这些使用c#  .net8开发，硬件 香橙派 orangepi 3lts和 hc-04蓝牙

使用场景：可以通过这个功能，手机连接orangepi进行wifi等参数配置

硬件：

1、带USB口的linux开发板orangepi

2、USB 转TTL 中转接蓝牙（HC-04)

某宝上买的蓝牙官方网有调试工具：HC-T串口助手

https://www.hc01.com/downloads

 也有手机端的调试工具

电脑和手机上调试成功后，证明蓝牙是正常使用的

.net 8代码 

using System.IO.Ports;public class UtilsSerial
{public void test(){getDataAndWriteString("/dev/ttyUSB0", 9600, "test");///dev/ttyUSB0  是在香橙派运行上的端口//COM8 是本地window运行的端口}static SerialPort portString = null;/// <summary>/// 串口调用,适用于蓝牙模块hc-04通讯/// </summary>public void getDataAndWriteString(string portName, int baudRate,string content){if (portString == null){portString = new SerialPort(portName);portString.BaudRate = baudRate;portString.DataBits = 8;portString.Parity = Parity.None;portString.StopBits = StopBits.One;portString.Open();portString.DataReceived += getDataAndWriteStringPortDataReceived;Console.WriteLine("Serial Is Open");}if (portString.IsOpen){// 将字符串转换为字节数组并写入串口byte[] dataBytes = Encoding.ASCII.GetBytes(content);portString.Write(dataBytes, 0, dataBytes.Length); }}private void getDataAndWriteStringPortDataReceived(object sender, SerialDataReceivedEventArgs e){var s = sender as SerialPort;if(s.BytesToRead> 0){Thread.Sleep(50);}byte[] recData = new byte[s.BytesToRead];s.Read(recData, 0, recData.Length);var str = Encoding.Default.GetString(recData);Console.WriteLine(str);}
}

USB连接香橙派后 查看串口情况 

ls -l /dev/tty* #查看串口

  可以看到USB0已连接

 在香橙派orangepi 上运行，接收到手机APP调试工具发送的内容