I have my library that uses
Serial2 to establish various logging scenarios. Library user would define the config at class constructor, using simple byte constants like 0, 1 and 2.
Serial2 are not available in all board types. So when I compile my code (that compiles fine on Mega) on Uno, I get error
'Serial1' was not declared in this scope.
So I figure I need to adjust my code with preprocessor directive like
#if defined, in order to include some code only if Serial1 is defined. But it wouldn't work, because Serial1 is defined later, at compile-time. So what is the accepted way to do this?