Hi friends I make chance pi metal detecctor I programmed 1.2.0and 1.2.1versions but I have a beeeeeeeeeeeeeeeeb voice of speaker with out content the coil to the board and the mosfet is always on and I programmed 8.4version too and we don't have the voice but the the mosfet is always on and when we connecting the coil to the board the mosfet becoming very hot and if we cut and connect the coil to the chance board swichin with hand fast we can see the chance senseing .
If body Know how to solve it's problem please help me and say it's problem and send the story of the problems to mu Gmail address :masoudkolasangiyani7@gmail.com
Before all things thank you so much for your attention and your beautifull sees and your Times that put for me friends
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