Bicycle-powered phone charger

Last night we finished a prototype for charging mobile phones. The LED display shows the produced power, some animations and statistics. Tomorrow the prototype will be on the Radgipfel 2015 - in Klagenfurt, next week in France. We have implemented the project with IG Fahrrad Vienna. 

http://www.klimaaktiv.at/…/rad…/radgipfel/radgipfel2015.html