Digital Humidity Digital Component Sensor (DCS) Development Tools

The HTU21D Xplained Pro provides the necessary hardware to interface the HTU21D digital relative humidity and temperature sensor to any system that utilizes Xplained Pro compatible expansion ports configurable for I2C communication. The HTU21D sensor is a selfcontained humidity and temperature sensor that is fully calibrated during manufacture. The sensor can operate from 1.5V to 3.6V, has selectable resolution, low battery detect, and checksum capability. The HTU21D has a low power stand-by mode for power-sensitive applications.

FEATUREs
• 20-pin Xplained Pro compatible connector
• I2C interface
• Xplained Pro Hardware identification Chip
• Atmel Studio 6 Project available for download
• µC C code available for download
• Selectable 8-12 bit resolution for humidity
• Selectable 12-14 bit resolution for temperature

Specifications
• Measures relative humidity from 0% to 100%
• Measures temperature from -40°C to 125°C
• I2C communication
• Fully calibrated
• Fast response time
• Selectable resolution
• Very low power consumption