Keith wrote: >I have rb3 connected directly to rx. You need a MAX232 or similar chip to interface the PIC to the RS232 line as the levels required are quite different. The MAX232 has 2x RS232 transmitters and receivers. Regards... -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads