Is there any reason I cant re use RX and TX as momentary switch inputs since I'm out of pins? I don't specifically ever use serial transfer in my sketch. Also, If I did use serial, and TX was pulled to ground accidentally, would that cause any damage? I assume the hardware ports are protected. Of…

reuse serial?

Grumpy_Mike April 24, 2012, 9:56pm 2

I assume the hardware ports are protected.

No.