add example for receiving wled virtual

examples/wled.js

@@ -0,0 +1,30 @@
+// Receive virtual leds over DDP from WLED
+const ddp = require('@jwetzell/ddp');
+
+const dgram = require('dgram');
+
+const socket = dgram.createSocket('udp4');
+socket.bind(4048, '0.0.0.0');
+
+socket.on('message', (msg) => {
+  console.clear();
+  const leds = [];
+
+  const packet = ddp.decode(msg);
+  const ledCount = packet.header.dataLength / (packet.header.dataType.bitsPerPixel / 8) / 3;
+
+  for (let index = 0; index < ledCount; index += 1) {
+    const ledOffset = index * 3;
+
+    const led = {
+      r: packet.data[ledOffset + 0],
+      g: packet.data[ledOffset + 1],
+      b: packet.data[ledOffset + 2],
+    };
+
+    leds.push(led);
+  }
+  leds.forEach((led, index) => {
+    console.log(`led ${index + 1}:\tr=${led.r}\tg=${led.g}\tb=${led.b}`);
+  });
+});