PIM-2 PI metal detector

PIM-2 Pulse PCBs

3 Comments

    1. check output of microcontroller sound output pin for signal (osziloskop) pin 13
      if you have signal there check T2 after outout pin, before speaker
      maybe you changed the type by replacemnt part and turn wrong direction

      good luck
      bernte_one geotech1.com

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