Temperature & Humidity Sensor Module (AHT21B)

Key Features

• Temperature and Humidity Measurement: Measures temperature in the range of -40°C to +80°C, with an accuracy of ±0.3°C. Measures relative humidity from 0% to 100% RH, with an accuracy of ±2% RH. Offers fast, stable, and accurate measurements, making it suitable for a wide range of applications. I2C Communication: Uses I2C (Inter-Integrated Circuit) for data transmission, which makes the sensor easy to interface with microcontrollers. The digital output eliminates the need for complex analog-to-digital conversion and simplifies the overall design. Low Power Consumption: The AHT21B operates with low power consumption, typically around 0.6 mA during normal operation, which makes it ideal for battery-powered projects and low-energy applications. Fast Response Time: The sensor provides rapid response times, with a typical humidity measurement time of about 100 ms and a temperature measurement time of about 60 ms, allowing for quick updates in real-time applications. High Stability and Long-Term Reliability: The sensor is designed for high stability and long-term reliability, reducing the need for frequent recalibration and providing consistent performance over time. Compact Design: The AHT21B sensor is small and compact, making it suitable for a wide variety of applications, including weather stations, HVAC systems, and IoT devices.