How to detect metals with Arduino and 1Sheeld - Magnetometer Shield Tutorial
1Sheeld is a mobile app and a board that turns your smartphone into an open platform for Arduino.
In this case you can use your smartphone magnetometer sensor for metal detection, so it can be used to build a minesweeper vehicle with Arduino, 1Sheeld and your smartphone.
The idea basically is to make your smart phone act as an input/output to the Arduino, so you can use the touch screen of your smartphone as an LCD, or make the phone an Arduino controller starting with simple push buttons, keypad, or keyboard or voice recognition!
Or use it as an output from Arduino like logging data on it, or converting text to speech or use it as a music player.
So basically whatever your phone does, you can link it to Arduino, think about Facebook, Twitter, Skype (Yes you can stream a video call!), touch screen, music player, GPS sensor, Gyroscope sensor and much more!
You can know more about 1Sheeld from www.1sheeld.com.
