stream-based implementation of the openpixelcontrol-protocol. Provides a protocol-parser and a client-implementation.
npm install openpixelcontrol-stream
This will run an openpixelcontrol server on the default port (7890) and send
received data to the rpi-ws281x-native module for output to a strip of
ws2812-leds.
var ParseStream = require('openpixelcontrol-stream').OpcParseStream,
net = require('net'),
ws281x = require('rpi-ws281x-native');
var server = net.createServer(function(conn) {
var parser = new ParseStream({
channel: 1,
dataFormat: ParseStream.DataFormat.UINT32_ARRAY
});
parser.on('setpixelcolors', function(data) {
ws281x.render(data);
});
conn.pipe(parser);
});
ws281x.init(100);
server.listen(7890);A basic client connecting to an openpixelcontrol-server and running an animation there.
var ClientStream = require('openpixelcontrol-stream').OpcClientStream,
net = require('net');
var NUM_LEDS = 100,
OPC_CHANNEL = 0;
var client = new ClientStream();
// connect to openpixelcontrol-server at `192.168.1.42:7890`
var socket = net.createConnection(7890, '192.168.1.42', function() {
client.pipe(socket);
run();
});
function run() {
// create a typed-array for color-data
var data = new Uint32Array(NUM_LEDS);
// setup an animation-loop at 10FPS
setInterval(function () {
// ... update colors in `data` ...
client.setPixelColors(OPC_CHANNEL, data);
}, 100);
}