Rotellino - Battery Free Contactless Bike Light
Description
Rotellino is a cheap DIY bicycle light, *simple to build and battery free*. Rotellino creates electricity almost frictionless because it uses the variation of the magnetic field generated by the wheel rim (Eddy current) to make a rotor rotate with 6 neodymium magnets and generate the current needed to power 2 LEDs. More information : https://www.instructables.com/id/Rotellino-3-Battery-Free-Contactless-Bike-Light/
Statistics
Likes
94
Downloads
0