            assertEquals(new SensorId("/00.0123456789ac"), directory.get(1));
+            assertEquals(new SensorId("/00.0123456789ad"), directory.get(2));
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void testCheckPresence() {
+        final OwserverConnection owserverConnection = this.owserverConnection;
+        if (owserverConnection == null) {
+            Assert.fail("connection is null");
+            return;
+        }
+        owserverConnection.start();
+        State presence = owserverConnection.checkPresence("present");
+        assertEquals(OnOffType.ON, presence);
+
+        presence = owserverConnection.checkPresence("notpresent");
+        assertEquals(OnOffType.OFF, presence);
+    }
+
+    @Test
+    public void testReadDecimalType() {
+        final OwserverConnection owserverConnection = this.owserverConnection;
+        if (owserverConnection == null) {
+            Assert.fail("connection is null");
+            return;
+        }
+        owserverConnection.start();
+        try {
+            DecimalType number = (DecimalType) owserverConnection.readDecimalType("testsensor/decimal");
+
+            assertEquals(17.4, number.doubleValue(), 0.01);
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void testReadDecimalTypeArray() {
+        final OwserverConnection owserverConnection = this.owserverConnection;
+        if (owserverConnection == null) {
+            Assert.fail("connection is null");
+            return;
+        }
+        owserverConnection.start();
+        try {
+            List<State> numbers = owserverConnection.readDecimalTypeArray("testsensor/decimalarray");
+
+            assertEquals(3834, ((DecimalType) numbers.get(0)).intValue());
+            assertEquals(0, ((DecimalType) numbers.get(1)).intValue());
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void testGetPages() {
+        final OwserverConnection owserverConnection = this.owserverConnection;
+        if (owserverConnection == null) {
+            Assert.fail("connection is null");
+            return;
+        }
+        owserverConnection.start();
+        try {
+            OwPageBuffer pageBuffer = owserverConnection.readPages("testsensor");
+
+            assertEquals(31, pageBuffer.getByte(5, 7));
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+
+    @Test
+    public void testWriteDecimalType() {
+        final OwserverConnection owserverConnection = this.owserverConnection;
+        if (owserverConnection == null) {
+            Assert.fail("connection is null");
+            return;
+        }
+        owserverConnection.start();
+        try {
+            owserverConnection.writeDecimalType("testsensor/decimal", new DecimalType(2009));
+
+            Mockito.verify(bridgeHandler, never()).reportConnectionState(OwserverConnectionState.FAILED);
+        } catch (OwException e) {
+            Assert.fail("caught unexpected OwException");
+        }
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/test/AbstractThingHandlerTest.java

@@ -0,0 +1,143 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.test;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.openhab.binding.onewire.internal.OwBindingConstants.THING_TYPE_OWSERVER;
+
+import java.util.ArrayList;
+import java.util.BitSet;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.junit.After;
+import org.junit.Assert;
+import org.mockito.InOrder;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.openhab.binding.onewire.internal.OwDynamicStateDescriptionProvider;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
+import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
+import org.openhab.core.config.core.Configuration;
+import org.openhab.core.library.types.DecimalType;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.test.java.JavaTest;
+import org.openhab.core.thing.Bridge;
+import org.openhab.core.thing.Channel;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.thing.binding.ThingHandler;
+import org.openhab.core.thing.binding.ThingHandlerCallback;
+import org.openhab.core.thing.binding.builder.BridgeBuilder;
+
+/**
+ * Base class for thing handler tests.
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public abstract class AbstractThingHandlerTest extends JavaTest {
+
+    protected Map<String, Object> bridgeProperties = new HashMap<>();
+    protected Map<String, String> thingProperties = new HashMap<>();
+    protected Map<String, Object> thingConfiguration = new HashMap<>();
+    protected Map<String, Object> channelProperties = new HashMap<>();
+
+    @Mock
+    @NonNullByDefault({})
+    protected ThingHandlerCallback thingHandlerCallback;
+
+    @Mock
+    @NonNullByDefault({})
+    protected OwDynamicStateDescriptionProvider stateProvider;
+
+    @Mock
+    @NonNullByDefault({})
+    protected ThingHandlerCallback bridgeHandlerCallback;
+
+    @Mock
+    @NonNullByDefault({})
+    protected OwserverBridgeHandler bridgeHandler;
+
+    @Mock
+    @NonNullByDefault({})
+    protected OwserverBridgeHandler secondBridgeHandler;
+
+    protected List<Channel> channels = new ArrayList<>();
+
+    protected @Nullable Bridge bridge;
+    protected @Nullable Thing thing;
+    protected @Nullable OwBaseThingHandler thingHandler;
+
+    protected @Nullable InOrder inOrder;
+
+    @After
+    public void tearDown() {
+        final ThingHandler thingHandler = this.thingHandler;
+        if (thingHandler != null) {
+            thingHandler.dispose();
+        }
+    }
+
+    protected void initializeHandlerMocks() {
+        final ThingHandler thingHandler = this.thingHandler;
+        if (thingHandler == null) {
+            Assert.fail("thingHandler is null");
+            return;
+        }
+
+        thingHandler.getThing().setHandler(thingHandler);
+        thingHandler.setCallback(thingHandlerCallback);
+
+        Mockito.doAnswer(answer -> {
+            ((Thing) answer.getArgument(0)).setStatusInfo(answer.getArgument(1));
+            return null;
+        }).when(thingHandlerCallback).statusUpdated(any(), any());
+
+        inOrder = Mockito.inOrder(bridgeHandler);
+    }
+
+    public void initializeBridge() throws OwException {
+        bridgeProperties = new HashMap<>();
+        final Bridge bridge = BridgeBuilder.create(THING_TYPE_OWSERVER, "testbridge").withLabel("Test Bridge")
+                .withConfiguration(new Configuration(bridgeProperties)).build();
+        bridge.setHandler(bridgeHandler);
+        this.bridge = bridge;
+
+        Mockito.doAnswer(answer -> {
+            ((Thing) answer.getArgument(0)).setStatusInfo(answer.getArgument(1));
+            return null;
+        }).when(bridgeHandlerCallback).statusUpdated(any(), any());
+
+        Mockito.doAnswer(answer -> OnOffType.ON).when(bridgeHandler).checkPresence(any());
+
+        Mockito.doAnswer(answer -> new DecimalType(10)).when(bridgeHandler).readDecimalType(any(), any());
+
+        Mockito.doAnswer(answer -> new BitSet(8)).when(bridgeHandler).readBitSet(any(), any());
+
+        Mockito.doAnswer(answer -> {
+            final OwBaseThingHandler thingHandler = this.thingHandler;
+            if (thingHandler == null) {
+                Assert.fail("thingHandler is null");
+                return null;
+            }
+
+            thingHandler.updateSensorProperties(secondBridgeHandler);
+            thingHandler.initialize();
+            return null;
+        }).when(bridgeHandler).scheduleForPropertiesUpdate(any());
+    }
+}

