Product Description
Product Description
The DFRobot Gravity: DHT20 Temperature & Humidity Sensor for Arduino is a temperature and humidity sensor module based on the DHT20 with digital I2C output. The module is designed for 3.3 V to 5.5 V microcontroller systems and connects through the included Gravity-4Pin I2C Sensor Connector.
The DHT20 integrates a dedicated ASIC, a MEMS capacitive humidity sensing element, and a standard on-chip temperature element. According to the manufacturer, the sensor is factory calibrated and designed for low power consumption, stable readings, fast response, and improved resistance to interference. Compared with older basic sensor generations, the module provides a wider temperature and humidity measurement range and outputs data digitally at I2C address 0x38.
Technical Features
- Temperature and humidity sensor module with DHT20 sensor IC
- Digital interface: I2C
- Default I2C address: 0x38
- Supply voltage: 3.3 V to 5.5 V DC
- Operating current: less than 1 mA
- Temperature measurement range: -40 to +80 °C, accuracy ±0.5 °C
- Humidity measurement range: 0 to 100 %RH, accuracy ±3 %RH at 25 °C
- Resolution: 0.01 °C and 0.024 %RH
- Board dimensions: 22 × 33 mm
- Mounting hole: 3.1 mm inner diameter, 6.0 mm outer diameter
Application Areas
The module is suitable for general temperature and humidity measurement in embedded systems, data loggers, and microcontroller projects. The I2C interface supports straightforward integration into controllers and prototype setups.
Typical applications include HVAC systems, weather stations, home appliances, environmental monitoring, vehicle-adjacent measurement tasks, and other temperature and humidity detection systems requiring a digital sensor interface.
What's Included
- Temperature and Humidity Sensor x1
- Gravity-4Pin I2C Sensor Connector (30cm) x1
