Description

The HTU21D-F Temperature & Humidity Sensor has 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.

HTU21D Temperature & Humidity Sensor

• Power Supply: 1.5V-3.6V
• Humidity measuring range: 0-100% RH
• Temperature range: -40 -105 degree
• Maximum power consumption: 2.7uW
• Communication: I2C
• Humidity accuracy range (10% RH to 95% RH): HTU21D ± 2% RH
• Humidity Hysteresis: ± 1% RH
• Measurement time: 50ms
• The annual shift: -0.5% RH / year
• Response time: 5 s