> Steve Landry wrote: > I have a client that needs an AT style keyboard interface for a custom > input panel that he wants to plug into a AT motherboard. It seems > that all the off-the-shelf single chip controllers like the 80C42's, > 80C49's and 83C51KB's have all dried up. I've torn apart every > keyboard here in the office, but no one is interested is selling me > the chips. Is this a wheel that needs to be reinvented? Has anyone > done this before using a PIC? I need to scan 53 keys? I noticed people steered you to code for this project. when you need a PCB to help you prototype the design, have a look at: http://www.dontronics.com/dt102.html This has an 84 to at keyboard in din5 and ps2 standard, plus a lot of other gear to boot. Don McKenzie mailto:don@dontronics.com http://www.dontronics.com World's Largest Range of Atmel/AVR and PICmicro Hardware and Software. Free Basic Compiler and Programmer http://www.dontronics.com/runavr.html