source= http://www.piclist.com/postbot.asp?id=piclist\2002\01\13\184231a My approach to the RS232 level conversion thing is to design with just the PIC and a current limiting resistor and then add one of these if it turns out I need it later. http://www.piclist.com/techref/io/serial/RCL1.htm --- James Newton: PICList.com webmaster, former Admin #3 mailto:jamesnewton@piclist.com 1-619-652-0593 phone http://www.piclist.com/member/JMN-EFP-786 PIC/PICList FAQ: http://www.piclist.com -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu