Project explains how to connect DHT11 temperature and humidity sensor to microcontrollers.
Project depends on external Arduino libraries
- Microcontroller (Arduino Uno, WeMos D1 Mini etc.)
- DHT11 temperature and humidity sensor
- 10 kOhm pull-up resistor
DHT11 pinouts are described as follows
A 10 kOhm pull-up resistor is required to keep the data line high and in order to enable the communication between the sensor and the microcontroller.
| Microcontroller | DHT11 |
|---|---|
| 5V | (1) Vcc |
| D2 | (2) Data |
| - | (3) - |
| GND | (4) GND |
Circuit examples are provided for following microcontrollers:
- Arduino Uno
- WeMos D1 Mini
- WeMos D1 R1