In all of my designs I have a higher voltage power source (9-24 volts) a 5V regulator (78L05 or a zener, typically) and the PIC drives 24 volta loads through a small open collector transistor (sized appropriately for the load) --Larence > My second post regarding operating higher-voltage loads is still begging for > an answer too ;) > > Thanks -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads