Hey Timo,
I was testing the whole stuff yesterday in the boat. I can't see anything on the MFD at all?
Strange is that I can see all traffic coming from the MFD through the NMEAReader on the teensy.
Do you any hint what could cause that the display does not see the devices at all?
All traffic forwarding is enabled in the config, I tested with enabled serial output and without and forward(false) is commented out.
Regards..