"Lowrider" Office Chair Enhancement
This little guy attaches to an office chair and plays the horn part from "Lowrider" when the chair is lowered all the way down.
There are a few shared computers where I work. A coworker of mine likes to lower each chair all the way down before he sits. It's more comfortable for him, but it's a surprise when I go to sit down and the chair is lower than I expected. The words to "Lowrider" always pop into my head when that happens, and I thought it fitting that the chair itself become musical.
The circuit contains an Atmel ATTiny 85v running the Arduino core and a simple sketch using the Tone() library to play the notes. The switch supplies power to the microcontroller, which plays the tune through the piezo element and then goes into "power-down" mode to save the 2032 cell's power.