@tekka Thank you very much! I was able to build a simple sensor I will test it soon and report back.

@tekka Thank you again It works! I made a custom board with STM32L073RZ and tested it with MySensor over my RS485 network. As a first step I made only a simple sensor with one digital input now I start to write a sophistacated raditaor valve controller with MySenesors library

Hi,
I have a problem with the binding. Sometimes it drops the connection to the broker without any error message.
System: OH 3.0.1 → MySensensors MQTT Bridge → Mosquitto → MySensors MQTT Gateway

Fresh OpenHab install on debian, system start without any error, running about 1 day, then cannot communicate via MQTT. Messages does not arrive from Mosquitto to OH, also no outgoing messages to the broker. Checked mosquitto with MQTT Explorer, thats seems working, there are messages from the MySensorsGW.
There aren’t any clue in logs ( working untill ~2021-04-13 10:27:12:757) :

2021-04-13 10:27:00.947 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - MQTT message received. Topic: mygateway1-out/11/5/1/1/2, Message: 0
2021-04-13 10:27:00.947 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Message topic part: 11/5/1/1/2
2021-04-13 10:27:00.947 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Converted MQTT message to MySensors Serial format. Sending on to bridge: 11;5;1;1;2;0
2021-04-13 10:27:00.949 [DEBUG] [rsAbstractConnection$MySensorsReader] - Message from gateway received: 11;5;1;1;2;0
2021-04-13 10:27:00.949 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Node 11 found in gateway
2021-04-13 10:27:00.949 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Child 5 found in node 11
2021-04-13 10:27:00.949 [DEBUG] [ensors.handler.MySensorsThingHandler] - Updating channel: status(V_STATUS) value to: OFF
2021-04-13 10:27:00.950 [DEBUG] [ensors.handler.MySensorsThingHandler] - Setting last update for node/child 11/5 to 2021-04-13T10:27:00.000+0200
2021-04-13 10:27:01.001 [DEBUG] [rsAbstractConnection$MySensorsWriter] - Sending to MySensors: 11;6;1;1;2;0
2021-04-13 10:27:01.002 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Sending MQTT Message: Topic: mygateway1-in, Message: 11;6;1;1;2;0
2021-04-13 10:27:01.026 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - MQTT message received. Topic: mygateway1-out/11/6/1/1/2, Message: 0
2021-04-13 10:27:01.026 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Message topic part: 11/6/1/1/2
2021-04-13 10:27:01.027 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Converted MQTT message to MySensors Serial format. Sending on to bridge: 11;6;1;1;2;0
2021-04-13 10:27:01.031 [DEBUG] [rsAbstractConnection$MySensorsReader] - Message from gateway received: 11;6;1;1;2;0
2021-04-13 10:27:01.031 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Node 11 found in gateway
2021-04-13 10:27:01.031 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Child 6 found in node 11
2021-04-13 10:27:01.032 [DEBUG] [ensors.handler.MySensorsThingHandler] - Updating channel: status(V_STATUS) value to: OFF
2021-04-13 10:27:01.032 [DEBUG] [ensors.handler.MySensorsThingHandler] - Setting last update for node/child 11/6 to 2021-04-13T10:27:01.000+0200
2021-04-13 10:27:01.102 [INFO ] [rsAbstractConnection$MySensorsWriter] - ACK received for message: 11;5;1;1;2;0

2021-04-13 10:27:01.103 [INFO ] [rsAbstractConnection$MySensorsWriter] - ACK received for message: 9;6;1;1;3;0

2021-04-13 10:27:01.103 [INFO ] [rsAbstractConnection$MySensorsWriter] - ACK received for message: 11;6;1;1;2;0

