- add Makefile

- improve README.md
- smaller fixes regarding configuration

internal/PinControlService/Pin.go

@@ -10,7 +10,7 @@ type Pin struct {
 	Name              string
 	Direction         PinDirection
 	PullConfig        PinPull
-	InitialState      PinCommand
+	InitialState      *PinCommand
 	PinHandle         HardwarePinInterface
 	SendPollingEvents bool
 	SendChangeEvents  bool
@@ -37,11 +37,7 @@ func NewPin(config PinConfig) Pin {
 		p.SendChangeEvents = true
 	}
 
-	if config.InitialState != "" {
-		p.InitialState = PinCommand(config.InitialState)
-	} else {
-		p.InitialState = Off
-	}
+	p.InitialState = config.InitialState
 
 	return p
 }
@@ -80,8 +76,11 @@ func (p *Pin) Configure() {
 	} else if p.Direction == Output {
 		log.Infof("configuring pin %s (pin no: %d) as Output", p.Name, p.Id)
 		p.PinHandle.Output()
-		log.Infof("set initial state \"%s\" for pin %s (pin no: %d)", p.InitialState, p.Name, p.Id)
-		_ = p.Command(p.InitialState)
+		if p.InitialState != nil {
+			log.Infof("set initial state \"%s\" for pin %s (pin no: %d)", p.InitialState, p.Name, p.Id)
+			_ = p.Command(*p.InitialState)
+		}
+
 	}
 
 	p.PinHandle.Detect(AnyEdge)
@@ -92,6 +91,8 @@ func (p *Pin) Configure() {
 		p.PinHandle.PullDown()
 	} else if p.PullConfig == PullOff {
 		p.PinHandle.PullOff()
+	} else {
+		log.Errorf("unknown config value \"%s\" for pull-config", p.PullConfig)
 	}
 
 }