> I've switched 12 volts, 1 amp with a pic (and a transistor placed >10mm from pic.) using standard ATX power-source. The other > IOs-didn't notice and my software rs232 worked like a charm. > > Using a scope to check is on the other hand a good idea. > > KreAture Didn't mean to sound too A-R about it but as far as possible I try to bear in mind Kelly Kohls' signature "There's never enough time to do it right, but plenty of time to do it over" So true so often -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.