On Mon, 15 Jul 2002 19:45:36 EDT, Sid Weaver wrote: >I usually don't ask for help but after two days of fruitless effort I = have no >choice. > >I'm try to serout from a 16F876 to the screen. PortB.1 is defined as = "so", >and is tied to pion 2 of my DB9 connector. Pin 5 of the DB9 goes to = system >ground. > You need a level shift between the PIC's 0 to +5 volt logic levels and the RS-232 levels at the DB9 connector. This is commonly done with a Maxim MAX-232 chip. Regards, Bob -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu