JavaScript simulation of WS281
JavaScript simulation of WS2812 LED strips commonly used with Arduino
DemoThere is a live demo available here:
http://dougalcampbell.github.io/LEDStrip/
Usage examplevar container = $('.mylights')[0]; // Container DIV in the page
var colors = [ // blue gradient
[0,0,50],
[0,0,100],
[0,0,150],
[0,0,200],
[0,0,250]
];
var size = colors.length;
var strip = LEDstrip(container, size) // Initialize
.setcolors(colors) // chain commands
.send();
colors.forEach(function(val,idx){ // fiddle with colors
colors[idx][0] = colors[4-idx][2];
colors[idx][1] = (colors[idx][0] + colors[idx][2]) >> 1; // g = (r + b) / 2
});
strip.buffer = colors; // set the color buffer directly
strip.send();
// assume that animate() is a function that manipulates strip.buffer[]...
var rAF_id = requestAnimationFrame(animate);
var i = 0;
function animate() {
rAF_id = requestAnimationFrame(animate);
if (i == size) i = 0; // loop around the array
/* generate random rgb values */
var r = Math.floor(Math.random() * 255);
var g = Math.floor(Math.random() * 255);
var b = Math.floor(Math.random() * 255);
strip.buffer[i++] = [r, g, b];
strip.send();
}
Want to help?
If you find a bug, want to add a feature or new lighting driver, please feel free to contribute! Pull requests welcome!
TODO Add controls to demo for number of pixels and run speed Add Adafruit NeoPixel library compatibility Add simple 2D matrix support MOAR LIGHTING ALGORITHMS!版权声明：
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