2021-04-13 10:27:02.727 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - MQTT message received. Topic: mygateway1-out/11/13/1/0/24, Message: 0
2021-04-13 10:27:02.728 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Message topic part: 11/13/1/0/24
2021-04-13 10:27:02.728 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Converted MQTT message to MySensors Serial format. Sending on to bridge: 11;13;1;0;24;0
2021-04-13 10:27:02.732 [DEBUG] [rsAbstractConnection$MySensorsReader] - Message from gateway received: 11;13;1;0;24;0
2021-04-13 10:27:02.733 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Node 11 found in gateway
2021-04-13 10:27:02.733 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Child 13 found in node 11
2021-04-13 10:27:02.734 [DEBUG] [ensors.handler.MySensorsThingHandler] - Updating channel: var1(V_VAR1) value to: 0
2021-04-13 10:27:02.734 [DEBUG] [ensors.handler.MySensorsThingHandler] - Setting last update for node/child 11/13 to 2021-04-13T10:27:02.000+0200
2021-04-13 10:27:02.826 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - MQTT message received. Topic: mygateway1-out/11/14/1/0/2, Message: 0
2021-04-13 10:27:02.826 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Message topic part: 11/14/1/0/2
2021-04-13 10:27:02.827 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Converted MQTT message to MySensors Serial format. Sending on to bridge: 11;14;1;0;2;0
2021-04-13 10:27:02.836 [DEBUG] [rsAbstractConnection$MySensorsReader] - Message from gateway received: 11;14;1;0;2;0
2021-04-13 10:27:02.836 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Node 11 found in gateway
2021-04-13 10:27:02.837 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Child 14 found in node 11
2021-04-13 10:27:02.837 [DEBUG] [ensors.handler.MySensorsThingHandler] - Updating channel: status(V_STATUS) value to: OFF
2021-04-13 10:27:02.838 [DEBUG] [ensors.handler.MySensorsThingHandler] - Setting last update for node/child 11/14 to 2021-04-13T10:27:02.000+0200
2021-04-13 10:27:04.050 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - MQTT message received. Topic: mygateway1-out/7/255/3/0/22, Message: 1260498882
2021-04-13 10:27:04.051 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Message topic part: 7/255/3/0/22
2021-04-13 10:27:04.052 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Converted MQTT message to MySensors Serial format. Sending on to bridge: 7;255;3;0;22;1260498882
2021-04-13 10:27:04.052 [DEBUG] [rsAbstractConnection$MySensorsReader] - Message from gateway received: 7;255;3;0;22;1260498882
2021-04-13 10:27:04.725 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - MQTT message received. Topic: mygateway1-out/9/255/3/0/22, Message: 568774403
2021-04-13 10:27:04.726 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Message topic part: 9/255/3/0/22
2021-04-13 10:27:04.726 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Converted MQTT message to MySensors Serial format. Sending on to bridge: 9;255;3;0;22;568774403
2021-04-13 10:27:12.747 [INFO ] [org.openhab.core.model.script.Info  ] - Hot Water Heating: Off
2021-04-13 10:27:12.755 [DEBUG] [ensors.handler.MySensorsThingHandler] - Adapter: class org.openhab.binding.mysensors.converter.MySensorsOnOffTypeConverter loaded
2021-04-13 10:27:12.757 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Node 11 found in gateway
2021-04-13 10:27:12.757 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Child 6 found in node 11
2021-04-13 10:27:12.757 [DEBUG] [rsAbstractConnection$MySensorsWriter] - Sending to MySensors: 11;6;1;1;2;0
2021-04-13 10:27:12.757 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Sending MQTT Message: Topic: mygateway1-in, Message: 11;6;1;1;2;0
2021-04-13 10:27:12.858 [DEBUG] [rsAbstractConnection$MySensorsWriter] - Sending to MySensors: 11;6;1;1;2;0
2021-04-13 10:27:12.858 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Sending MQTT Message: Topic: mygateway1-in, Message: 11;6;1;1;2;0
2021-04-13 10:27:12.959 [DEBUG] [rsAbstractConnection$MySensorsWriter] - Sending to MySensors: 11;6;1;1;2;0
2021-04-13 10:27:12.960 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Sending MQTT Message: Topic: mygateway1-in, Message: 11;6;1;1;2;0
2021-04-13 10:27:13.461 [DEBUG] [rsAbstractConnection$MySensorsWriter] - Sending to MySensors: 11;6;1;1;2;0
2021-04-13 10:27:13.462 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Sending MQTT Message: Topic: mygateway1-in, Message: 11;6;1;1;2;0
2021-04-13 10:27:14.464 [DEBUG] [rsAbstractConnection$MySensorsWriter] - Sending to MySensors: 11;6;1;1;2;0
2021-04-13 10:27:14.464 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Sending MQTT Message: Topic: mygateway1-in, Message: 11;6;1;1;2;0
2021-04-13 10:27:15.695 [INFO ] [org.openhab.core.model.script.Info  ] - Nappali Heating Demand : 0
2021-04-13 10:27:15.697 [INFO ] [org.openhab.core.model.script.Info  ] - Gyerekszoba Heating Demand set to: 0
2021-04-13 10:27:15.699 [INFO ] [org.openhab.core.model.script.Info  ] - Haloszoba Heating Demand set to: 0
2021-04-13 10:27:15.703 [DEBUG] [ensors.handler.MySensorsThingHandler] - Adapter: class org.openhab.binding.mysensors.converter.MySensorsOnOffTypeConverter loaded
2021-04-13 10:27:15.703 [DEBUG] [ensors.handler.MySensorsThingHandler] - Adapter: class org.openhab.binding.mysensors.converter.MySensorsPercentTypeConverter loaded
2021-04-13 10:27:15.704 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Node 9 found in gateway
2021-04-13 10:27:15.704 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Node 11 found in gateway
2021-04-13 10:27:15.704 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Child 6 found in node 9
2021-04-13 10:27:15.705 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Child 5 found in node 11
2021-04-13 10:27:15.866 [DEBUG] [rsAbstractConnection$MySensorsWriter] - Sending to MySensors: 9;6;1;1;3;0
2021-04-13 10:27:15.867 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Sending MQTT Message: Topic: mygateway1-in, Message: 9;6;1;1;3;0
2021-04-13 10:27:15.968 [DEBUG] [rsAbstractConnection$MySensorsWriter] - Sending to MySensors: 11;5;1;1;2;0
2021-04-13 10:27:15.969 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Sending MQTT Message: Topic: mygateway1-in, Message: 11;5;1;1;2;0
2021-04-13 10:27:16.170 [DEBUG] [rsAbstractConnection$MySensorsWriter] - Sending to MySensors: 9;6;1;1;3;0
2021-04-13 10:27:16.171 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Sending MQTT Message: Topic: mygateway1-in, Message: 9;6;1;1;3;0
2021-04-13 10:27:16.274 [DEBUG] [rsAbstractConnection$MySensorsWriter] - Sending to MySensors: 11;5;1;1;2;0
2021-04-13 10:27:16.274 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Sending MQTT Message: Topic: mygateway1-in, Message: 11;5;1;1;2;0
2021-04-13 10:27:16.475 [DEBUG] [rsAbstractConnection$MySensorsWriter] - Sending to MySensors: 9;6;1;1;3;0
2021-04-13 10:27:16.476 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Sending MQTT Message: Topic: mygateway1-in, Message: 9;6;1;1;3;0
2021-04-13 10:27:16.576 [DEBUG] [rsAbstractConnection$MySensorsWriter] - Sending to MySensors: 11;5;1;1;2;0
2021-04-13 10:27:16.577 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Sending MQTT Message: Topic: mygateway1-in, Message: 11;5;1;1;2;0
2021-04-13 10:27:16.678 [WARN ] [rsAbstractConnection$MySensorsWriter] - NO ACK for message: 11;6;1;1;2;0

