>So, I probably will use one with the F628, to get true RS232 levels. I like the F628, but you still need the MAX232 interface chip in order to get RS232 voltages. Jay -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads