A Teensy-based DIY USB-MIDI controller demo. This chip’s biggest characteristic is being able to pretend that it’s a human interface device (HID), such as using a keyboard and mouse when connected by USB. If succeed, “Done uploading” text will be shown (Only for Arduino Due) Connect USB to “Native USB” port in Arduino … It allows you to turn your Arduino Uno (or any other device using an AVR-USB chipset like the 8u2) into a driverless HID/Midi device. I believe it will help me a lot. That’ll be the end of the loop() function: Now you need to write the midiCommand() function that you’ve called in the loop. Since the USB mini host shield operates on 3.3V and the USB midi keyboards I use require 5V, it is required to adjust the shield's output voltage by cutting the 3.3V line that goes to the USB out Vcc, so, we can later connect it to 5V. Ultimately, I am building a MIDI Octopad, I have it working on the arduino uno as a USB to MIDI device and nano using hairless midi. You just plug your board into your personal computer, upload a MIDI USB example, and it will appear to your computer as a MIDI controller. Thy will work on any of the USB-native Arduino boards, like the MKR boards, Leonardo, Micro, Yún, and Nano 33 IoT. The first time you launch it, it should prompt you to set your MIDI input preferences. MIDI USB The following is a modification of the basic MIDIUSB write example, by wrapping the noteOn and noteOff code in logic you could … Migration has been made as easy as possible: only the declaration of the MIDI object has been modified, the rest of your code remains identical. Today […] (1x) Arduino Uno Amazon (1x) usb cable Amazon (1x) breadboard (this one comes with jumper wires) Amazon (1x) jumper wires Amazon (1x) MIDI to USB Cable Amazon. 1. In this video we will focus on Potentiometers.Visit Notes and Volts to download the software and more! I'm interested in making an Arduino based MIDI controller to talk to my computer. Since each bit position is a power of 2 , bit shifting to the right is the same as dividing by 2. Type “Midi” in the textbox and install MIDIUSB library by Gary Grewal. The firmware is a slightly modified version of MOCO/MICO – USB to MIDI Converter. Remember how 16 is a special number in MIDI? Reply Of course you can use any other compatible programmer. I also did tests with Fl Studio and Traktor. On most modern Arduino variants, it means reflashing the Arduino’s bootloader chip, but then you have to reflash it back to the original every time you want to update your software. I have an Arduino Uno and an Arduino Mega available; I'm using a WS2812B strip with +ve, ground and data cables ; I don't believe there's a way to read midi from my piano direct to the arduinos without reflashing the USB controller. Reply If you have the ability to measure latency, you will see an increase due to the serial buffer capture and re-transmit instructions. There is an example in the Forty Seven Effects documentation that uses the Arduino tone library as a simple MIDI instrument. If you want to control your computer directly over USB, take a look at my tutorial on how to build an Arduino MIDI controller.You can follow the instructions for the Leonardo (it has the same chip as the micro). To write the firmware for ATmega8 we need a programmer. In order use this you'll need to follow the guide on How to install libraries to install the MIDIUSB library. 3 years ago. Arduino (Pro) micro as a USB-MIDI device (MIDIUSB library) - and change its name to whatever you wan. So could I build this then just hook up my build from the ATmega328 and this build will power my circuit and do MIDI over USB? When I play two notes together, two ‘note on’ messages arrive in quick succession. Arduino and its USB cable. It must be popular request and i didn't found any ready-to go device. Thank you so much. load the midi example to the arduino board: File -> Examples -> MIDIUSB -> MIDIUSB_write -> upload open your favourite midi software and choose arduino as midi input now you should get midi events every second First example – Button This has been extremely helpful. The difference is in the firmware that we will put in ATmega8. Hardware Requirements MIDI uses the hardware serial ports to communicate with standard MIDI devices at 31250 baud. For this reason I'm connecting via USB to my mac. MidiShield1.zip contains entire AVR Studio 4 project. After I burned the firmware in ATmega8 and made connections, I connected the USB cable to the computer. Can i use diode 3.3V 0.5W or diode 3.6V 1W?? MIDI to the VS1053 module 14 days ago. To mount the USB connector we need to make two holes of 2-2.5mm. "Serial USB to TTL CH340" does not work as a dedicated programmer for ATMEGA microcontrollers. It’s much more comfortable than using a software based serial to midi converter which has to run in the background all time. GND must be connected for RX TX signals to flow