Instructables user [samsmith17] wanted to cover his bike with EL wire for this year’s Burning Man, but he didn’t want to mess with the hassle of using batteries as a power source. Instead, he decided that his EL wire bike would be powered solely by the rider. In the interest of keeping things green, the entire build is made up of re-purposed parts, aside from the EL wire itself.
If you are not familiar, EL wire only lights up when AC current is supplied, so he decided to use a stepper motor to generate the current required. The stepper motor was mounted against his bike’s wheel, and wired backwards through the AC transformer portion of an old cell phone charger in order to step up to the required voltage. A rheostat was also added to the circuit in order to help prevent an over voltage condition, which could potentially damage or destroy the EL wire.
The end result is pretty cool to watch, and costs very little to boot. It would be nice to see someone expand on his project, adding additional wire colors and perhaps a few capacitors to keep the wire from going dark immediately after the wheels stop turning.
Continue reading to see a quick video of the completed project.