FYI, if your board features a Atmel 328p in a TQFP package, there are two additional analog pins (A6 and A7) that are analog only. I doubt you'd ever encounter these on a official board though.
FYI, if your board features a Atmel 328p in a TQFP package, there are two additional analog pins (A6 and A7) that are analog only. I doubt you'd ever encounter these on a official board though.