between the arduino and the interface. There is a more complex solution to this problem. View On GitHub; This project is maintained by tigoe. MIDI This takes a #defined BPM and // makes the appropriate clk rate. Everything in, goes right out. There is a more complex solution to this problem. Reply I have an CP1202 and I don't find how to program my Atmega8 with this hex, do you have a link where I can learn how to do please ? Even though your device is sending out MIDI, no one’s listening. Compatibility For more on that, see this MIDI to DAW tutorial. This firmware is uploaded in the ATMEGA8U2 chip managing the USB, and changes the default USB serial descriptors to the MIDI ones. If you’re not using a DAW, download a free MIDI synth player like Sforzando. If not, I recommend picking up an Arduino Getting Started Kit, checki… However, this does not seem to be the same thing. If i don't have diode 3.6v. You can read this instructable: https://www.instructables.com/id/XY-MIDI-Pad-with-Arduino-and-TFT/ where I successfully used this interface. In this tutorial, I will show you how you can make an Arduino (Pro) Micro, Leonardo, or any Arduino with an ATmega32U4, became a true USB-MIDI class compliant device. A collection of sound examples for Arduino. Introduction Now you’re ready to go on to making a MIDI instrument. This functions reads data from the USB and packages it into a MIDI packet (midiEventPacket_t struct). Easy. I dont want to use Hairless MIDI. Thank you again or clearing that up. For a more general introduction to MIDI on a microprocessor, see the the MIDI notes. You can power this interface in two ways, from USB 5V, or 5V from the other module(Arduino), but not both!!!. Here are some links about usbasp and avrdude: http://www.elecrom.com/avrdude-tutorial-burning-he... https://learn.adafruit.com/usbtinyisp/avrdude. Communication. Parts list. It can also be used to record audio in both PCM (WAV) and compressed Ogg Vorbis. Reply USB-MIDI I/Os for Arduino Allows a microcontroller, with native USB capabilities, to appear as a MIDI device over USB to a connected computer. https://www.instructables.com/id/XY-MIDI-Pad-with-... http://openhardware.ro/rotary-encoders-experiment... https://www.instructables.com/id/XY-MIDI-Pad-with-Arduino-and-TFT/. Choose your Arduino as a MIDI input. In fact it is simple. Then you’re ready to start. Currently I am using a software to convert serial data into MIDI data, but it is totally possible to make the Arduino(UNO only) to look like a HID MIDI device by installing the MIDI firmware on the Atmeg8u2 microcontroler which present on the board just after USB connector. MIDI Formatting MIDI data formatting may seem strange at first, but it is easy to get the … I used this interface to send commands to FL Studio. This library depends on the FortySevenEffects MIDI Library. Im not sure if this is too old to be posting now but hopefully I will get a reply. This is actually why I originally abandoned the Arduino as ISP research because I could not get it to work on the CH340 chips. // This is a simple MIDI THRU. … For more convenience when updates are needed, a "dual mode" is embedded, allowing to switch back to the USB serial : when the PB2/MOSI pin of the ATMEGA8U2 is connected to ground, the Arduino is a classical one again, and you can change and upload a new … Hi, thank's for your nice work. Reply on Introduction. This example echoes incoming USB MIDI data back to output, as well as prints it to the Serial Monitor. The Arduino Micro can be recognized as a USB device, such as a mouse or keyboard, natively, but not as a MIDI-USB device. This will open the Library Manager. It is under development. This Yamaha Disklavier grand piano is pretty good, as are some of the other SoundFonts on that page. This demo uses Ableton Live and the Sugar Bytes Turnado plugin. The format of the protocol is explained in the first chapter. Arduino (Pro) micro as a USB-MIDI device (MIDIUSB library) - and change its name to whatever you wan In this tutorial, I will show you how you can make an Arduino (Pro) Micro, Leonardo, or any Arduino with an ATmega32U4, became a true USB-MIDI class compliant device. Example // This is a MiDI clk generator. But in this case, this project it is not made compatible with a bootloader. This file does not give names to sharps, only flats. At step 9 is an example taken from Arduino IDE which is exactly what you need ... send one note to PC. This simplifies things on the Max/MSP end, and also allows us to send data from more than one sensor, button etc. Unzip the sound files, then click Import in Sforzando to open the SoundFont files. MIDI works with all Teensy models. It looks like this: When you upload this, it will send out MIDI notes over and over. MIDI USB. So if you want to write, for example, pitchA4 instead of 69, then include this file at the top of your sketch after the MIDIUSB library like