with my led matrix set up...and I've ordered some of the transistors from your schematic, when I get it hooked up, I'll report back.... my program strobes a row at a time, so the loop has eight entries, or instructions, so far it doesn't yet take input, it only does one thing over and over...I plan on it handling a serial input maybe from an IR setup....still working on that... -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads