As long as you keep the receive enable pin active while transmitting, you should receive what you send. If you have tied pins 2 and 3 together, this will disable receive while transmitting. (ie. When tx -> pin 2 and 3 = high, when rx -> pin2 = high, pin 3 = low) Regards David Huisman -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]: PIC only [EE]: engineering [OT]: off topic [AD]: advertisements