I am trying to make this unit.
I have built the unit using a micro instead of a nano.
I am sure when I first started I could compile the code and load it into the micro.
Nothing happened, I assumed because I had no wires connected for the tester, I now know the micro uses different pins for SDA and SCL.
Now it is built, when I compile it, even without the micro connected, I get the error
'OCR2A' was not declared in this scope.
If I change the destination to a nano it compiles fine?
The micro is soldered into the board now so I want to try to use it.
Is OCR2A something not in the micro?
Why would I get an error when I try to just compile with 'micro' selected in the Tools/Board section and not when I have 'nano' selected?
The code is too long to fit in this page but is on the page linked above?