C# 读取HEX串口数据并发送给Streamwriter

Question

我正在尝试从以十六进制发送数据的设备读取串行数据，然后将其写入到接收器应用程序的 azure 中继流写入器。设备正在发送这些十六进制值:16 51 1D 65 D4 A6然而我的程序似乎正在阅读:

:

如何让串行端口读取十六进制数据并通过流写入器发送它？我在下面附上了我的代码。感谢您的帮助!

// Read from the serial and write to the hybrid connection.
            var writes = Task.Run(async () => {
               // var reader = Console.In;
                var writer = new StreamWriter(relayConnection) { AutoFlush = true };
                
                
                do
                {
                    // Read serial data from the serial port.
                    string line = sp.ReadExisting();
                    // Write the line to the hybrid connection (Azure Relay)
                    if(line.ToString() != "")
                    { 
                        await writer.WriteLineAsync(line);

                    }

                    //cancel connection and break loop
                    if (Main.disconnect == true)
                    {
                        break;
                    }

                }
                while (true);
            });

Answer 1

您可以将其读取为字节数组而不是文本:

int length = sp.BytesToRead;
byte[] buf = new byte[length];

sp.Read(buf, 0, length);
System.Diagnostics.Debug.WriteLine("Received Data:" + buf);