DHT22

SMART SOIL MOISTURE MONITORING FOR IoT-CONTROLLED AUTOMATIC PLANT IRRIGATION

The article presents the process of development and research of an IoT-based automated plant irrigation system, which relies on measuring soil moisture levels. As the main module, the ESP32 DevKit v1 microcontroller was used, providing wireless data transmission via Wi-Fi. The device is connected to digital air temperature and humidity sensors DHT11 and DS18B20, as well as a capacitive soil moisture sensor. To implement water supply, a 5 V pump with transistor control is applied.