web-midi-emitter v0.4.0

web-midi-emitter

easy Web MIDI message handler

Installation

npm install --save web-midi-emitter

API

WebMIDIEmitter

• constructor(access, deviceNameMatcher)
  • access: MIDIAccess
  • deviceNameMatcher: string or RegExp

Instance methods

• send(data: number[], [ timestamp: number ]): void
  • send midi data to the midi device
• clear(): void

Events

• statechange
  • emitted when change the state of the midi device
• midimessage
  • emitted when receive midi data from the midi device

How to use

const WebMIDIEmitter = require("web-midi-emitter");

window.navigator.requestMIDIAccess().then((access) => {
  const device = new WebMIDIEmitter(access, "Launch Control");

  device.on("statechange", (e) => {
    console.log(e);
  });

  device.on("midimessage", (e) => {
    console.log(e.data);
  });

  device.send([ 0x90, 0x64, 0x7f ]);
});

License

MIT