blink.js

"use strict";

var Cylon = require("cylon");

Cylon.robot({
  connections: {
    mqtt: { adaptor: "mqtt", host: "mqtt://localhost:1883" },
    firmata: { adaptor: "firmata", port: "/dev/ttyACM0" }
  },

  devices: {
    toggle: { driver: "mqtt", topic: "toggle", connection: "mqtt" },
    led: { driver: "led", pin: "13", connection: "firmata" },
  },

  work: function(my) {
    my.toggle.on("message", function(data) {
      console.log("Message on 'toggle': " + data);
      my.led.toggle();
    });

    every((1).second(), function() {
      console.log("Toggling LED.");
      my.toggle.publish("toggle");
    });
  }
}).start();