C# 蓝牙键盘扫描、链接、读数据 例程

好的，以下是 C# 蓝牙键盘扫描、链接、读数据的例程：

using System;
using System.IO.Ports;
using System.Threading;
using InTheHand.Net.Sockets;
using InTheHand.Net.Bluetooth;

namespace BluetoothKeyboard
{
    class Program
    {
        static void Main(string[] args)
        {
            // 扫描蓝牙设备
            BluetoothClient client = new BluetoothClient();
            BluetoothDeviceInfo[] devices = client.DiscoverDevices();

            Console.WriteLine("找到以下设备：");
            for (int i = 0; i < devices.Length; i++)
            {
                Console.WriteLine(i + 1 + "." + devices[i].DeviceName + " - " + devices[i].DeviceAddress);
            }

            Console.Write("请选择设备：");
            int deviceId = int.Parse(Console.ReadLine()) - 1;
            BluetoothDeviceInfo device = devices[deviceId];

            // 连接蓝牙设备
            BluetoothClient bluetoothClient = new BluetoothClient();
            bluetoothClient.Connect(device.DeviceAddress, BluetoothService.SerialPort);

            Console.WriteLine("已连接设备：" + device.DeviceName);

            // 打开串口
            SerialPort serialPort = new SerialPort("COM1", 9600, Parity.None, 8, StopBits.One);
            serialPort.Open();

            Console.WriteLine("已打开串口：COM1");

            // 读取数据
            while (true)
            {
                // 读取蓝牙数据
                byte[] buffer = new byte[1024];
                bluetoothClient.GetStream().Read(buffer, 0, buffer.Length);

                // 写入串口
                serialPort.Write(buffer, 0, buffer.Length);

                // 显示数据
                Console.Write(Encoding.ASCII.GetString(buffer));
            }
        }
    }
}

需要注意的是，上述代码依赖于 InTheHand.Net 和 InTheHand.Net.Personal 程序集，需要在项目中添加引用。同时，蓝牙设备的地址和串口号需要根据实际情况进行修改。