我通过pycahrm的bleak库和蓝牙设备绑定，为什么句柄是对的显示找不到该句柄呢，而且找不到该句柄后就无法将PIN码写入特征值

Question

请教python和蓝牙相关！
我通过pycahrm的bleak库和蓝牙设备绑定，为什么句柄是对的显示找不到该句柄呢，而且找不到该句柄后就无法将PIN码写入特征值；这是什么原因啊，有没有懂得教教我。代码在下面：

遇到的现象和发生背景，请写出第一个错误信息

import asyncio
from bleak import BleakScanner, BleakClient

target_device_name = "F038051J 0181"
target_device_address = None

# 自定义扫描回调函数，在发现设备时进行匹配
def scan_callback(device, advertisement_data):
    global target_device_address

        target_device_address = device.address

async def scan_devices():
    scanner = BleakScanner()
    scanner.register_detection_callback(scan_callback)
    await scanner.start()
    await asyncio.sleep(10)  # 扫描时间（秒）
    await scanner.stop()

async def main():
    await scan_devices()

    if target_device_address:
        print("找到血糖测试仪设备，名称:", target_device_name, "地址:", target_device_address)

        async with BleakClient(target_device_address) as client:
            service_uuid = "0000fff0-0000-1000-8000-00805f9b34fb"
            characteristic_uuid = "0000fff1-0000-1000-8000-00805f9b34fb"
            descriptor_uuid = "00002902-0000-1000-8000-00805f9b34fb"
            # 写入句柄为46的描述符

            descriptor_handle_1 = 46
            descriptor_handle = 44
            descriptor_value_1 = bytearray([0x01, 0x00])
            descriptor_value = bytearray([0x01, 0x01])


            await client.write_gatt_descriptor(descriptor_handle_1, descriptor_value_1)
            await client.write_gatt_descriptor(descriptor_handle, descriptor_value)

            # 特征句柄
            await asyncio.sleep(2)
            # 执行写操作
            # 输入PIN码
            pin_code = input("请输入PIN码: ")
            # 要写入的PIN码数据
            pin_data = bytearray(pin_code.encode())
            await client.write_gatt_char(characteristic_uuid, bytearray(pin_code.encode()))

    else:
        print("未找到血糖测试仪设备:", target_device_name)

loop = asyncio.get_event_loop()
loop.run_until_complete(main())

```python

运行结果及详细报错内容

找到血糖测试仪设备，名称: F038051J 0181 地址: F8:8A:5E:9E:A3:69
Traceback (most recent call last):
File "D:\python_QT\BLE_BOND.py", line 54, in
loop.run_until_complete(main())
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python311\Lib\asyncio\base_events.py", line 653, in run_until_complete
return future.result()
^^^^^^^^^^^^^^^
File "D:\python_QT\BLE_BOND.py", line 38, in main
await client.write_gatt_descriptor(descriptor_handle_1, descriptor_value_1)
File "D:\python_QT\Lib\site-packages\bleak_init_.py", line 763, in write_gatt_descriptor
await self._backend.write_gatt_descriptor(handle, data)
File "D:\python_QT\Lib\site-packages\bleak\backends\winrt\client.py", line 900, in write_gatt_descriptor
_ensure_success(
File "D:\python_QT\Lib\site-packages\bleak\backends\winrt\client.py", line 115, in _ensure_success
raise BleakError(
bleak.exc.BleakError: Could not write value bytearray(b'\x01\x00') to descriptor 002E: Protocol Error 0x05: Insufficient Authentication

```报错内容是这些

我的解答思路和尝试过的方法，不写自己思路的，回答率下降 60%

我想要达到的结果，如果你需要快速回答，请尝试 “付费悬赏”

Answer 1

• 你可以看下这个问题的回答https://ask.csdn.net/questions/7796861