µsini M1D1_36

An Open Source Midi controller with 36 pads in a compact body.

Documentation en français : https://usini.github.io/m1d1_36/index.html

Make music on a PC or with open source sound modules.

• 36 capacitives pads
• 4 Potentiometers
• 10 buttons

Based Sparkfun Pro Micro (atmega32u4) https://www.sparkfun.com/products/12640

Demo

USB Midi

Compatible with any music software
Can also be used as a keyboard / mouse / xbox360 controller...

Examples

LMMS - Open Source Music Software - https://lmms.io/download#windows

PatchBox OS - Raspberry Pi synthetiser - https://blokas.io/modep/

Serial Midi

Add controls / sound generators using open sources modules

Compatibles Modules

• µsini zx [TO BE PUBLISHED] : a AY-3-8910 sound generator (used in zx-spectrum)
  Based on Ian Harvey design (public domain) : https://www.instructables.com/id/Arduino-MIDI-Chiptune-Synthesizer/

• µsini opl2 [WAITING FOR COMPONENTS] : A OPL-2 FM sound generator (used in adlib sound card)
  Based on Maarten Janssen design (MIT licence) : https://hackaday.io/project/18995-opl2-audio-board-for-arduino-raspberry-pi

• µsini M1d1 Out [TO MAKE] : A serial pins to Midi output

• µsini M1d1 WiFi [TO MAKE] : A serial midi to RtpMidi (WiFi Midi)

• µsini M1d1 BLE [TO MAKE] : A serial midi to BLE

Make your own

Fast and easy to solder as this midi controller used only modules.

Send Gerbers to PCB Manufacturer

Buy component

You can either choose to buy components from a chinese clone manufacturer or the original source.

Clone links (sponsored)

Sparkfun links

Solder it

Upload code

Easy to customize code

Easy to use events system

Each times a pad / buttons is pressed or a potentiometers is moved, theses functions are triggered:

• potsEvent()
• buttonsEvent()
• MPREvent()

Developer documentation : LINK

Easy to customize schematics

noob friendly schematics for Kicad.

3D models

• pro_micro.step - Andrew_Witham - https://grabcad.com/library/arduino-pro-micro-1
• stepdown.STEP - Hasanain Shuja - https://grabcad.com/library/ dd0503ma-ultra-mini-dc-3-7v-4-5v-5v-to-3-3v-dc-dc-step-down-converter-buck-module-2
• oled.step - CDMX ELECTRONICA - https://grabcad.com/library/display-oled-ssd1306-de-0-96-1
• mpr121.step - SPARKFUN - https://www.sparkfun.com/products/retired/9695
• logic_level.step - SPARKFUN - https://www.sparkfun.com/products/12009
• 12mmx12mm Without cap.step - Nilton - https://grabcad.com/library/
• 12mm-button-without-cap-with-round-square-cap-1 pot.step - Mirko Ragni - https://grabcad.com/library/47k-potentiometer-1

Open source as its core

Make your own midi controller and sell it.

Documentations / Codes and components, everything is licenced so you can make your own controller and sell it.

Open source modules

Except for the OLED screen / 5v to 3.3v voltage regulator, all modules are licenced Creative Commons Share-alike 3.0 by Sparkfun.

Eagles Files

• Pro Micro - http://cdn.sparkfun.com/datasheets/Dev/Arduino/Boards/SparkFun_Pro_Micro_v13a.zip

• MPR121 - http://cdn.sparkfun.com/datasheets/BreakoutBoards/MPR121-Breakout-v13.zip

• Logic Level Converter - http://cdn.sparkfun.com/datasheets/BreakoutBoards/Logic_Level_Bidirectional.zip

Open Source code