https://github.com/Microsoft/pxt-neopixel

A Neo-Pixel package for pxt-microbit
https://github.com/Microsoft/pxt-neopixel

makecode microbit neopixels pxt ws2812b

Last synced: 3 months ago
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A Neo-Pixel package for pxt-microbit

• Host: GitHub
• URL: https://github.com/Microsoft/pxt-neopixel
• Owner: microsoft
• License: mit
• Created: 2016-07-26T16:31:59.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2024-02-26T20:09:53.000Z (4 months ago)
• Last Synced: 2024-04-02T13:13:08.115Z (3 months ago)
• Topics: makecode, microbit, neopixels, pxt, ws2812b
• Language: TypeScript
• Homepage: https://makecode.microbit.org/pkg/microsoft/pxt-neopixel
• Size: 341 KB
• Stars: 55
• Watchers: 17
• Forks: 132
• Open Issues: 21
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt
  • Security: SECURITY.md

Lists

• awesome-microbit-zh - Neopixel - Neo-Pixel(Neo-Pixel是一种流行的全彩led灯(每个led独立编址)，效果绚丽)的pxt驱动. (编程 / JavaScript 和 MakeCode)

README

        
# NeoPixel driver

This library provides a driver for various Neo Pixel LED strips, 

see https://www.adafruit.com/category/168.

NeoPixels consist of programmable RGB LEDs (WS2812B), every one of them controlled

separately.  

## ~ hint

See [Microsoft/pxt-ws2812b](https://makecode.microbit.org/pkg/microsoft/pxt-ws2812b) for basic WS2812B led support. 

## ~

## Basic usage

```blocks

// Create a NeoPixel driver - specify the pin, number of LEDs, and the type of 

// the NeoPixel srip, either standard RGB (with GRB or RGB format) or RGB+White.

let strip = neopixel.create(DigitalPin.P0, 24, NeoPixelMode.RGB);

// set pixel colors

strip.setPixelColor(0, NeoPixelColors.White); // white

strip.setPixelColor(1, 0xff0000);     // red

strip.setPixelColor(2, 0x00ff00);     // green

strip.setPixelColor(3, NeoPixelColors.Blue);    // blue

// send the data to the strip

strip.show()

```

Use ``||setBrightness||`` to lower the brightness (it's maxed out by default).

Use ``||shift||`` or ``||rotate||`` to shift the lights around.

Use ``||setPixelWhiteLED||`` to set brightness of the white pixel for RGB+W strips. 

## HSL color format

Use `neopixel.hslToRgb()` to create colors using hue, saturation, and lightness.

## Example: Using accelerometer to control colors

This little program will let the position of the microbit control the color of the first LED.

This first LED will then get shifted further away every 100ms.

```blocks

let strip = neopixel.create(DigitalPin.P0, 24, NeoPixelMode.RGB_RGB)

while (true) {

    let x = input.acceleration(Dimension.X) / 2;

    let y = input.acceleration(Dimension.Y) / 2;

    let z = input.acceleration(Dimension.Z) / 2;

    strip.shift(1);

    strip.setPixelColor(0, neopixel.rgb(x, y, -z));

    strip.show();

    basic.pause(100);

}

```

## Supported targets

* for PXT/microbit

* for PXT/calliope

## License

MIT

## 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.