I wanted to built myself a “most useless machine” for a while and after experimenting with an old cd-player and a switch I figured out the circuit and made a proof of concept version.

So yesterday I bought a cheap servo at my beloved Okaphone and built it in a couple of hours. Nice project with a combination of building, soldering and figuring stuff out. First time I used hot-melt glue in a project and it ain't pretty but it works wonders!

Little video of the result is on Vimeo.