Electric Imp Robot

imp.js

var five = require('johnny-five'),
    Imp = require("imp-io"),
    keypress = require('keypress'),
    board = new five.Board({
      repl: false,
      debug: false,
      io: new Imp({
        agent: 'FPKHeMBXeuim'
      })
    }),
    stdin = process.stdin,
    moving = false,
    turning = false,
    leftSpeed = 0,
    rightSpeed = 0;

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

board.on('ready', function() {
  var motors = new five.Motors([
        { pins: { pwm: 1, dir: 2 } },
        { pins: { pwm: 8, dir: 9 } }
      ]),
      leftMotor = motors[0],
      rightMotor = motors[1];

  board.pinMode(1, board.MODES.PWM);
  board.pinMode(8, board.MODES.PWM);

  console.log('Ready!');
  stdin.on('keypress', function(chunk, key) {
    if (!key) return;

    if (key.ctrl && key.name == 'c' || key.name == 'q') {
      console.log('Stopping');
      leftMotor.stop();
      rightMotor.stop();
      process.exit();
    }

    switch (key.name) {
      case 'up':
        console.log('forward');
        motors.fwd(255);
        moving = true;
        break;
      case 'down':
        console.log('backward');
        motors.rev(255);
        moving = true;
        break;
      case 'space':
        console.log('stopd');
        motors.stop();
        moving = false;
        leftSpeed = 0;
        rightSpeed = 0;
        break;
      case 'right':
        console.log('right');
        if (moving) {
          motors[0].speed(150);
          motors[1].speed(255);
        } else {
          motors[1].fwd(175);
          motors[0].rev(175);
        }

        break;
      case 'left':
        console.log('left');
        if (moving) {
          motors[1].speed(150);
          motors[0].speed(255);
        } else {
          motors[0].fwd(175);
          motors[1].rev(175);
        }

        break;
      default:
        break;
    }
  });
});