so: Once you’ve included this file, you can refer to note numbers by their pitch names, from pitchA0 (note value 0) to pitchC8 (note value 127). Thank you again. In this example, the MIDI out of a controller is connected to the MIDI in of a tone generator module. So if the MIDI command value you sent was 0x90, then when it’s shifted by 16, you have 0x9, which is the command value independent of which channel you’re playing. Upload the attached code. I found out that the midi standard now specifies a way of transporting midi over USB, and in fact most of the modern keyboard controllers, etc have this built in. To start, open the example from File > Examples > Teensy > USB_MIDI > MIDI_name. In this video I show how you can make anArduino (Pro) Micro, Leonardo, or any Arduino with an ATmega32U4, became a true USB -MIDI class compliant device. The following description will work with Atmega32U4 Arduino Boards. Since the USB mini host shield operates on 3.3V and the USB midi keyboards I use require 5V, it is required to adjust the shield's output voltage by cutting the 3.3V line that goes to the USB out Vcc, so, we can later connect it to 5V. You should be set, the Arduino should now appear as a MIDI device in your DAW/Music Software. It contains 16 arcade buttons, 7 rotary potentiometers and 3 slider potentiometers. The window below will appear. If you only need the MIDI DIN output, only connect one DIN socket as described in Spider’s pdf. If you're interested in building a MIDI synthesizer, the MIDI Shield is quite capable. 7. [Alex TC] from [Bricogeek] posted a tutorial about how to interface Arduino and Android replacing the ADK shield by Google with commonc sensors and actuators. In chapter three, example code for sending MIDI is presented. Pressing softly on the keys has low velocity, and pressing hard has high velocity. You can only load programs if you have previously put a bootloader in the MCU, which is not the case for this project. The USB-MIDI Arduino library depends on this library and the MIDIUSB library.. USB-MIDI uses the latest Arduino IDE depends feature in the library.properties file installing all the dependencies automatically when installing from the IDE. I assembled device, Win7 defined and put the driver, but when I look through MIDI messages to MIDI OX, are continuous errors and incorrect messages, tell me what's wrong? This is really useful for sending data from Arduino to applications like MadMapper, Max and Ableton Live. Print Email. Share it with us! The controller sends note-on, note-off and controller messages, to be interpreted into sound by the module. MidiShield1Hex.zip contains only hex file. Editing the name is straightforward, but the length must be updated to match the number of characters. Use USBMIDI object in the same way as Serial (except no need for Serial.begin(31250)call) for writing and reading MIDI data. Did you make this project? 7 Program your Arduino. Home Projects Interfacing(USB – RS232 – I2c -ISP) Projects Teensy MIDI USB foot controller for controlling Mobius Looper using Arduino. We will use the Arduino MIDI libraryto make it simple for us. Upload the source code to Arduino board by clicking “Upload”. Assuming you have connected a valid MIDI output circuit, the chromatic scale should be received by any MIDI receiver device that is connected to the circuit via a MIDI cable. These examples make your microcontroller show up to your personal computer as a MIDI controller. It shifts all the bits in the number or variable you’re shifting to the right. This demo uses Ableton Live and the Sugar Bytes Turnado plugin. These examples make your microcontroller show up to your personal computer as a MIDI controller. If you can't write the firmware outside the project will have to mount the ISP connector(5x2pin) and make connections according to schematic. As other project, like HIDUINO, or MOCOLUFA (thanks to them for inspiration), USBMIDIKLIK allows your Arduino board to become a very reliable MIDI IN/OUT USB interface. The communication path is unidirectional. MIDI Controllers // This has been validate on an Arduino UNO and a Olimex MIDI Shield boolean byteReady; unsigned char midiByte; void setup () { // put your setup code here, to run once: // Set MIDI baud rate: Serial.begin (31250); byteReady = false; … Chapter two goes over the hardware. Install it. Thy will work on any of the USB-native Arduino boards, like the MKR boards, Leonardo, Micro, Yún, and Nano 33 IoT. MIDI, the Musical Instrument Digital Interface, is a useful protocol for controlling synthesizers, sequencers, and other musical devices. If you add it to your sketch at the top like so: then you can access the frequencies array like using the midi note number so: You could combine these two utility files to get the frequenices by note name: This file gives names to all the note frequencies. You can also install this library: https://github.com/FortySevenEffects/arduino_midi_library. We’ll use the Steve Reich Piano Phase melody that you used in the melody exercise. Then download an instrument file. I'll see your other instructable. I have a few USB to Serial USB to TTL CH340 Module with STC Microcontrollers. Build a MIDI Controller with your Arduino. ...about $2...2. I also read about Arduino as ISP but was not sure if this was the right method. on Introduction, I think is better to stick with 3.6V, anyway at first tests that I made a few years ago I use 3.3v diode and it worked (somewhat unstable), 5 years ago http://openhardware.ro/rotary-encoders-experiments... RX from Atmega8 to TX of Atmega32 (or TX of Arduino), TX from Atmega8 to RX of Atmega32 (or RX of Arduino), GND from Atmega8 to GND of Atmega32(Arduino). Now we can make first test with the Arduino IDE. usb malfunctioned. If you’re communicating with a software synthesizer or digital audio workstation, you’ll want the MIDI USB examples. I had done previous arduino midi projects with a midi shield from Sparkfun, but his mac doesn’t really have a native Midi interface. This example shows how to create a 4 potentiometer and 2 push button MIDI controller. This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. So, for further experiments I give up using MIDI library. The USB type b port broke so I removed the port and wanted to know if I could directly connect the PCB contact pads to my Arduino and read the coming out. I apologize, because I had tried the example from step 9 , and I do not communicated to you, sorry. I2S It demonstrates all that's necessary to initialize, receive and send USB MIDI data. I can not thank you enough. I also tested with Arduino Mega2560 and SoftwareSerial (and hardware serial). One of the potentiometers allows you to change the midi channel of the buttons, making it possible to have four banks of buttons, 16x4. In this case we use Arduino Duemilanove (Arduino Due). A collection of Sound, MIDI, and I2S examples for Arduino Setup Introduction Tone Melody MIDI MIDI USB MIDI Serial MIDI to the VS1053 module MIDI BLE MIDI Controllers I2S VS1053 MP3 playback Inventory. In chapter three, example code for sending MIDI is presented. Hope that makes sense. It sends messages by making calls to the Arduino Serial library. The pitchToNote.h file gives you note names for the MIDI values. Do you will release toolbox and/or library based on your code? Install the Arduino IDE and install the two libraries needed (Oversampling and USB-MIDI) from Tools->Manage Libraries. but when i try to connect with pc. If so, do I also need some sort of voltage regulating system? Connect the Arduino with a USB cable to your computer. Inventory. Hi. You’ll write the function later, but with that information, you can write the call to the function: All the notes in this melody are sixteenth notes, which is 1/4 of a beat, so delay that long. Example of Arduino receiving MIDI notes from a MIDI keyboard, and then printing the notes to a computer via USB. https://www.arduino.cc/en/Hacking/DFUProgramming8U2. This video is a tutorial on getting MIDI-over-USB to work with the Arduino Due. Or can I just connect Vcc from the USB-B to Vcc on the ATmega 8? To build everything, we'll need some special components: An Arduino SD card module (~$10 for a pack of five) Two female 5-pin DIN connectors (~$5 for a pack of ten) As you can see it works with the standard example File>>Examples>>Communication>>MIDI. If you have a Digital Audio Workstation like Ableton or GarageBand, then you can open it, configure the MIDI input to look for your Arduino, and the notes will play. This lab covers only the details of MIDI communication on the Arduino module. 8. The USB-MIDI Arduino library depends on this library and the MIDIUSB library.. USB-MIDI uses the latest Arduino IDE depends feature in the library.properties file installing all the dependencies automatically when installing from the IDE. See the Wikipedia articlefor more information on the standard. I an trying to get this to work on Mac but I will check Windows 10 and Linux as well and let you know. These are the frequencies corresponding to A4 and G4, respectively. Step 1: Preparing the USB Mini Host Shield to Drive a 5V Midi Device. This breakout board is the ultimate companion for the VLSI VS1053B DSP codec chip. One of the solutions is to format all of our data to conform with MIDI in the Arduino code, so that we can simply send a stream of MIDI formatted data from the Arduino to Max/MSP. You can do all sorts of stuff with the audio as well such as adjusting bass, treble, and volume … When you include it at the top of your sketch like so: you can then refer to frequency values using names. I'm interested in making an Arduino based MIDI controller to talk to my computer. For a more general introduction to MIDI on a microprocessor, see the the MIDI notes. I am familiar with how to upload sketches to an Arduino, even if i use a TTL converter on the ATmega chip alone on breadbord. 