MySensors Serial Gateway not coming online in OH2

Add-ons Bindings
6

@Dbagioni

  1. when you use systemctl start openhab.service then i think your start.sh should be /etc/default/openhab2 this is where you should add EXTRA_JAVA_OPTS="-Dgnu.io.rxtx.SerialPorts=/dev/ttyUSB0:/dev/ttyAMA0:/dev/ttyACM0"

As your post is not right formatted i im not sure but i think you have it there. Have a look here for more information about formatting posts.

Maybe just check in

  1. Did you install the binding? I am not sure but the name serial1 suggests that it is a OpenHAB1 binding. Maybe you need to add legacy binding support. But i think not as the documentation does not list it as legacy.

  2. List the groups of your openhab, maybe it is not in dialout. I know you said it should be. I just try to find the problem.

sudo -u openhab groups
  1. Try to use the serial connection as openhab
sudo -u openhab <SerialTerminalConnection>
  1. Maybe try to define a Item
String UnoItem { serial="/dev/ttyACM0@<baudrate>" }

And maybe you can find something in teh logs?