Python：如何连接蓝牙设备？(Linux)

Question

我需要所有连接的蓝牙设备到我的电脑。我找到了图书馆，但我无法连接设备简单查询示例：    import bluetooth    nearby_devices = bluetooth.discover_devices(lookup_names=True)    print("Found {} devices.".format(len(nearby_devices)))    for addr, name in nearby_devices:        print("  {} - {}".format(addr, name))

Answer 1

问题中的代码片段正在扫描新设备，而不是报告已连接的设备。

作为如何在 Python3 中实现它的示例：

import pydbus

bus = pydbus.SystemBus()

adapter = bus.get('org.bluez', '/org/bluez/hci0')

mngr = bus.get('org.bluez', '/')

def list_connected_devices():

    mngd_objs = mngr.GetManagedObjects()

    for path in mngd_objs:

        con_state = mngd_objs[path].get('org.bluez.Device1', {}).get('Connected', False)

        if con_state:

            addr = mngd_objs[path].get('org.bluez.Device1', {}).get('Address')

            name = mngd_objs[path].get('org.bluez.Device1', {}).get('Name')

            print(f'Device {name} [{addr}] is connected')

if __name__ == '__main__':

    list_connected_devices()

Answer 2

使用前需要安装依赖

布鲁斯

代码

def get_connected_devices():

    bounded_devices = check_output(['bt-device', '-l']).decode().split("\n")[1:-1]

    connected_devices = list()

    for device in bounded_devices:

        name = device[:device.rfind(' ')]

        #mac_address regex

        regex = '([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})|([0-9a-fA-F]{4}\\.[0-9a-fA-F]{4}\\.[0-9a-fA-F]{4})$'

        mac_address = re.search(regex, device).group(0)

        device_info = check_output(['bt-device', '-i', mac_address]).decode()

        connection_state = device_info[device_info.find('Connected: ') + len('Connected: ')]

        if connection_state == '1':

            connected_devices.append({"name": name, "address": mac_address})

    return connected_devices