DHT20 Temperature and Humidity Sensor
Overview
The DHT20 is a calibrated digital temperature and humidity sensor that communicates over a standard I2C interface. It is an improved version of the classic DHT11, offering better accuracy and a wider operating voltage range from 2.2V to 5.5V. The sensor provides reliable data with 3 percent RH accuracy and is designed for easy integration into microcontroller-based projects.
Why Choose This Part
The DHT20 features a digital I2C output, which is more robust and easier to interface with modern MCUs than the proprietary one-wire protocol of previous DHT sensors. It offers low power consumption with a typical sleep current of 250uA and maintains excellent long-term stability even in complex environments.
Applications
Getting Started
Connect the sensor to an I2C bus with appropriate pull-up resistors and supply a voltage between 2.2V and 5.5V. Use standard Arduino or Python libraries for DHT20 to parse the digital signals. Ensure the sensor has adequate airflow and is placed away from heat-generating components for accurate readings.
