blinktjs

Blinkt! class (ES6) for node.js

Control your Pimoroni Blinkt! in javascript. 8 APA102 LEDs for your Raspberry Pi https://shop.pimoroni.com/products/blinkt. Original python libraries available https://github.com/pimoroni/blinkt.

Usage

Set the pixels with setPixel() or setAll() and call draw() to write the pixels to the device.

• setPixel(0, 255, 255, 255, 0.5); - setPixel takes the pixel number (0-7), rgb values and optionally brightness
• setAll(255,255,255, 0.3) - sets all pixels to a color, with an optional brightness value
• off() - turn off all lights. This calls draw() internally, as it's meant to be a single call to turn everything off.
• rotateLeft() - shift leds to the left
• rotateRight() - shift leds to the right
• draw() - always call draw to write the pixel data to blinkt

Additionally, there are some startup options

• defaultBrightness - the brightness value to use if none provided. 0.5 by default.
• CLK - clock pin, 24 by default
• DAT - data pin, 23 by default
• pixelCount - number of pixels, 8 by default
• colorFormat - 'RGB' by default, you can also use 'HSL' and 'HSV'. HSL works, but isn't connected to led brightness, so not completely usable.
• clearOnExit - whether to call off() when the process exits. true by default.

Examples

const Blinkt = require('blinktjs');
const blinkt = new Blinkt({defaultBrightness: 0.2});

blinkt.setAll(255, 0, 0);
blinkt.draw();

See the examples folder for a few basic examples.