Sensor
DHT22 Temperature and Humidity Sensor
The DHT22 is a digital sensor that measures both temperature and humidity in the surrounding air. It's a popular choice for weather monitoring and environmental sensing projects due to its good accuracy and simple digital output.
Difficulty
Beginner → Advanced
Category
Electronics
How it works
How this sensor works
The DHT22 contains a humidity sensing component and a thermistor (temperature sensor) inside a single package. It converts the readings into a digital signal and sends the data over a single wire to the microcontroller, which can then read the temperature and humidity values.
Applications
Common use cases
Required
Components needed
Projects
Related projects
Build something with this sensor.
Reading Temperature and Humidity with DHT22 on Raspberry Pi Pico
Learn how to read temperature and humidity from a DHT22 sensor using a Raspberry Pi Pico. This proje...
View projectReading Temperature and Humidity with DHT22 on ESP32
Learn how to read temperature and humidity from a DHT22 sensor using an ESP32 and Arduino code. This...
View project