public void listenToSerial()
        {
            Console.WriteLine("start thread");
            while (_continue)
            {
                try
                {
                    string message = port.ReadLine();
                    Console.WriteLine("MESSAGE IS: " + message[0]);
                    // Change color:
                    if (message[0] == '0' || message[0] == '1' || message[0] == '2' || message[0] == '3')
                    {
                        char currColor = message[0];
                        //Console.WriteLine("msg: " + currColor);
                        if (currColor != prevColor)
                        {
                            prevColor = currColor;
                            int colorNum = currColor - '0';
                            drawController.ColorChangeFlag(colorNum);
                            soundController.TriggerColorEffect(colorNum);
                        }
                        //Console.WriteLine(message);
                    }
                    // Change background:
                    else if (message[0] == '5')
                    {
                        TimeSpan timeDiff = DateTime.Now - lastTime;

                        if (timeDiff.TotalMilliseconds > 1000)
                        {
                            drawController.CycleBackgrounds();
                            soundController.TriggerBackgroundEffect();
                            lastTime = DateTime.Now;
                        }
                    }
                }
                catch (Exception e)
                {
                }
            }
        }