public bool Write(string Data)
        {
            try
            {
                if (IsOpen())
                {
                    byte[] bData = System.Text.Encoding.Default.GetBytes(Data);
                    Write(bData);
                    return true;
                }
                else
                {
                    return false;
                }
            }
            catch { return false; }
        }

        public bool Write(byte[] bdata)
        {
            try
            {
                if (IsOpen())
                {
                    serialPort.Write(bdata, 0, bdata.Length);
                    return true;
                }
                else
                {
                    return false;
                }
            }
            catch { return false; }
        }