PicoDetector a PIC based simple and cheap metal detector schematic

PicoDetector : a PIC-based simple and cheap metal detector

A short video clip is sometimes better than a long explanation : The idea of this circuit is to hack PIC oscillator circuit, by replacing the crystal by a coil : the frequency of the oscillator then depends on presence of metal near the coil, just like in a classic metal detector. To detect changes of main […]

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