Metal Detector Project

NECO

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About this app

This arduino project helps you to build easy a Pulse Induction metal detecter "Spirit PI".
This metal detector is wireless it's based on an arduino microcontroller and android app.
On my YouTube chanel you can fine video tutorials that will help you build this metal detector step by step.
the list of all the components that you will need to find on my website:
http://www.neco-desarrollo.es

It's a project that I have just started, I'm going to improve it and add more options and power. Its operation is quite simple, we have a coil of 25 turns and a pulse generator made with a mosfet and arduino microcontroller. when it detects the metal the information is sent by bluetooth module hc-05 to the app "Spirit PI", in the app the calculations are made and if there is metal under the coil a sound and vibration is emitted in the smartphone.
You can ask me any questions you have. I always answer the questions. If an error appears, I will fix it as soon as possible, just communicate it to me.
All the information and more projects you can find on my website I will be updating as the project grows. My web page:
http://www.neco-desarrollo.es
Build your own PI metal detector.
Metal detector DIY project for everyone!!

Ratings and reviews

great app, connects and works really well and is fun to use. only issue i have if I try to use in a remote area without wifi or mobile reception the app will try to connect to the play store and gets stuck so it can't be used. would be great to have a brief description of how each of the settings work.

I have made your project Spirit PI ESP32 version 2.0.0. The part before ESP32 works great (I checked the signal at the output of the operational amplifier which changes when there is metal near the coil. When I turn on the application, I connect and pair successfully with the "ESP32_Spirit_PI-2" Bluetooth device, but when I press the refresh button on the smartphone, the application disappears from the screen (or on older Android the message Spirit pi has stopped appears). Please help

Very Good, plz add to this app instruction manual for trouble shooting. For example how to increase detection length (instruction must be in written format).Hope trouble shooting part will be added 😊