Reference
Last revision 2025/12/20
The DHT22 sensor features capacitive sensing and precise temperature measurement, utilizing an 8-bit microcontroller for effective analog-to-digital transformation.
Principle
The sensor includes a capacitive sensor wet components and a high-precision temperature measurement devices, and connected with a high-performance 8-bit microcontroller.
Other Supplementary Information
Caution: 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 which can transform the analog function to digital that can be use on digital port.
NOTE: The line of the DHT22 sensor module is analog--digital
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