Scott Dattalo wrote: > > First, each LED is back to back with the other, such as: > > > > ->|- and > > -|<- meaning each anode is hooked to the cathode of the other > > in each two LED group. snip--- > You know, I've been doing a lot of programming lately - too much in fact. > But the last time I played with leds you couldn't get current to flow > through a 'back-to-back' configuration. Maybe I should just stick to > programming. :). > > Scott He may have used the wrong terminology 'back to back' but what Jeff said was anode of one to cathode of the other in each 2 group, meaning across each other, just like a dual or tri-color LED configuration. Don McKenzie mailto:don@dontronics.com http://www.dontronics.com World's Largest Range of Atmel/AVR and PICmicro Hardware and Software. Free Basic Compiler and Programmer http://www.dontronics.com/runavr.html