Mechanical Tongue Drum

Mechanical Tongue Drum is a art piece that I created in 2022.

The piece is controlled by a BBC Micro-bit which controls both a stepper motor controller, as well as a solid state relay that switches the power to the solenoid.

It is programmed to play random notes without doing more than a 180 degree turn from its start point.

With no way of keeping track of its location on the stepper motor and with a random step factor added, it will slowly de-tune over time.

You can watch a demonstration on YouTube.