If it is a seperate class, you will need to add the line:
#include "Arduino.h"
In order to get the type definitions. This is not needed in the sketch because the sketch is I believe an extension of main.cpp which already includes Arduino.h
If it is a seperate class, you will need to add the line:
#include "Arduino.h"
In order to get the type definitions. This is not needed in the sketch because the sketch is I believe an extension of main.cpp which already includes Arduino.h