FH-1 MIDI controller

From NURDspace
FH-1 MIDI controller
FH-1 MIDI controller.jpg
Participants Dennis
Skills Arduino
Status In progress
Niche Music
Purpose Instrument
Tool No
Tool category

FH-1 MIDI controller

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Trying to build an Arduino MIDI controller for controlling the Expert Sleepers FH-1 Eurorack module.


  • Funduino Arduino Uno R3 clone
  • Joystick Shield (marked as V1.A)
  • Breakout board with SSD1306 I2C OLED screen (address 0x3C)
  • Toggle switch


dualMocoLUFA 16U2 firmware

The USB to serial chip on this Funduino board is actually a ATmega16U2 microcontroller. It is possible to reprogram this to act as a USB MIDI -> serial bridge. I used dualMocoLUFA and soldered on a toggle switch to switch between MIDI mode and normal mode (to upload new sketches).

Flashing dualMocoLUFA to the ATmega16U2

  • Install prerequisites

sudo apt install dfu-programmer dfu-util

  • Download the firmware

wget https://raw.githubusercontent.com/kuwatay/mocolufa/master/HEX/dualMoco.hex

sudo dfu-programmer atmega16u2 erase

  • Flash the dualMocoLUFA firmware

sudo dfu-programmer atmega16u2 flash --debug 1 dualMoco.hex

Arduino sketch

In progress...