Does anyone know the best way to find pin-numbers with cloned boards? I have a Pololu A-Star 32U Mini RV and so far I have figured out the MMJoy labelling for the analogue inputs. However I am trying to set up a 4x4 push button matrix and it's a little harder to do it by trial and error. Is there an easy way of testing pins without saving and restarting the device?

Here's the diagram for the board, I have had some success using the labelling of the Arduino mini as reference but not for the matrix.



Currently my matrix is hooked up as follows:

Rows are on 0,1,2,3 and columns are pins 4,5,6,7.

Any help would be greatly appreciated, I'll be trawling the thread here and looking about for more info in the mean time.

Cheers,

Cory.

Edit: Decided not to be lazy and look at the schematics myself, will dig them out now.

Edit 2: Didn't need the ATmega32U4 schematics as the pin-out schematics are accurate, I just haven't had my breakfast.