PC端连接蓝牙指定设备（经典蓝牙）并发送数据

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keer_zu|

楼主 | 2025-5-6 20:20 | 只看该作者回帖奖励

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蓝牙, pc, 发送, DDR, AD, ce

首先找到指定设备名的蓝牙设备，得到设备地址
根据地址连接设备（前提是PC端先配对好）
发送数据

代码如下：

import bluetooth

# 扫描经典蓝牙设备
def scan_devices():
    devices = bluetooth.discover_devices(lookup_names=True)
    print("Found devices:")
    return devices


# 配对设备（需系统支持）
def pair_device(address):
    # Windows 下 PyBluez 无法直接配对，需调用系统功能
    import subprocess
    subprocess.run(["btpair", "-p", address])  # 模拟命令行配对（非实际代码）

# 通过 RFCOMM 连接并发送数据
def send_data(address, port=1):
    print("连接："+address)
    sock = bluetooth.BluetoothSocket(bluetooth.RFCOMM)
    sock.connect((address, port))
    sock.send("Hello from PC!")
    response = sock.recv(1024)
    print(f"Received: {response}")
    sock.close()


if __name__ == "__main__":
    target_name = "ESP32-liuyan"
    target_address = ""
    devices = scan_devices()
    for addr, name in devices:
        print(f"  {name} - {addr}")
        if name == target_name:
            print("找到目标设备")
            target_address = addr
            break

    if target_address == "":
        print("找不到目标设备")
    else:
    # 手动输入目标设备地址
    # target_address = "00:11:22:33:44:55"
        #pair_device(target_address)  # 需配合Windows API
    #    send_data(target_address)
        print("连接："+target_address)
        try:
            sock = bluetooth.BluetoothSocket(bluetooth.RFCOMM)
            sock.settimeout(10)  # 设置超时10秒
            print("尝试连接...")
            sock.connect((target_address, 1))
            print("连接成功！")
    # 发送数据示例
            num = 0
            while num < 100000:
                sock.send("Hello Bluetooth!\n")
                num = num +1
            sock.close()
        except bluetooth.btcommon.BluetoothError as e:
            print(f"连接失败: {e}")
        except Exception as e:
            print(f"其他错误: {e}")

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