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Temp. controller with MOC30XX

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Eng.AH

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Hi geniuses people,

I'm facing a problem with, controlling the MOC3021 (non-zero crossing) with the PIC16f876A. In order to control the main triac. the objective is to control the power delvired to the load ( heater).

there should be a sinkro signal from the AC lin 220V. The PIC knows when the sine wave starts.



the problem I' facing is : I CANNOT CONTROLLING THE POWER IN SPIT OF THAT I MADE EVERY THING RIGHT!!


Please guys... help.

the circuit is attached, with the c code.
 

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