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[SOLVED] PIC reset while switch off AC 220V load and Transformerless power supply

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I also tried decoupling on it but still have problem. But try to put bluetooth far from board it seem better because it error sometime
 

You can try series resistors (e.g. 0.5 - 1k) for the data lines connecting moulde and processor.
 

add a resister parallel against 2.2uf
 

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