nodebot.js

// npm install johnny-five etherport-client keypress

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

var EtherPortClient = require("etherport-client").EtherPortClient;
var board = new five.Board({
  port: new EtherPortClient({
    host: "192.168.252.21",
    port: 3030
  }),
  timeout: 1e5,
  repl: false
});

board.on("ready", function () {
  console.log("READY!");

  var leftWheel = new five.Motor({
    pins: {
      pwm: 15,
      dir: 13
    }
  });


  var rightWheel = new five.Motor({
    pins: {
      pwm: 14,
      dir: 12
    }
  });

  leftWheel.setPWM(15, 0);
  leftWheel.setPin(13, 0);

  rightWheel.setPWM(14, 0);
  rightWheel.setPin(12, 0);

  keypress(process.stdin);
  process.stdin.resume();
  process.stdin.setEncoding('utf8');
  process.stdin.setRawMode(true);
  console.log("press a key");
  process.stdin.on('keypress', function (ch, key) {

    if (!key) { 
      return; 
    }

    if (key.name === 'q') {
      console.log('Quitting');
      leftWheel.setPWM(15, 0);
      leftWheel.setPin(13, 0);
    
      rightWheel.setPWM(14, 0);
      rightWheel.setPin(12, 0);   
      process.exit();
    } else if (key.name === 'right') {
      console.log('Right');
      leftWheel.setPin(13, 0);
      leftWheel.setPWM(15, 0);

      rightWheel.setPWM(14, 2000);
      rightWheel.setPin(12, 0);
    } else if (key.name === 'left') {
      console.log('Left');
      leftWheel.setPWM(15, 2000);
      leftWheel.setPin(13, 0);

      rightWheel.setPWM(14, 0);
      rightWheel.setPin(12, 0);
    } else if (key.name === 'up') {
      console.log('Forward');
      leftWheel.setPWM(15, 2000);
      leftWheel.setPin(13, 0);

      rightWheel.setPWM(14, 2000);
      rightWheel.setPin(12, 0);
    } else if (key.name === 'down') {
      console.log('Backward');
      leftWheel.setPWM(15, 0);
      leftWheel.setPin(13, 1)

      rightWheel.setPWM(14, 0);
      rightWheel.setPin(12, 1);
    } else if (key.name === 'space') {
      console.log('Stopping');
      leftWheel.setPin(13, 0);
      leftWheel.setPWM(15, 0);

      rightWheel.setPin(12, 0);
      rightWheel.setPWM(14, 0);
    }

  });
});