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Charles Karpati |

JS Tutorials

• https://developers.google.com/web/fundamentals/native-hardware/build-for-webusb

Library - Processor Compatability

• https://github.com/webusb/arduino

• https://learn.adafruit.com/using-webusb-with-arduino-and-tinyusb/library-board-and-tinyusb-selection

• https://learn.adafruit.com/using-webusb-with-arduino-and-tinyusb/compatible-microcontrollers

Midi USB Supports

• AVR core > 1.6.8

• SAMcore > 1.6.4

• SAMDcore > 1.6.1

• For any microController w/ native usb capabailities

• 9ATMega32u4 & ARM Boards

• leonardo, micro, zero

Tiny USB Supports

• nRF52_arduino

• ArduinoCore_SAMD

• expressif : ESP32-S2

• STM: STM32

• SAMD: SAMD 11, 21, 51

Board - Library Compatability

Pro Trinket

• https://github.com/adafruit/Pro_Trinket_USB_Mouse

Pro Micro

• atmega32U4

• https://www.iot-experiments.com/webusb-arduino-pro-micro-atmega32u4/

Circuit Playground Express

• ATSAMD21

• https://learn.adafruit.com/adafruit-circuit-playground-express/circuitpython-hid-keyboard-and-mouse

Circuit Playground

• ATMega32u4

• ?noncompat w/tinyUsb?

Arduino Zero(42$)/ Genuino

• SAMD21

Arduino Pro Mini

• atmega 328 needs usb-serial adapter

SEEDuino Xiao

• SAMD21 small $5

Teensy Boards

• Natively Support USB

most arduino boards are atmega328 or atmega32u4

atmega32u4

• supports midiusb as it is native usb, as do all avr chips.

SAMD 21

• atmels mcu's boards will always provide keyboard and mice emulation.

• uses 32 bit ARM core m0+

midi

// https://github.com/georgemandis/circuit-playground-midi-multi-tool

// https://www.arduino.cc/en/Tutorial/LibraryExamples/EEPROMRead // https://www.arduino.cc/en/Tutorial/LibraryExamples/EEPROMIteration //

// https://www.midimountain.com/midi/midi_status.htm

// Name (status byte) 2nd byte (data 1) 3rd byte (data2) // Note on/Off(1/16) Number (0-127) Note Velocity (0-127)

// https://www.midimountain.com/midi/midi_control_mode.html

• If not exists -> write vars into eeprom

• pull vars from eeprom

• use vars as write channle, mode, note

• on recieve midi -> midi recieved callback()

• insert into eeprom

midi usb - 1) send back whatever was given (chn, action/note, velocity, etc..) <- 2) store each seperately in eeprom 3) automate this n times. sufian - video chat david - wp features

General Midi Spec

NoteOnMsg

• Status Byte - KeyBend, Pitch, Noteof, Drums : 10010000

• • first bit is..

• • first 4bits are: note on command : 1001

• • last 4 bits are: ch.1 : 0000

• Data Byte - Note Key #, #'s35-81=drums, 56=cowbell : 01111101 = 60(c3)

• Data Byte - Velocity = 01111111 or 00000000

0. connect to device

1. choose 1 of 4 buttons

2. choose type toggle trigger mommentum

3. choose midi ch, cmd

(ch,cc,val)

Assign

1. Channel

• abreviations: ch

• values 1-16

2. Message

• abreviations: cc

• values 0-127

3. Type

Types

Mommentum

1. switch on ( 1, 121, 0 ) -> Start on Downpress

2. switch off (1, 121, 1 ) -> Cut on Release

Toggle

1. switch on ( 1, 125, 0 ) -> Starts on Downpress & kept on Release

2. switch off (1, 125, 1 ) -> Starts on Downpress & kept on Release

Trigger

1. Fires Midi on ( 1, 128, 1 ) -> Same message every time

for the very reason that keys do no take commands from ableton in order for remapping to work, neither do my boxes. It is purely an internal schema that is created in-app.

Ableton Midi Mappings

Live

You might want to create your own custom MIDI mappings in the following situations:

• Your controller doesn't have an included Control Surfaces. Specially written scripts which allow controllers to interface with Live. They enable tactile control of Live through pre-defined parameters.

• Or you want to override some parameters.

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