public bool DecreaseBrightness()
        {
            int value = int.Parse(BrightnessValue);

            if (value > 0)
            {
                BrightnessValue = (--value).ToString();
                if (!SerialHandler.SendBrightnessValue(value))
                {
                    MessageBox.Show("Connection lost...switching to disconnected mode");
                    return(false);
                }
            }
            return(true);
        }