Gravity: DHT22 Temperature & Humidity Sensor

The Gravity DHT22 is a capacitive humidity sensing digital temperature and humidity module. It contains calibrated digital signal output for temperature and humidity sensing. The sensor employs dedicated digital modules collection technology and high-precision temperature measurement devices connected to a high-performance 8-bit microcontroller. It ensures high reliability, excellent long-term stability, small size, low power consumption, and a signal transmission distance of up to 20 meters. With a standard single-bus interface, quick system integration is guaranteed. This sensor provides high precision, making it a cost-effective alternative to expensive imported SHT10 sensors.

Note: DHT22 digital temperature and humidity sensor is designed for analog sensor interfaces. The analog port will be used as the digital which will not occupy the original digital port of the Arduino. The lines of the sensor can transform the analog function to digital that can be used on the digital port.

DHT22 temperature sensor tutorial:

• ESP32 Arduino: Getting temperature from a DHT22 sensor
• ESP32 Arduino: DHT22 Minimum Sampling Period
• ESP32 Arduino: Getting humidity measurements from a DHT22 sensor
• ESP8266 Arduino Tutorial: Getting temperature and humidity with a DHT22 sensor