Extra digital pins on Arduino Nano?

Forum 2005-2010 (read only) General Frequently-Asked Questions
1

Hi All,

I have a Nano, and it has two more analog pins than the Diecimila. I understand that the analog pins can be used as digital pins, but the extra two on the Nano don't seems to work this way (analog pins 6 & 7 != digital pins 20 & 21). Is this a physical limitation with the chip, or just that it isn't supported in software? (yet?)

2

A glance at the data sheet indicates those two are ADC inputs only - they have no other function.

-j

3

Thank you. I see that on the Nano datasheet, but I just didn't know what it meant before now. I appreciate your help.