7.1 Download the necessary libraries . You will need: 1. The format of the protocol is explained in the first chapter. Following the schematic above, solder a 220Ohm resistor to MIDI pin 4. Motivation: Playing in a 2 … Start a new sketch by including the MIDIUSB library: The song will be at 72bpm, and the melody will be the same as it was in the melody exercise, so your global variables will look like this: There’s nothing you need to do in the setup() function, so keep it blank. Example #2: MIDI-to-control-voltage. https://www.instructables.com/Arduino-As-ISP-Burn-... https://www.instructables.com/Programming-Chips-Wi... https://www.arduino.cc/en/Hacking/DFUProgramming8U2, https://www.instructables.com/The-Idiots-Guide-to-Programming-AVRs-on-the-Chea/. The only downside of using Teensy compared to Arduino is that there just aren’t as many examples or tutorials in regards to MIDI controller development, therefore I’ve written this tutorial to help overcome this shortcoming and aid in highlighting Teensy as a great hardware platform for the audio/MIDI maker community. Maintainer: lathoub. MIDI devices are generally grouped in to two broad classes: controllers (i.e. If the pin numbering is unclear, refer to the pictures above. Introduction The Arduino UNO is a popular open-source microcontroller that, in many respects, is a perfect complement to the extensible nature of the Music Instrument Digital Interface (MIDI) protocol. It appears you can pick and choose as the results are the same. This is the code that I use to send midi messages: ... here in comment is not too readable, but you can read the two articles above... and there you will find the code. Just to make sure I am clear, with your build here could I ultimately remove any and all development boards? This name.c file may be added to any USB MIDI project to customize the MIDI … The pitchToFrequency.h file gives you an array of floating point values called pitchFrequency corresponding to the frequencies of each MIDI note. VS1053 MP3 playback Instead I make my (little)code for sending MIDI messages with this interface. Author: lathoub. At www.aliexpress.com you will find usbasp with price starting at $1.20 with free shipping ... (which is amazing). The MIDIUSB library needs that number, so that’s why you shifted it in the function. I also removed the ATmega328 chip on the Arduino and and hooked it up in a breadboard and one point and got it working with Hairless MIDI using the TTL converters to power it and plug it in to the computer. MidiUSB.sendMIDI(midiEventPacket_t event) Using this function you will send a MIDI encoded packet to the PC. No glitches! Windows immediately detected the device and installed the standard drivers. In order to use these examples on a MKR Zero, MKR 1000, MKR 1010 or other board, you’ll need to install the MIDIUSB library. MIDI, the Musical Instrument Digital Interface, is a useful protocol for controlling synthesizers, sequencers, and other musical devices. Then send a note off command (0x80) for the same pitch: Finally, add one to the note counter, then make sure it’s no larger than the length of the melody (12 notes). MIDI MIDI USB MIDI Serial MIDI to the VS1053 module MIDI BLE MIDI Controllers I2S VS1053 MP3 playback Inventory. The Fliper DJ is a MIDI controller which is based in the Arduino platform. In this video I show how you can make anArduino (Pro) Micro, Leonardo, or any Arduino with an ATmega32U4, became a true USB -MIDI class compliant device. is equipped with ATmega328P etc.). Start with the NoteOnOffEverySec example that is based on the original MidiUSB sketch.Note the only difference is in the declaration. Module is finished after installing 4pins connector. In this instance- you need both an Arduino and a USB Host shield. For example: would set f to 391.995. In order use this you'll need to follow the guide on How to install libraries to install the MIDIUSB library. You just plug your board into your personal computer, upload a MIDI USB example, and it will appear to your computer as a MIDI controller. This is completely separate from, and can be used together with USB MIDI.Teensy 3.6 can also support USB Host MIDI, and with Ethernet hardware RTP-MIDI is also possible. When writing a program, you can select and wr… This repo introduce how to use the Wio Terminal as a USB MIDI (Musical Instrument Digital Interface) Device, where it can be used to control musical instruments! A Teensy-based DIY USB-MIDI controller demo. This example has 2 files, which Arduino shows in tabs. So, for example D-sharp is the same as E-flat in this file, so you’d call pitchE8b for both D-sharp 7 and E-flat 8. Arduino and MIDI. It is very helpful for making a MIDI controller with Arduino. Jumper Cables. Just plug the serial ports of the two microcontrollers and