The Chipophone: An 8-bit synthesizer

Linus Ã…kesson’s Chipophone is a 8-bit synth built into an old electric organ.

All the original tone-generating parts have been disconnected, and the keys, pedals, knobs and switches rerouted to a microcontroller which transforms them into MIDI signals. Those are then parsed by a second microcontroller, which acts as a synthesizer.

The synthesizer is implemented on an ATmega88, an 8-bit microcontroller with 1 kB of RAM and 8.5 kB of ROM. It receives MIDI data at a jumper-configurable baud rate and produces a 12-bit mono line out signal.

The Chipophone

6 thoughts on “The Chipophone: An 8-bit synthesizer

  1. Dude, your project is awesome, but your demonstration KICKS ASS! Using feet and hands to perform old classics in such complete way was HIGHLY impressive. I wish I had that baby chipophone to play a little as well! congratulations!

Comments are closed.

My interests include writing, electronics, RPGs, scifi, hackers & hackerspaces, 3D printing, building sets & toys. @johnbaichtal

View more articles by John Baichtal