Hey guys-I've got a few older Nintendo and original Playstation controllers with joysticks and I had a pretty cool idea about intercepting the signals sent from them to use for a completely different purpose than originally intended. I've searched the web for awhile and have only been able to find quality info on the Nintendo "Gamecube" controllers. Does anybody here know anything about the information that could be processed, interpreted, and taken advantage of via one of these prehistoric game controllers? Any info you guys could share or point me to would be greatly appreciated!

Thanks!