Please find enclosed a NodeRed file wich subscribes and shows some data in the Dashboard. 2 ways is used, via a function node or SK subscribe node. With NR installed as a plugin inport the flow. I'm using the sample file NMEA 2000 file as input which I have described here https://pysselilivet.blogspot.com/2020/0...pnsig.html
Enjoy !
Enjoy !