johnny-five/eg/joystick-pantilt.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");
var board = new five.Board();

board.on("ready", function() {
  var range = [0, 170];

  // Servo to control panning
  var pan = new five.Servo({
    pin: 9,
    range: range,
    center: true
  });

  // Servo to control tilt
  var tilt = new five.Servo({
    pin: 10,
    range: range,
    center: true
  });

  // Joystick to control pan/tilt
  // Read Analog 0, 1
  // Limit events to every 50ms
  var joystick = new five.Joystick({
    pins: ["A0", "A1"],
    freq: 100
  });


  joystick.on("change", function() {
    tilt.to(five.Fn.scale(this.y, -1, 1, 0, 170));
    pan.to(five.Fn.scale(this.x, -1, 1, 0, 170));
  });
});