模块DHT11图片

 模块连接：

代码：

import time
import dht
import network
from umqttsimple import MQTTClient
from machine import Pin,ADC


# 设置温湿度传感器引脚
dht_pin = Pin(4, Pin.IN, Pin.PULL_UP)  # 将传感器引脚连接到ESP32的GPIO 4引脚
# 创建DHT对象
dht_sensor = dht.DHT22(dht_pin)


def ReadTemHum():
       # 读取传感器数据
        dht_sensor.measure()
        # 获取温度和湿度
        temperature = dht_sensor.temperature()
        humidity = dht_sensor.humidity()
        data=[temperature,humidity]
        # 打印温度和湿度
        print("温度：%d，湿度：%d" % (temperature, humidity))
        return data  



while True:
      time.sleep(1)
      ReadTemHum()