Having some free time, and trying to make something useful out of it, I recently experiment with an Arduino and a stepper motor. I was surprised how easy it is to connect, program and use. Until you short out something, but this will be explain later so it doesn’t happen to you!
After seeing this video, I decided to write a quick post to explain the simple physic involved. Everyone knows that two objects drop at the same time will reach the ground together, no matter their respective weight, but is it always true? And… why ?!