I finally received a M2 and adopted M2Ret in such way that it logs as usual, but when I press the user button, I try to write a message to GMLan.
It looks like it is stored in buffer, but never sent. I can see a lot of traffic in serial monitor at the CAN bus though
Maybe anybody has an example of a simple “sendFrame” ?
Or is there something I do have to do to stop RX and start TX in basic M2Ret code?