universal-analytics.js

var ua = require("universal-analytics");
var j5 = require("johnny-five");

var visitor = ua("UA-XXXX-XX");
var arduino = new j5.Board({
  repl: false
});

arduino.on("ready", function () {
  var btn = new j5.Button(2);

  btn.on("up", function () {
    console.log("event sent");

    visitor.event("arduino", "click").send();
  });
});