Build MIDI Controller with 400 Keys (Arduino and PC Keyboards)

How to build a 400 key MIDI controller with computer keyboards and an Arduino. Thought it would be fun to work with something a little bigger after the Bluetooth Minion Keyboard adapter toy we made last week


  • PS2 jacks:
  • Arduino UNO:
  • MIDI port:
  • Resistor pack:
  • Perfboard:
  • Keyboards:

My Gear


ArduinoMidiPS2 code can be downloaded here

Full schematic (REVISED – thank you Jakob Chan)

Liked the Tetris remix at the end?
Check out IncredFX’s video game remixes for more!

Other music credits:
The Passion HiFi –

Author: kojote

Nerd, Dad, Maker

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