How to use your smartphone into metal detector.
The hardware of smartphone have a magnetic sensor and with any applications we can turn our phone into a “NOT professional” metal detector.


  1. ali esmaeili

    November 15, 2018 at 11:36 am

    What's the name of the app? Thank you


  2. Paul Evans

    November 15, 2018 at 11:36 am

    Where do you get the coil from ? There's no link in the description


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