DHT11 Digital Temperature & Humidity Sensor Module – Single-Wire for Arduino, ESP32, STM32

It can detect the humidity and temperature of the surrounding environment.
2. The sensor uses DHT11.
3. Humidity measurement range: 20%-95% (0°C - 50°C range) Humidity measurement error: ±5%
4. Temperature measurement range: 0°C - 50°C Temperature measurement error: ±2°C
5. Working voltage: 3.3V - 5V
6. Output form: Digital output
7. Fixed bolt holes are provided for easy installation
8. Small board PCB size: 3.2cm * 1.4cm
9. Power indicator light (red)
10. Each set weighs approximately 8g 
II. Module Interface Description (3-wire System)
1 VCC  External 3.3V - 5V supply
2 GND  External GND connection
3 DO   Small board switch digital output interface - connected to the IO port of the microcontroller

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