That would allow you to toggle the direction the car moved depending on which way you flipped the switch.) (Or you could make the car even more awesome by using a DPDT (double pole double throw) switch instead of the simple ON/OFF switch that we used. To get the car to move the opposite direction, you would just need to switch the leads on the motor. Note that the way I hooked up the circuit, the fan pulled the car instead of pushed it. You can watch a video of our car in action below. (Sign up for my newsletter to stay up to date.) Next I want to try to make something powered by solar panels from the 99 cent store instead of batteries. Fortunately, it’s not very expensive, since we mostly used free, recycled parts like our deli meat container and bottle caps. This little car makes a great first electronics project for kids since they get to put together a simple circuit. Most important, my kids thought it was cool. This little propeller car kind of feels like cheating, since the spinning of the motor is not directly connected to the spinning wheels, but it still works. I’ve been wanting to make something more car or rover-like with wheels for awhile, but I wasn’t exactly sure how to connect the motor to the wheels. My kids love when we make little homemade “ robots” that move and wiggle around.
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