servo.js

'use strict';
// Define the objects you will be working with
var five = require ("johnny-five");
var Shield = require("j5-sparkfun-weather-shield")(five);

// Add the following definition for the Particle plugin for Johnny-Five
var Particle = require("particle-io");

var board = new five.Board({
  io: new Particle({
        token:    '1b67fbedf478e95d045fa7cf08bd9c78b182ab6b',
        deviceId: '1f001f000347353138383138'
  })
});

// The board.on() executes the anonymous function when the 
// board reports back that it is initialized and ready.
board.on("ready", function() {
    console.log("Board connected...");


    var servo1 = new five.Servo({
        pin: 'D1',
        startAt: 0
    });
    var servo2 = new five.Servo({
        pin: 'D2',
        startAt: 0
    });

    var angle = 0;
    var step = 10;
    setInterval(function() {
        angle += step;
        if (angle > 180 || angle < 0) {
            step *= -1;
        }
        console.log('Angle', angle)
        servo1.to(angle);
        servo2.to(angle);

    }, 1000);


});