(2023-01-25, 02:10 PM)Sailoog Wrote: I assume you want to use the /dev/ttyOP_pilotout device to send data. You need to add the event nmea0183out in the field "Output events" of your signal k connection for this device.

when you set a serial connection in signal k, it works only as input by default, if you want it to work as output too, you need to tell the Signal k server what events you want to send. Events are like "labels", you can label any data entry (event) and then use that label to identify the data and define outputs. Events explained: https://openplotter.readthedocs.io/en/3.x.x/signalk/multiplexing.html