Arduino Metal Detector Schematic. Now when we take this project near the metal it senses the metal near it due to the electromagnetic waves transmitted from the coil. Led 1 5mm any color led.
Buz 1 buzzer. Due to this short spikes will be generated by the coil in every transition. Electronic circuit arduino and a copper coil.
The pulse length of the generated spikes is proportional to the inductance of the coil.
The tank circuit is a general term representing an inductor and a capacitor. The sensitivity is not enough for treasure hunting but it can be ma. Working of this arduino metal detector is bit tricky. Components used in metal detector circuit using arduino.