HTU21D Temperature & Humidity Sensor Module - I2C Interface
The HTU21D Temperature & Humidity Sensor Module is a high-precision digital sensor providing accurate environmental monitoring via I2C communication, compatible with 3.3V microcontrollers like Arduino, Raspberry Pi, ESP32, and STM32.
Features
- High-accuracy digital humidity (±2% RH) and temperature (±0.3°C) sensing.
- Ultra-low power consumption of 2.7 µW, ideal for battery-powered IoT applications.
- Standard I2C interface with built-in 4.7k pull-up resistors for easy integration.
- Wide operating range from -40°C to +105°C and 0-100% RH.
- Compact 16mm x 16mm PCB module with unsoldered headers for flexible mounting.
Out of stock
The HTU21D sensor module integrates a MEMS-based capacitive humidity sensor and a band-gap temperature sensor, delivering calibrated digital outputs via a dedicated ASIC. The sensor’s robust silicon-based construction ensures long-term stability with minimal drift, rated at -0.5% RH per year.
Communication is handled through a standard I2C bus, supporting clock stretching and multiple device addresses. The module’s fast measurement time of up to 50 ms enables real-time environmental monitoring for dynamic control systems. While the sensing element is protected, the PCB is not waterproof; for high-humidity or condensing environments, external sealing is recommended.
Additional Information
| Weight | 0.005 kg |
|---|---|
| Dimensions | 1.6 × 1.6 cm |
