Howdy.. I want to create a "low battery" warning LED, to warn me when the = voltage drops below say 4V (from 4.5 supplied from 3xAA)... I told my = brain to work something out, the best it came up with was putting some = very high resistance resistor feeding the +ve supply to the base of a = transistor, then the collector-emitter current would die (supposedly) so = I could do that inverter thingy :) Then I told my brain to construct an = example, it built what I just described (minus an inversion), all that = arose was an LED slightly dimmer than the "power on" indicator LED. = Anyone wanna help me solve this? :) Oh... and.. please *sob* help me *sniff* with my [PIC]: Flashing LED In = Practise :) Thanks again, Kieren -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.