Do you have any 100nF caps on the output of the 7805 to stop oscillation? Do you have any resistors between the LEDS and supply? colin -- cdb, bodgy1@optusnet.com.au on 23/01/2003 I have always been a few Dendrites short of an Axon and believe me it shows. Light travels faster than sound. That's why some people appear bright until they speak! -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads