Interesting. That would save the trouble of figuring out how to decode a bitstream. How would I time the pulse though? Is this where the CCP module comes in? From: "Robert Rolf" Sent: Wednesday, September 27, 2006 3:03 PM > K.I.S.S. Keep it simple stupid. > > Simplest is to use variable pulse width for each transmitter. > Measure the received pulse width and categorize. (using any one of a dozen > different IR receiver chips). -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist