4chord MIDI Piano

by sgreg.

2 layer board of 2.95x3.34 inches (74.90x84.79 mm).
Shared on August 19th, 2017 19:30.

The 4chord USB MIDI Keyboard in Piano shape. Play all them major hit pop songs with a simple press of four buttons.

Built around an ATmega328P with a Nokia 5110 LCD and the V-USB library, 4chord MIDI acts like any other, regular MIDI instrument.

PCB was designed with KiCad and released under the CERN Open Hardware Licence version 1.2.

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