GND: RX from Atmega8 to TX of Atmega32 (or TX of Arduino) TX from Atmega8 to RX of Atmega32 (or RX of Arduino) GND from Atmega8 to GND of Atmega32 (Arduino) A few weeks ago I started working on a MIDI controller using Arduino and ATmega32. I did not completed projected yet. Arduino MIDI Pieter P, 08-03-2017 This is a guide that covers the basics of the Musical Instrument Digital Interface (MIDI) protocol and its implementation on the Arduino platform. Arduino MIDI Pieter P, 08-03-2017 This is a guide that covers the basics of the Musical Instrument Digital Interface (MIDI) protocol and its implementation on the Arduino platform. You can use this to program an Atmega 8 after you burn a bootloader with a "real" programmer... like USBASP. Many newer MIDI devices feature a USB port instead of (or in addition to) regular MIDI ports. Just plug the serial ports of the two microcontrollers and GND: In my set-up I am not connected VCC because USB interface is powered by USB port(or HUB) and Arduino(Atmega32) is powered separately. I will use the Arduino MIDI library in future projects, especially when we need to parse complicated incoming messages. Thank you for comment! I can do the build just fine but Im not sure how to do Step 8 Burning the Firmware. And if the problem persists, do not hesitate to contact me again. Here is the complete sketch. One of the secrets of Arduino Leonardo is the in-built USB MIDI support. Let’s start with a simple MIDI melody player. So you will need a proper programmer anyway. MIDI BLE The one in the image is a USBasp. (not with MIDI library). CP1202 is a usb to serial/uart converter. This example from step 9, is making the notes follow automatically. A collection of Sound, MIDI, and I2S examples for Arduino, Setup I do have a few Arduinos but I also I am fairly sure I have a programmer. 8 days ago. No other drivers is required (tested on Windows7-64bit and WindowsXP-32bit). USB-MIDI. Arduino (Uno, Mega, etc) 1.1. Now we can make connections between the Arduino board and USB module.. It’s widely used in the music world, for everything from digital audio workstations (DAWs) to musical keyboards. Posted By: arduino engineer on: December 17, 2014 In: Interfacing(USB – RS232 – I2c -ISP) Projects No Comments. MidiSeq.ino: The simple MIDI sequencer Arduino sketch The sketch does not use the Arduino MIDI library. A Teensy board. The project was designed to use easy to find components. Sound & Music Examples for Arduino. With just a standard Arduino UNO, a breadboard, and a handful of potentiometers, switches, and wires, you can build your own MIDI controller. These examples make your microcontroller appear to your personal computer as a MIDI controller. This page documents ordinary serial MIDI which uses round 5-pin DIN … It allows the player to use the keys on the controller to play sounds from the module. This is a series of three videos, where you'll learn how to use the MIDIUSB library, how to … If you’re using the MIDIUSB library, there are just a few things you’ll want to remember as you build other examples: This should be at the top of every MIDIUSB sketch: Most MIDI commands are three bytes, a command byte followed by two data bytes. as fer as i know i solder the connections correctly. Amazing ! There are simple tone examples, MIDI examples, and examples for sound playback components. download the arduino ide: www.arduino.cc; install the arduino ide; install the MIDIUSB library: Sketch -> Include Library -> Library Manager… -> search for “MIDIUSB” -> install; load the midi example to the arduino board: File -> Examples -> MIDIUSB -> MIDIUSB_write -> upload The MIDI USB examples will work on any of the USB-native Arduino boards, like the MKR boards, Leonardo, Micro, and Yún. That actually confirms what I thought was the case. Arduino equipped with ATmega32U4 is famous for the Arduino Leonardo board in addition to Pro Micro. Looking at other examples of Arduino MIDI (for example, MIDI Output using an Arduino), they all seem to wire up a dedicated 5 pin DIN.Which makes sense as this is the original cable to connect keyboards, expanders and sequencers together. Melody But during experiments I realized that interface module can be a stand-alone project and can be used by those who are already working on similar projects. The sketch sends messages on MIDI channel 1. Parts list. Congratulations, you’ve got MIDI! Other devices that might also work are Arduino Leonardo and Arduino Micro. MIDI, an acronym for Musical Instrument Digital Interface, is a protocol and interface standard designed to allow musical instruments and computers to connect and communicate with each-other. Teensy MIDI USB foot controller for controlling Mobius Looper using Arduino. All USB related code has been moved into a separate repository Arduino-USB-MIDI, USB MIDI Device support with MIDIUSB, still using this library to do all the MIDI heavy-lifting.