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Table of Contents

PS202 - MIDI-Duino

An USB-Midi and Midi-In and Thru/Out Board. Based on the Arduino Pro Micro.



Paper-PCB


ps202_-_midi-duino_05-promicro.ai.zip

Parts

  • Resistors:
  • 3x 220 Ohm
  • 3x 2 kOhm
  • 1x 1 kOhm
  • 1x 3.3 kOhm
  • Capacitor:
  • 3x keramic Cap 100 nF
  • 2x electrolytic capacitor 100 µF
  • Semiconductors:
  • 1x Arduino Pro Micro
  • 1x 7805
  • 1x inverter 74 LS 04N
  • 1x optokoppler 6N138
  • Diodes:
  • 3x LED Low Current 2mA
  • 1x 1N4148
  • 1x 1N4007
  • Mechanical:
  • 1x 8 pin IC socket
  • 1x 14 pin IC socket
  • 1x 10 pin socket strip
  • 1x 12 pin socket strip
  • 1x connector
  • 2x MIDI socket 5 pol 180°
  • 1x push button
  • 1/3 160x100mm 2.54mm raster stripboard

Example Code

midi_to_servo_01.zip
midi_to_motor_01.zip
midi_to_fastpwm_01.zip

USB-Midi hack for the Leonardo

https://github.com/rkistner/arcore

MIDI Library

MIDI Library 4.2
MIDI Library Callbacks Description

Knowledge

The Arduino Pro Micro clone

https://www.sparkfun.com/products/12640

The cheap chinese clones don`t have the 3.3V converter on the board, they have a 5V converter. That means when powered over USB the Pro Micro runs on 4.7V. To close the jumper will avoid that (it´s next to the USB socket). But never power the Pro Micro again over the RAW input! Check the original sparkfun schematic for details.

MIDI Specifications

http://www.midi.org/techspecs/midimessages.php http://dernulleffekt.de/midi/table1.html
http://dernulleffekt.de/midi/table2.html
http://dernulleffekt.de/midi/table3.html
http://dernulleffekt.de/midi/table4.html