Hello,
I have a little arduino background and now I'm trying to migrate an experiment done with that micro controller to a computer. It consists in setting several IO pins to input and one to output, then i would sweep all of them looking for which pin is received the signal so i could register wich pair of pins are short circuited and loop back indefinitely. My questions are how to find material explaining how expand the IO capabilities of the the ports (if it is even possible) and resource on how to program the same logic. The thing is that I'm moslty able to find how to output data not input, guess I'm using the wrong keywords.
I'm thinking using processing because i'm a little more proficient with arduino programming language but i'm open to any kind of suggestions.
Thanksin advance!