My first milestone in building a wind turbine was to create a breadboard that would light an LED when the stepper motor spins. The current generated from the stepper motor is alternating current. If connected directly to the LED, the light would turn on, then off, then on then off, because current can only pass through the LED in one direction. In an attempt to get a steady light from the LED, I made the alternating current direct current by using two four diode rectifiers and two capacitors. To avoid destroying the LEDs I also added a voltage regulator. As you can see in the video, when I spin the motor manually, the LED is steadily lit.
We believe that there is a lot of value in simply creating. We plan to make an awesome program to allow kids to build cool projects on their own, with technical support from instructors and TAs.
It is meant to be a beneficial, educational, and above all FUN program for students that want to tinker with engineering!