Andre Abelian wrote : > Yes I have spare I/O to drive FET but I still do > not imagine when pic is off there is no power to it > how to turn back on digitally. Any idea ? What ? You want your *code* in the PIC to turn itself on ? When powered off ? And not in "sleep" mode ? And without the "user" doing anything at all ? I must be missing something here... Jan-Erik. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist