2013 Arduino Class code

blink.js

 var five = require("johnny-five"),
    // or "./lib/johnny-five" when running from the source
    board = new five.Board();

board.on("ready", function() {

  // Create an Led on pin 13 and strobe it on/off
  // Optionally set the speed; defaults to 100ms
  (new five.Led(13)).strobe();

});

button.js

var five = require("johnny-five");

var board = new five.Board();

board.on("ready", function() {

  // Create a new `button` hardware instance.
  var button = new five.Button(8);

  // "down" the button is pressed
  button.on("down", function() {
    console.log("button down!!");
  });

  // "up" the button is released
  button.on("up", function() {
    console.log("button up!!");
  });
});

pot.js

var five = require("johnny-five");
var board = new five.Board();

board.on("ready", function() {

  // Create a new `potentiometer` hardware instance.
  var potentiometer = new five.Sensor({
    pin: "A0",
    freq: 250
  });

  // "read" get the current reading from the potentiometer
  potentiometer.on("read", function() {
    console.log("Value="+this.value + " Raw Value="+this.raw);
  });
});

servo.js

var five = require("johnny-five"),
    board, servo;

board = new five.Board();

board.on("ready", function() {

  // Create a new `servo` hardware instance.
  servo = new five.Servo(10);

  servo.sweep();

  // "move" events fire after a successful move.
  servo.on("move", function( err, degrees ) {
    console.log( "move", degrees );
  });

});

servo_and_pot.js

var five = require("johnny-five");
var board = new five.Board();

board.on("ready", function() {
 
  // Create a new `potentiometer` hardware instance.
  var potentiometer = new five.Sensor({
    pin: "A0",
    freq: 10
  });

  var servo = new five.Servo(10);

  // "read" get the current reading from the potentiometer
  potentiometer.on("read", function() {
    // convert [0,1023] -> [-180,180]
    var deg = (this.value * 360) / 1023 - 180;
    servo.move(deg);
  });

});