Is there a way to set an Arduino pin as being both an input, and an output?
I was looking at tristates, I'm not sure if that is related, or if there is some other method.
Perhaps I can try switching states rapidly. on one pin. I'm just not familiar with how to do it, and I don't see anything about it on the Arduino site.
This is a function of other microcontrollers, such as PICs, but I'm not sure about AVRs and Arduino types.