Thanks for the response! > If you want the chopping to be pasive to your PIC, why don't you > use two PICs? I am thinking about it... I just took apart one those dimming halogen lamps and noticed that they do an elegant chopping thing with a RLC circuit somehow (I don't understand the circuit). I figured if there were an easy way to simulate the variable resistor in the circuit it would be nice. Any clues there? -aaron ------------------------------------------------------------------------------- - Aaron J. Miller Email: millera@stanford.edu - Physics Graduate Student Web : http://www.stanford.edu/~millera - Stanford University Phone: (415) 372-5575 (until 4/12/97) -------------------------------------------------------------------------------