The Waveshare DHT22 is a calibrated digital sensor module designed for monitoring ambient temperature and humidity. It uses the DHT22 (AM2302) chip to deliver reliable readings through a simple single-wire interface.
In practical applications, this sensor suits projects like building a weather station or developing a humidity controller. Connect it to a microcontroller for real-time data collection, helping users track environmental conditions accurately in homes, greenhouses, or industrial settings.
- Measures temperature from -40°C to 80°C with 0.1°C resolution and +/-0.5°C accuracy.
- Detects humidity from 0% to 99.9%RH with 0.1%RH resolution and +/-2%RH accuracy at 25°C.
- Operates on a voltage range of 3.3V to 5.5V, ensuring compatibility with common development boards like Arduino.
- Features a straightforward three-pin connection: VCC, GND, and DOUT for easy integration.
- Provides higher precision and wider range compared to basic sensors, making it suitable for detailed monitoring tasks.
- Supports various uses, such as in test and detection devices for environmental analysis.
This sensor fits well for hobbyists, educators, and engineers working on IoT or automation projects where precise environmental data is essential.
