The HTU21D is a low-cost, easy to use, highly accurate, digital humidity sensor. All you need is two lines for I2C communication and you’ll have relative humidity readings such as “45.2%” or “23.1%” 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 you’re hooking up multiple I2C devices on the same bus, you may want to disable these resistors.
- Voltage Supply: DC 1.5V—3.6V
- Humidity Range：0—100%RH
- Temperature Range:-40℃—105℃
- Uses the I2C interface
- Typical humidity accuracy of ±2%
- Typical temperature accuracy of ±0.3C
- Time Response: 50ms
HTU21D Module x 1pc