Speaking of IrDA transceiver modules, Vishay Telefunken makes a pretty nice little package that includes everything you need. It is surface mount and a little less rugged that some of the "tin box" Ir receivers that you can find, but it has everything built right in. They aren't too expensive, but can be a little hard to find. I think Newark carries them. Mike Hord _________________________________________________________________ Tired of spam? Get advanced junk mail protection with MSN 8. http://join.msn.com/?page=features/junkmail -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads