Well, I did find (part of) my problem - It was a bad solder at GPIO.4 so it was never seeing the zero crossing. Having fixed that, I now can dim the light up and down just like it is supposed to. However, (bet you saw this coming) when it is between full on and full off, it flickers randomly. The dimming works but it flickers until it gets to full on or full off. I am sure that this is a timing issue but can't see where to get at it. I am at 60 Hz, 120V. I am using the code as previously posted.

I know that some of you (Mister_e) feel like you are beating a dead horse with this dimmer project, but if you can help me get through this, I will post my final code, circuit diagrams and parts lists so that anyone can build this and you will never have to deal with it again (hopefully!).

Thanks (Mister_e)!

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