详细说一下使用的工具、源码、命令和操作步骤看看

一开始我用的这个库来测DHT11温湿度
import Adafruit_DHT
import time

makerobo_pin = 17 # DHT11 温湿度传感器管脚定义

# GPIO口定义
def makerobo_setup():
global sensor
sensor = Adafruit_DHT.DHT11

# 循环函数
def loop():
humidity, temperature = Adafruit_DHT.read_retry(sensor, makerobo_pin)
while True:
if humidity is not None and temperature is not None:
print('Temp={‌0:0.1f}*C Humidity={‌1:0.1f}%'.format(temperature, humidity))
else:
print('Failed to get reading. Try again!')
time.sleep(1) # 延时1s

def destroy():
GPIO.cleanup() # 释放资源

# 程序入口
if __name__ == '__main__':
makerobo_setup()
try:
loop()
except KeyboardInterrupt: # 当按下Ctrl+C时，将执行destroy()子程序。
destroy()
但是试了几天 一直不行，出现
Traceback (most recent call last):
File "/home/pi/CLBDEMO/27_humiture/python/27_humiture.py", line 28, in <module>
loop()
File "/home/pi/CLBDEMO/27_humiture/python/27_humiture.py", line 13, in loop
humidity, temperature = Adafruit_DHT.read_retry(sensor, makerobo_pin)
File "/usr/local/lib/python3.7/dist-packages/Adafruit_DHT-1.4.0-py3.7-linux-armv7l.egg/Adafruit_DHT/common.py";, line 94, in read_retry
humidity, temperature = read(sensor, pin, platform)
File "/usr/local/lib/python3.7/dist-packages/Adafruit_DHT-1.4.0-py3.7-linux-armv7l.egg/Adafruit_DHT/common.py";, line 80, in read
platform = get_platform()
File "/usr/local/lib/python3.7/dist-packages/Adafruit_DHT-1.4.0-py3.7-linux-armv7l.egg/Adafruit_DHT/common.py";, line 60, in get_platform
from . import Beaglebone_Black
File "/usr/local/lib/python3.7/dist-packages/Adafruit_DHT-1.4.0-py3.7-linux-armv7l.egg/Adafruit_DHT/Beaglebone_Black.py";, line 24, in <module>
from . import Beaglebone_Black_Driver as driver
ImportError: cannot import name 'Beaglebone_Black_Driver' from 'Adafruit_DHT' (/usr/local/lib/python3.7/dist-packages/Adafruit_DHT-1.4.0-py3.7-linux-armv7l.egg/Adafruit_DHT/__init__.py)

最后在网上了解到CircuitPython库也可以测DHT11温湿度，但出现一点小问题，这个文件每次开机运行的第一次能运行成功，但是停止再运行时就会出现Unable to set line 18 to input 的错误；
参照https://learn.adafruit.com/dht-humidity-sensing-on-raspberry-pi-with-gdocs-logging/python-setup
代码：
import time
import board
import adafruit_dht

# Initial the dht device, with data pin connected to:
dhtDevice = adafruit_dht.DHT11(board.D18)

# you can pass DHT22 use_pulseio=False if you wouldn't like to use pulseio.
# This may be necessary on a Linux single board computer like the Raspberry Pi,
# but it will not work in CircuitPython.
# dhtDevice = adafruit_dht.DHT22(board.D18, use_pulseio=False)

while True:
try:
# Print the values to the serial port
temperature_c = dhtDevice.temperature
temperature_f = temperature_c * (9 / 5) + 32
humidity = dhtDevice.humidity
print(
"Temp: {‌:.1f} F / {‌:.1f} C Humidity: {‌}% ".format(
temperature_f, temperature_c, humidity
)
)

except RuntimeError as error:
# Errors happen fairly often, DHT's are hard to read, just keep going
print(error.args[0])
time.sleep(2.0)
continue
except Exception as error:
dhtDevice.exit()
raise error

time.sleep(2.0)

前面的问题看错误信息和 Beaglebone_Black_Driver 有关
下面这个你试试换一个引脚，如果可以用BCM 编码就尽量用BCM编码，修改下这里
dhtDevice = adafruit_dht.DHT11(board.D18)


因为时序的问题，DHT 11 的读取有一定的失败几率的

还有其他稳定的方法 用DHT11测 温湿度的吗？？？ 求教

@lang 这个我测试下来可以
https://talk.quwj.com/topic/1005

python版本的有吗？？

@lang 有但不准
树莓派实验室搜索 dht11