Raspberry Pi LED Light Schroeder Piano – Twinkle Little Star
Keys? Where we’re going you don’t need keys!
This project, created by either Yolanda or Ken Fisher (or both!), uses an array of LEDs and photoresistors to form a MIDI sequencer. Twelve LEDs replace piano keys, and another three change octaves and access the menu.
Each LED is paired with a photoresistor, which detects the emitted light to form a closed circuit. Interrupting the light beam — in this case with a finger — breaks the circuit, telling the Python program to perform an action.
A complete how-to for the build, including some rather fancy and informative schematics, is available at Instructables, where 2fishy received a bronze medal for their project. Congratulations!
Lastly, if you’d like to see more piano-themed Raspberry Pi projects, take a look at our Big Minecraft Piano, these brilliant piano stairs, this laser-guided piano teacher, and our video below about the splendid Street Fighter duelling pianos we witnessed at Maker Faire.
Two pianos wired up as Playstation 2 controllers allow users to battle…musically! We caught up with makers Eric Redon and Cyril Chapellier of foobarflies a…