johnny-five/eg/servo-sweep.js

The JavaScript Robotics and Hardware Programming Framework. Use with: Arduino (all models), Electric Imp, Beagle Bone, Intel Galileo & Edison, Linino One, Pinoccio, Raspberry Pi, Spark Core, TI Launchpad and more!

var five = require("../lib/johnny-five.js"),
  board = new five.Board();

board.on("ready", function() {
  var servo = new five.Servo({
    pin: 10,
    startAt: 90
  });
  var lap = 0;

  servo.sweep().on("sweep:full", function() {
    console.log("lap", ++lap);

    if (lap === 1) {
      this.sweep({
        range: [40, 140],
        step: 10
      });
    }

    if (lap === 2) {
      this.sweep({
        range: [60, 120],
        step: 5
      });
    }

    if (lap === 3) {
      this.sweep({
        range: [80, 100],
        step: 1
      });
    }

    if (lap === 5) {
      process.exit(0);
    }
  });
});