I don't exactly understand what I need to change in the DMXserial.h file to allow me to specify the Software serial port pins.
don't have space for a Mega
I seem to remember that the Nextion screen does not like using software serial ports, so it makes sense to move the DMX if possible.... here is where I fail.
I have disabled dbSerial. Same issue.Google turns up that this 'Vector 18' issue is a problem that doesn't appear to have been solved
The solution is quite simple. Don't do that.