Custom Isomorphic MIDI Keyboard

US Fantastic DIY Breath & Velocity controlller      27/11/25

Xavier Dumont has recently shared his excellent Custom Isomorphic Keyboard - t's a 48-key device running on an ESP32, with potential for Bluetooth and Wifi functionality. It really looks and sounds the part! In the video he goes through a technical breakdown, dismantling the unit to reveal the keys and caps, the key switch PCB and the brain PCB. Here's a demo:


Great stuff, here are the time stamps: 

0:00 Intro and features

1:23 Removing screws and opening

3:26 A word about keys and caps

4:23 Under the keycaps

5:14 Keyswitch PCB

12:19 Brain PCB

14:44 Breakout PCB
 

 

More from Xavier Dumont

About the author [midierror]: midierror is co-founder of Potato Audio, he makes nifty Max For Live devices, award-winning Sample Packs and hosts the 'midierror meets...' interview series speaking with all kinds of people working in sound & music. 


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