初めてのSphero (node.js)

sphero-hello.js

"use strict";
var sphero = require("sphero");
var orb = sphero("<ポート名>");
orb.connect(listen);
var isRed = false;
function listen() {
  orb.color("green");
  setInterval(function() {
    if (isRed) {
      orb.color("red");
    } else {
      orb.color("green");
    }
    isRed = !isRed;
 }, 1000);
};