The project is powered by an Arduino Uno connected to four steppers motors, drivers and a linkage system to keep the ball in motion. Some words about how this PID controlled ball and plate works: ...

By the way, we’ve covered a PID library for Arduino before. While this post talks about temperature, PID control is used for everything from flight control to levitation.

A PID algorithm measures the distance to the ball and raises or lowers a beam to try to get the ball to the center. Servos like this usually operate in radio control vehicles and they are very ...

Francesco Tacchini, a Royal College of Art grad student, and Julinka Ebhardt and Will Yates-Johnson of Design Products have created a very creepy and cool black floating ball project that is ...

Why this hasn't been done before is a mystery to me. This little hack project by Kellbot of NYCResistor takes a rolling ball, an optical mouse, a gutted PS2 controller, and some Arduino hacking ...