bundles/org.openhab.binding.onewire/src/test/java/org/openhab/binding/onewire/test/OwserverTestServer.java

@@ -0,0 +1,142 @@
+/**
+ * Copyright (c) 2010-2020 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.onewire.test;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.junit.Assert;
+import org.openhab.binding.onewire.internal.OwException;
+import org.openhab.binding.onewire.internal.OwPageBuffer;
+import org.openhab.binding.onewire.internal.owserver.OwserverPacket;
+import org.openhab.binding.onewire.internal.owserver.OwserverPacketType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The {@link OwserverTestServer} defines a server for testing the OwserverConnection class
+ *
+ * @author Jan N. Klug - Initial contribution
+ */
+@NonNullByDefault
+public class OwserverTestServer {
+    private final Logger logger = LoggerFactory.getLogger(OwserverTestServer.class);
+
+    private final ServerSocket serverSocket;
+    private boolean isRunning = false;
+
+    public OwserverTestServer(int port) throws IOException {
+        serverSocket = new ServerSocket(port);
+    }
+
+    public void startServer(CompletableFuture<Boolean> serverStarted) throws IOException {
+        isRunning = true;
+
+        new Thread() {
+            @Override
+            public void run() {
+                OwserverPacket receivedPacket;
+                List<OwserverPacket> answerPackets;
+                serverStarted.complete(true);
+                try {
+                    while (isRunning) {
+                        final Socket connectionSocket = serverSocket.accept();
+                        final DataInputStream inputStream = new DataInputStream(connectionSocket.getInputStream());
+                        final DataOutputStream outputStream = new DataOutputStream(connectionSocket.getOutputStream());
+
+                        receivedPacket = new OwserverPacket(inputStream, OwserverPacketType.REQUEST);
+                        logger.debug("received {}", receivedPacket);
+
+                        answerPackets = processPacket(receivedPacket);
+
+                        answerPackets.forEach(answerPacket -> {
+                            logger.debug("answering {}", answerPacket);
+                            try {
+                                outputStream.write(answerPacket.toBytes());
+                            } catch (IOException e) {
+                                logger.error("I/O Error: {}", e.getMessage());
+                            }
+                        });
+                    }
+                } catch (IOException e) {
+                    logger.error("I/O Error: {}", e.getMessage());
+                } catch (OwException e) {
+                    Assert.fail("caught unexpected OwException");
+                }
+            }
+        }.start();
+    }
+
+    public void stopServer() throws IOException {
+        isRunning = false;
+        serverSocket.close();
+    }
+
+    private List<OwserverPacket> processPacket(OwserverPacket inputPacket) {
+        List<OwserverPacket> returnPackets = new ArrayList<>();
+        OwserverPacket returnPacket = new OwserverPacket(OwserverPacketType.RETURN);
+        switch (inputPacket.getMessageType()) {
+            case NOP:
+                returnPacket.setPayload("");
+                returnPackets.add(returnPacket);
+                break;
+            case DIRALL:
+                returnPacket.setPayload("/00.0123456789ab,/00.0123456789ac,/00.0123456789ad,/statistics");
+                returnPackets.add(returnPacket);
+                returnPacket = new OwserverPacket(OwserverPacketType.RETURN);
+                break;
+            case PRESENT:
+                switch (inputPacket.getPayloadString()) {
+                    case "present":
+                        break;
+                    default:
+                        returnPacket.setReturnCode(-1);
+                }
+                returnPacket.setPayload(inputPacket.getPayloadString());
+                returnPackets.add(returnPacket);
+                break;
+            case READ:
+                switch (inputPacket.getPayloadString()) {
+                    case "testsensor/pages/page.ALL":
+                        OwPageBuffer pageBuffer = new OwPageBuffer(8);
+                        pageBuffer.setByte(5, 7, (byte) 31);
+                        returnPacket.setPayload(pageBuffer);
+                        returnPackets.add(returnPacket);
+                        break;
+                    case "testsensor/decimal":
+                        returnPacket.setPayload("    17.4");
+                        returnPackets.add(returnPacket);
+                        break;
+                    case "testsensor/decimalarray":
+                        returnPacket.setPayload("        3834,           0");
+                        returnPackets.add(returnPacket);
+                        break;
+                    default:
+                }
+                break;
+            case WRITE:
+                returnPackets.add(returnPacket);
+                break;
+            default:
+
+        }
+        return returnPackets;
+    }
+}