DHT20 - AHT20 Pin Module - I2C Temperature and Humidity Sensor
All prices are VAT included
The DHT20 is a nice but inexpensive temperature and humidity sensor from the same folks that brought us the DHT22 .
This little sensor looks an awful lot like the popular DHT11/DHT22 temperature and humidity sensors, but unlike classic DHT sensors, it has an I²C interface! That's right, you do not need to use a bit-bang timing-specific protocol to talk to the DHT20, it uses plain-old-I²C. And, you can power it with anything from 2.5V to 5.5V so it's good with 3V or 5V microcontrollers. Whew, that makes things a little easier, doesn't it?
Inside is the AHT20 . You can take sensor readings as often as you like, and it uses standard I2C so its super easy to use with any Arduino or Linux/Raspberry Pi board.
Pin order from Left to Right is: Power, SDA, Ground, SCL
This sensor has a typical accuracy of ±2% relative humidity, and ±0.3 °C at 20-80% RH and 20-60 °C. There is only one I2C address so it's not a good option when you need multiple humidity sensors.
That said, for makers and IoT projects? You can't beat the simplicity and price! And we've got ready-to-go working Arduino and CircuitPython code to use it. Check out our detailed guide for library code, datasheet, and more
Each order comes with one DHT20 pin sensor module with built-in pullups. You just provide any microcontroller that can run our Arduino or CircuitPython library.
