Library which takes a queue of colors and an instance of LED strip. It animates from color to color using the transition specified and sends the current color to the LED strip.
npm install colorqueue
npm install colorqueue
`
Usage
Mostl likely this will be used within another preconfigured setup such as (colorqueue-firebase)[]
Create new ColorQueue:
`
import * as dotstar from 'dotstar';
import * as colorqueue from 'colorqueue';
const SPI = require('pi-spi');
spi = SPI.initialize('/dev/spidev0.0');
const ledStrip = new dotstar.Dotstar(spi, {
length: 144
});
const colorqueue1 = new colorqueue.ColorQueue(ledStrip);
`
> The example below uses a DotStar led library but ColorQueue can be used with any thing that implements ILedStrip.
`
export interface ILedStrip {
all(r: number, g: number, b: number, a?: number): void;
set(led: number, r: number, g: number, b: number, a?: number): void;
clear(): void;
off(): void;
sync(): void;
}
`
Methods
Start the color queue
(Iterate through color transitions and update LEDs every X milliseconds based on configuration interval)
`
colorqueue.start();
`
Stop the color queue
`
colorqueue.clear();
`
Add color to internal list
`
colorqueue.add(color);
`
Remove color by order which is a unique id as millisecond timestamp
`
colorqueue.remove(color.order);
`
Remove all colors and turn LEDs off
`
colorqueue.clear();
`
Interfaces
A color-transition interface
`
export interface IColor {
r: number,
b: number,
g: number,
a: number
}
export interface IColorTransition extends IColor {
duration: number;
transition: string;
order: number;
}
``