2023-08-29
 - added 4th input
 - changed default baudrate to 115200
 
2023-07-03
 - revert last changes
 - change structure of config
 - add option to send retained MQTT messages for each device
 - add option to send only if value changed for each device
 - add option to send last change timestamp on a 2nd topic for each device
	
2023-07-03
 - added config option 'filterUnchanged' so that filtering on state change can be disabled now (pin state is sent by the MCU every minute by default - now this will be published every time on MQTT if filterUnchanged = False)
	
2023-05-30
 - separate config in python daemon

2023-03-14
 - initial checkin