Hi Bob, I used Tony Kubek's design from the piclist. It is located here, http://www.piclist.com/techref/microchip/picboard.htm The code is nicely commented, and easy to modify. The hardware interface also worked well. I used a 16 key keypad for my app. I would substitute a 16F628 or (16F648A ?) for the 16F84. I think I have a stripped down version of Tony's code that just has the PC <> PIC, interface part of the code. Let me know if you want a copy of it. Good Luck, Kevin >Has anyone done anything with trying to communicate with a computer by >means of the keyboard port. I wanted to make a custom keyboard that >was easy to program for different applications. I have some >disabilities and there are many ways this could help. > >Bob -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads