internal void openCash() { if (Blueclient.Connected) { //byte[] arrayOfByte = new byte[] { 27, 112, 0, 50, 80 }; byte[] arrayOfByte = HexUtils.HexStringToByte("1B7003250"); Blueclient.Client.Send(arrayOfByte, arrayOfByte.Length, System.Net.Sockets.SocketFlags.None); } }