wiggle.js

var five = require('johnny-five')

var board = new five.Board()

board.on('ready', function () {
  var led = five.Led(13)
  var body = new five.Servo(9)
  var head = new five.Servo(10)
  var laser = five.Led(7)

  led.on()

  function wiggle (servo, time) {
    board.wait(time, function () {
      servo.to(0)
      board.wait(time, function () {
        servo.to(10)
        wiggle(servo, time)
      })
    })
  }

  this.repl.inject({
    led: led,
    body: body,
    head: head,
    laser: laser,
    wiggle: wiggle
  })
})