Richard
Here is my SerialCommand - looks the same
/*
Class SerialCommand
Author Ethan Pan @ Freenove
Date 2016/8/8
Brief This class is used to save serial command.
Copyright Copyright © Freenove
License Creative Commons Attribution ShareAlike 3.0
Here is my SerialDevice - different
/*
Sketch SerialDevice
Author Zhentao Lin @ Freenove
Date 2020/07/11
Brief This sketch is used to communicate to Processing sketch running
on PC. The Processing sketch will automatically detect and
connect to this board which use the same trans format.
Copyright Copyright © Freenove
License Creative Commons Attribution ShareAlike 3.0
*/
#include “SerialCommand.h”