Hi-- Does anyone have a circuit and some code for driving a 60 Hz, mains-line synced PWM? I need to create an AC dimmer for 120V incandescent lights that will operate under PIC control. I know it's been done, but I have yet to see a lucid explanation of how the routine works... I've seen the appnote on the PIC12 dimmer- the one presented at the seminar I attended- and it is only applicable to dimming a DC bulb using PWM- no 60Hz waveform synchronization needed-- what I need to do is a very different animal. Can anyone help? Thanks-- I thought I'd see if anyone can help so I don't spend development time re-inventing the wheel! Alan McFarland's Applied Magic Custom Electronics for the Motion Picture Industry Lighting and Electronics for Models, Miniatures, Props & Sets http://www.appliedmagic.com