The HTU21D is a low-cost, easy to use, highly accurate, digital humidity and temperature sensor. This sensor is ideal for environmental sensing and data logging and perfect for a weather stations or humidor control systems. All you need is two lines for I2C communication and youâ€™ll have relative humidity readings and very accurate temperature readings as a bonus!
There are only four pins that need to be hooked up in order to start using this sensor in a project. One for VCC, one for GND, and two data lines for I2C communication. This breakout board has built in 4.7k pull up resistors for I2C communications. If youâ€™re hooking up multiple I2C devices on the same bus, you may want to disable these resistors.
Dimensions: 0.6 x 0.6"
2 x New HTU21D Temperature and Humidity Sensor Module Temperature Sensor Breakout
2PCS Arduino HTU21D Temperature and Humidity Sensor Module Board Breakout