The hardware is consists of an Arduino microcontroller (here an Arduino Uno R3) and a pre-wired soil moisture sensor module. The soil moisture sensor module , built around the LM393 comparator, gives ...

Circuit Diagram of the ESP32 Smart Irrigation System Circuit diagram for this IoT Smart Irrigation System is given below. Connect the soil moisture sensor to D35 pin of ESP32, water level sensor to ...

The first circuit is an analog sensor circuit. It uses soil moisture sensor and LEDs and sound generator to indicate the level of moisture in the soil. the blue LED and the sound generator turn on ...

Rain sensor is used to provide rain delay function to prevent overwatering after rain. Flow sensor keep a check on the amount of water flowing out, this data is used to optimize the watering schedule ...

The circuit is based on PIC microcontroller and also a soil moisture sensor. An auto irrigation system which measures the moisture of the soil and automatically turns on or off the water supply system ...