I am trying to set up a link between an AVR microcontroller and a PC. I need the PC to send signals to set the input pins high/low, and also so the microcontroller can send the values of its output pins back to the PC for analysis.
Initially I would like to do this using cables to simplify things, but later on if it is possible, I am keen to use a wireless link for the two-way communication. Any suggestions for what products are available for what I am trying to do, or how I can make one myself?
Thanks very much!