* [miio] add support for BT Gateway switch on chuangmi.plug.212a01 Signed-off-by: Marcel Verpaalen <marcel@verpaalen.com> * [miio] improve conversion & add test for it Signed-off-by: Marcel Verpaalen <marcel@verpaalen.com> * [miio] add one empty string test Signed-off-by: Marcel Verpaalen <marcel@verpaalen.com> * [miio] remove unnessesary exceptions Signed-off-by: Marcel Verpaalen <marcel@verpaalen.com> * [miio] add one more test for different inputs Signed-off-by: Marcel Verpaalen <marcel@verpaalen.com> * [miio] typo Signed-off-by: Marcel Verpaalen <marcel@verpaalen.com>