I bought a 12″ bicycle πŸ˜€

12inches_kids_bicycle

As I mentioned in a previous post, the energy conversion from kinetic to electric to charge the phone, occurs thanks to a small bicycle wheel put in contact with the big hamster wheel.Β The smaller the bike wheel, the more energy would have been generated, so I opted for a 12” kids bike wheel, to which I connected a dynamo, which was in turn attached to a phone charger.

bicycle_dynamo Bicycle dynamo.

bicycle_usb_charger Dynamo to USB connector.

connection_bike-dynamo-chargerBicycle, dynamo, charger and phone connected.