2021-04-13 10:27:16.679 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Node 11 found in gateway
2021-04-13 10:27:16.680 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Child 6 found in node 11
2021-04-13 10:27:16.680 [DEBUG] [rs.internal.gateway.MySensorsGateway] - Variable MySensorsVariableVStatus found, it will be reverted to last know state
2021-04-13 10:27:16.681 [DEBUG] [ensors.handler.MySensorsThingHandler] - Updating channel: status(V_STATUS) value to: OFF
2021-04-13 10:27:16.683 [WARN ] [ensors.handler.MySensorsThingHandler] - Setting last update for node/child 11/6 BACK (due to revert) to 2021-04-13T10:27:02.000+0200
2021-04-13 10:27:17.085 [DEBUG] [rsAbstractConnection$MySensorsWriter] - Sending to MySensors: 9;6;1;1;3;0
2021-04-13 10:27:17.086 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Sending MQTT Message: Topic: mygateway1-in, Message: 9;6;1;1;3;0
2021-04-13 10:27:17.187 [DEBUG] [rsAbstractConnection$MySensorsWriter] - Sending to MySensors: 11;5;1;1;2;0
2021-04-13 10:27:17.188 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Sending MQTT Message: Topic: mygateway1-in, Message: 11;5;1;1;2;0
2021-04-13 10:27:18.090 [DEBUG] [rsAbstractConnection$MySensorsWriter] - Sending to MySensors: 9;6;1;1;3;0
2021-04-13 10:27:18.091 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Sending MQTT Message: Topic: mygateway1-in, Message: 9;6;1;1;3;0
2021-04-13 10:27:18.191 [DEBUG] [rsAbstractConnection$MySensorsWriter] - Sending to MySensors: 11;5;1;1;2;0
2021-04-13 10:27:18.192 [DEBUG] [rotocol.mqtt.MySensorsMqttConnection] - Sending MQTT Message: Topic: mygateway1-in, Message: 11;5;1;1;2;0
2021-04-13 10:27:20.095 [WARN ] [rsAbstractConnection$MySensorsWriter] - NO ACK for message: 9;6;1;1;3;0

@tekka Thank you again It works! I made a custom board with STM32L073RZ and tested it with MySensor over my RS485 network. As a first step I made only a simple sensor with one digital input now I start to write a sophistacated raditaor valve controller with MySenesors library

@tekka Thank you very much! I was able to build a simple sensor I will test it soon and report back.

Hello,
Is there any plans for porting this library to STM32L0 devices?
As I see, the lib uses the STM32DUINO lib as HAL which only supports the STM32F1 chip, but there is the Arduino_Core_STM32 which supports many more devices ( and supported by ST itself as I know). Maybe the developers consider to change the hal to Arduino_Core_STM32 for wider HW support.

Thanks, Marcell