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https://github.com/Microsoft/pxt-midi
A MIDI interface for MakeCode
https://github.com/Microsoft/pxt-midi
makecode microbit midi
Last synced: 3 months ago
JSON representation
A MIDI interface for MakeCode
- Host: GitHub
- URL: https://github.com/Microsoft/pxt-midi
- Owner: microsoft
- License: mit
- Created: 2017-04-22T00:26:45.000Z (about 7 years ago)
- Default Branch: master
- Last Pushed: 2023-06-03T14:37:54.000Z (about 1 year ago)
- Last Synced: 2024-04-02T13:13:07.905Z (3 months ago)
- Topics: makecode, microbit, midi
- Language: TypeScript
- Homepage: https://makecode.microbit.org/pkg/microsoft/pxt-midi
- Size: 79.1 KB
- Stars: 32
- Watchers: 15
- Forks: 24
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Lists
- awesome-microbit-zh - MIDI - MIDI(乐器数字接口,为电子乐器等演奏设备定义各种音符或弹奏码) pxt驱动（测试版）. (编程 / JavaScript 和 MakeCode)
- awesome-calliope - MIDI - Emuliert einen Midi Ausgabekontroller (MakeCode Pakete)
README
# MIDI [](https://travis-ci.org/Microsoft/pxt-midi)
Emulates a MIDI output controller.
## Usage
### Setup
You will need to connect a MIDI via serial, radio or bluetooth get it to "talk" to the MIDI output device.
* for Bluetooth, use the [bluetooth midi package](https://pxt.microbit.org/pkg/microsoft/pxt-bluetooth-midi).
* for bridge applications like [Hairless MIDI](http://projectgus.github.io/hairless-midiserial/), call ``useRawSerial``
```block
midi.useRawSerial()
```
### Playing tones
Place a ``||midi play tone||`` block to play a single note (on channel **1**).
The frequency is mapped to the nearest note.
```block
midi.playTone(Note.A, music.beat(BeatFraction.Whole))
```
### Tone on / off
Place a ``||midi tone on||`` block to start a tone (on channel **1**).
Place a ``||midi tone off||`` to turn it off.
```block
midi.toneOn(Note.A)
midi.toneOn(Note.B)
basic.pause(music.beat())
midi.toneOff(Note.A)
midi.toneOff(Note.B)
```
### Drums
Place a ``||midi play drum||`` block to play a drum sound. This blocks plays sounds on channel **10** which is reserved for drums.
```block
midi.playDrum(DrumSound.HandClap)
```
### Pitch bending
Place a ``||midi pitch bend||`` block to applying a sound bending effect to channel **1**.
```block
midi.pitchBend(8192 + input.acceleration(Dimension.X) * 8)
```
### Channels
You can access and manipulate individual channels using the ``||midi channel||`` block.
Channels are indexed from **1 to 16** and mapped internally to **0..15**.
```block
let piano = midi.channel(1);
```
#### play a note
```block
let piano = midi.channel(1);
piano.note(30, music.beat(BeatFraction.Whole));
```
#### play a note on / off
```block
let piano = midi.channel(1);
piano.noteOn(30);
basic.pause(100)
piano.noteOff(30)
```
### change instrument
```block
let trumpet = midi.channel(2);
trumpet.setInstrument(MidiInstrument.Trumpet);
```
#### change pitch bend
The pitch bend expects values between ``0..16383`` where ``8192`` means no bend.
```block
let piano = midi.channel(1);
piano.pitchBend(8192 + input.acceleration(Dimension.X) * 8)
```
## Radio serial
You can use radio to send MIDI messages from various @boardname@ and play them via [Hairless MIDI](http://projectgus.github.io/hairless-midiserial/).
```typescript
radio.setGroup(10)
// routes all radio messages via radio
midi.setTransport(function (data: Buffer) {
led.toggle(3, 4)
radio.sendBuffer(data);
})
// proxies all radio buffers to serial
radio.onReceivedBuffer(function (buffer: Buffer) {
serial.writeBuffer(buffer);
led.toggle(4, 4);
})
// test send message
input.onButtonPressed(Button.A, function () {
led.toggle(0, 0)
midi.playTone(Note.C, 500)
})
```
## License
MIT
## Supported targets
* for PXT/microbit
* for PXT/calliope
(The metadata above is needed for package search.)
## Code of Conduct
This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/). For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact [[email protected]](mailto:[email protected]) with any additional questions or comments.