Python Can'；t连接到本地主机（8888）上的pigpio Can'；不要创建回调线程。可能有太多同时的pigpio连接

已将DHT11连接到Rpi4

VCC--引脚1

datapin--gpio4

接地针脚--针脚6

它工作得很好，但是在给出了几次结果之后，我得到了这个错误。 pigpio新手请帮我找出问题所在

import time
from pigpio_dht import DHT11, DHT22
while True:
        gpio = 4 # BCM Numbering

        sensor = DHT11(gpio)
#sensor = DHT22(gpio)

        result = sensor.read()

        temperature=([value for value in result.values()][0])
        print(temperature)

        humidity=([value for value in result.values()][2])
        print(humidity)
        time.sleep(10)

输出：

28
46

28
46

28
46

28
46

28
46

然后我得到以下结果：

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Can't connect to pigpio at localhost(8888)

Can't create callback thread.
Perhaps too many simultaneous pigpio connections.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Traceback (most recent call last):
  File "dht8.py", line 9, in <module>
    sensor = DHT11(gpio)
  File "/home/pi/.local/lib/python3.7/site-packages/pigpio_dht/dht11.py", line 24, in __init__
    super(DHT11, self).__init__(gpio, pi=pi, timeout_secs=timeout_secs, use_internal_pullup=True, max_read_rate_secs=1, datum_byte_count=1)
  File "/home/pi/.local/lib/python3.7/site-packages/pigpio_dht/dhtxx.py", line 47, in __init__
    self._pi.set_pull_up_down(gpio, pigpio.PUD_UP)
  File "/usr/lib/python3/dist-packages/pigpio.py", line 1385, in set_pull_up_down
    return _u2i(_pigpio_command(self.sl, _PI_CMD_PUD, gpio, pud))
  File "/usr/lib/python3/dist-packages/pigpio.py", line 993, in _pigpio_command
    sl.s.send(struct.pack('IIII', cmd, p1, p2, 0))
AttributeError: 'NoneType' object has no attribute 'send'

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
无法连接到本地主机上的pigpio（8888）
无法创建回调线程。
可能有太多同时的pigpio连接。
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
回溯（最近一次呼叫最后一次）：
文件“dht8.py”，第9行，在
传感器=DHT11（gpio）
文件“/home/pi/.local/lib/python3.7/site packages/pigpio_dht/dht11.py”，第24行，在u_init中__
super（DHT11，self）。\uuuuu init\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu（gpio，pi=pi，timeout\u secs=timeout\u secs，use\u internal\u pullup=True，max\u read\u secs=
文件“/home/pi/.local/lib/python3.7/site packages/pigpio_dht/dhtxx.py”，第47行，在u_init中__
自我设置向上拉向下（gpio、pigpio、PUD向上）
文件“/usr/lib/python3/dist packages/pigpio.py”，第1385行，在set\u pull\u up\u down中
返回u2i（_pigpio_命令（self.sl，_PI_CMD_PUD，gpio，PUD））
文件“/usr/lib/python3/dist packages/pigpio.py”，第993行，在_pigpio_命令中
sl.s.send（结构包（'IIII'，命令，p1，p2，0））
AttributeError:“非类型”对象没有属性“发送”

---

提前感谢

您正在

while

循环中设置设备，因此它会创建同一设备的多个实例，从而产生错误代码

Can't create callback thread.
Perhaps too many simultaneous pigpio connections.

您需要创建一个设备实例并从传感器中长期读取信息。类似这样的方法会奏效：

import time
from pigpio_dht import DHT11, DHT22

gpio = 4 # BCM Numbering

sensor = DHT11(gpio)
   
while True:
       
        result = sensor.read()

        temperature=([value for value in result.values()][0])
        print(temperature)

        humidity=([value for value in result.values()][2])
        print(humidity)
        time.sleep(10)

---

您必须在while循环之外进行设置，因为它会创建一个新的连接实例。将您的

gpio=4#BCM编号

和

sensor=DHT11（gpio）

移动到while之外loop@BijayRegmi是的..你的权利..现在起作用了..谢谢你为将来寻找这个的人创造了一个答案