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我已经使用 esp32 在 bluepy library 的帮助下使用 BLE 将传感器数据发送到 raspberry pi。在此，我收到与设备断开连接的错误。任何人都可以为我提供帮助，为什么我会收到错误。

这是我的树莓派python代码：

import binascii
import struct
import time
from bluepy.btle import UUID, Peripheral

temperature_uuid = UUID(6E400003-B5A3-F393-E0A9-E50E24DCCA9E)

p = Peripheral("24:0A:C4:02:D1:DA", "public")

try:
    ch = p.getCharacteristics(uuid=temp_uuid)[0]
    while 1:
        val = binascii.b2a_hex(ch.read())
        print str(val)
        time.sleep(1)

finally:
    p.disconnect()

错误看起来像：

Traceback (most recent call last):
File "ble_test.py", line 9, in <module>
   p = Peripheral("24:0A:C4:83:14:B6", "public")
   File "/home/pi/.local/lib/python2.7/site-packages/bluepy/btle.py", 
   line 353, in __init__
   self._connect(deviceAddr, addrType, iface)
   File "/home/pi/.local/lib/python2.7/site-packages/bluepy/btle.py", 
   line 402, in _connect
   "Failed to connect to peripheral %s, addr type: %s" % (addr, 
   addrType))
   bluepy.btle.BTLEException: Failed to connect to peripheral 
   24:0A:C4:83:14:B6, addr type: public
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