I built this LED light that I want to program. I call it the Atomic Atom.
I have a Arduino Mega, a mic, an IR sensor, and a bit of code running it together. The LED are ws2813s. The rings are made out of hula hoop material with PVC joints. The entire things folds flat and is mainly rigged on a bike trailer when in use.
I'm hoping to make it sound reactive and use each of the three rings both separately and in concert with each other.