MissionPlanner.Sikradio.doConnect C# (CSharp) Method

        public bool doConnect(ICommsSerial comPort)
        {
            try
            {
                Console.WriteLine("doConnect");

                var trys = 1;

                // setup a known enviroment
                comPort.Write("ATO\r\n");

                retry:

                // wait
                Sleep(1500, comPort);
                comPort.DiscardInBuffer();
                // send config string
                comPort.Write("+");
                Sleep(200, comPort);
                comPort.Write("+");
                Sleep(200, comPort);
                comPort.Write("+");
                Sleep(1500, comPort);
                // check for config response "OK"
                log.Info("Connect btr " + comPort.BytesToRead + " baud " + comPort.BaudRate);
                // allow time for data/response

                if (comPort.BytesToRead == 0 && trys <= 3)
                {
                    trys++;
                    log.Info("doConnect retry");
                    goto retry;
                }

                var buffer = new byte[20];
                var len = comPort.Read(buffer, 0, buffer.Length);
                var conn = Encoding.ASCII.GetString(buffer, 0, len);
                log.Info("Connect first response " + conn.Replace('\0', ' ') + " " + conn.Length);
                if (conn.Contains("OK"))
                {
                    //return true;
                }
                else
                {
                    // cleanup incase we are already in cmd mode
                    comPort.Write("\r\n");
                }

                doCommand(comPort, "AT&T");

                var version = doCommand(comPort, "ATI");

                log.Info("Connect Version: " + version.Trim() + "\n");

                var regex = new Regex(@"SiK\s+(.*)\s+on\s+(.*)");

                if (regex.IsMatch(version))
                {
                    return true;
                }

                return false;
            }
            catch
            {
                return false;
            }
        }