If you are going to use an Arduino Mega, you have to edit everything on this sketch that says "Serial" and replace it with "Serial1" (or whatever number you are using ...

What started out as a project to modify Dave Bodnar's original Nextion Throttle while trying to learn "C" and a bit of "C++" has turned out to be a Controller for both DCC++ and DCC-EX Command ...

We propose to make a little calculator realising the four basic arithmetical operations using one Arduino and a Nextion touch display. This calculator uses the Reverse Polish Notation, which may ...