text: var five = require("../lib/johnny-five");
  var board = new five.Board();
  
  board.on("ready", function() {
  
    // Plug the Rotary Angle sensor module
    // into the Grove Shield's A0 jack
    var rotary = new five.Sensor("A0");
  
    // Plug the Servo module
    // into the Grove Shield's D5 jack
    var servo = new five.Servo(5);
  
    // Set scaling of the Rotary angle
    // sensor's output to 0-180° (8-bit)
    // range. Set the servo angle in
    // degrees corresponding to the
    // value of the sensor
    rotary.scale(0, 180).on("change", function() {
      servo.to(this.value);
    });
  });
  
  // @markdown
  // For this program, you'll need:
  //
  // ![Grove Base Shield v2](http://www.seeedstudio.com/depot/images/product/base%20shield%20V2_01.jpg)
  //
  // ![Grove - Servo Module](http://www.seeedstudio.com/depot/images/product/GroveServo_01.jpg)
  //
  // ![Grove - Rotary Angle Module](http://www.seeedstudio.com/depot/images/product/rotary.jpg)
  //
  // @markdown
  