Electronic Batteryless Dice

The muscle powered Dice is based on Faraday’s law, consisting of a tube with cylindrical magnets. The tube is wound with a coil of magnet wire. As the tube is shaken, the magnets traverse the length of the tube back and forth, thus changing the magnetic flux through the coil and the coil therefore produces an AC voltage which is used to drive the electronic dice. Pretty simple now that you know how it’s done 🙂

Electronic Batteryless Dice: [Link]