Super!!!! I got it working and my code that I posted earlier was perfect.
I used the wrong tx pin (which happens after a long day at and only had 30 min to install and test it)
Thanks for all the help guys, and I have now learned about rs232, rs442 and rs485 which is fantastic. I also now have a setup without wires which is so great. ESP32 run directly off the raymarine power using the UBEC it’s so elegant and well hidden.
Maybe one last question. Has anyone had luck with sending wind data to the raymarine? I tried to send MWV from OpenCPN but I can see in the NMEA debug window that it is not sending it out...
Anyways this was enough victory for now, I’m so happy that it’s technically working and it will be fun to see how it performs.
Br, Peter
I used the wrong tx pin (which happens after a long day at and only had 30 min to install and test it)
Thanks for all the help guys, and I have now learned about rs232, rs442 and rs485 which is fantastic. I also now have a setup without wires which is so great. ESP32 run directly off the raymarine power using the UBEC it’s so elegant and well hidden.
Maybe one last question. Has anyone had luck with sending wind data to the raymarine? I tried to send MWV from OpenCPN but I can see in the NMEA debug window that it is not sending it out...
Anyways this was enough victory for now, I’m so happy that it’s technically working and it will be fun to see how it performs.
Br, Peter