Mithru Vigneshwara

The Screaming Sun is a noise/music-making analog circuit that gets power and signal from light – no batteries, no code.

http://blog.mithru.com/energy-final-solar-powered-musical-instrument/

Description

The Screaming Sun is the result of a personal exploration into analog circuits, solar power, and music/noise generation. It's a musical/noise instrument that is electronic but has no batteries. It uses light to be powered. In addition, it also uses light to adjust the pitch of sound produced. The light that affects the pitch is literally the light of a mobile device's screen that can be manipulated by the composer using it.

Classes

Energy