> Aah yes, of course! I see it now. I'd use a 16F877 to drive a relay to apply > power to an LM555 in astable mode to blink the LED ... ;) > Debbie You should add a transistor between the PIC and the relay!!! :) Juan Cubillo "I=1C=E0t=07=1C=E0t=07=E0=0E --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist