DIYer RazorG illustrates how to make a cheap metal detector using an old AM radio, tape, and a calculator. Tune your AM radio with the volume on maximum onto the high end of the frequency but not ...
A new Instructables page has been created to make an eco-friendly DIY metal detector using an Arduino Mega just been combined with a 3.2 inch TFT LCD touchscreen to provide a fantastic readout, making ...
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