bot.js where I started to implement a list of currently pressed keys

bot.js

var five = require("johnny-five");
var Particle = require("particle-io");
var keydownup = require("keyupdown");

// Store process.stdin to a local variable
var stdin = process.stdin;

// Store keys currently pressed
var pressed = {};

// Init the keydown and keyup events
keydownup(stdin);

var board = new five.Board({
  io: new Particle({
    token: '7ae40abd0f7c272888ca95b6740667febd1a29c8',
    deviceName: 'cat_mountain'
  })
});

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

  var rightWheel = new five.Motor({
    pins: { pwm: "D0", dir: "D4" },
    invertPWM: true
  });

  var leftWheel = new five.Motor({
    pins: { pwm: "D1", dir: "D5" },
    invertPWM: true
  });

  var speed = 255;

  function reverse() {
    leftWheel.rev(speed);
    rightWheel.rev(speed);
  }

  function forward() {
    leftWheel.fwd(speed);
    rightWheel.fwd(speed);
  }

  function stop() {
    leftWheel.stop();
    rightWheel.stop();
  }

  function left() {
    if ( movingForward() ) {
        leftWheel.fwd(speed * 0.75);
    }

    leftWheel.rev(speed);
    rightWheel.fwd(speed);
  }

  function right() {
    leftWheel.fwd(speed);
    rightWheel.rev(speed);
  }

  function exit() {
    leftWheel.rev(0);
    rightWheel.rev(0);
    setTimeout(process.exit, 1000);
  }

  function movingForward() {
    // Check if we're already moving
    if (leftWheel.isOn && leftWheel.direction.value && rightWheel.isOn && rightWheel.direction.value) {
        return true;
    }

    return false;
  }

  function debug() {
    console.log(movingForward() ? true : false);
  }

  var keyMap = {
    'up': forward,
    'down': reverse,
    'left': left,
    'right': right,
    'space': stop,
    'q': exit,
    'd': debug,
    'c': console.clear
  };

  stdin.setRawMode(true);
  stdin.resume();

  stdin.on("keydown", function(chunk, key) {
      if (!key || !keyMap[key.name]) return;

      // Add pressed key to list
      pressed[key.name] = true;

      console.log(pressed);

      keyMap[key.name]();
  });

  // Stop when no keys are being pressed
  stdin.on("keyup", function(chunk, key) {
    // Remove key from list
    delete(pressed[key.name]);

    console.log(pressed);

    // Check if there are any keys currently pressed
    if ( ! pressed.length ) {
        stop();
    }
  });

  // process.on('SIGINT', function() {
  //   console.log('STOPPING');
  //   stop();
  // });
});