Arduino based Smart Switch for Agriculture Irrigation System

The Arduino-based Smart Switch for Agriculture Irrigation System operates as an automated, remotely accessible control hub powered by a sustainable off-grid energy setup. At the heart of the system is an Arduino Uno board, which executes the core control logic and processes input and output signals. Energy management is handled by a 50-watt solar panel connected to a solar charge controller, which safely regulates power delivery to the system. For local status updates and system feedback, a 16x2 LCD display provides real-time visual information directly to the user. Remote connectivity is achieved via a GSM with GPRS SIM800L module, allowing the Arduino to receive external text message commands or wireless signals from a smartphone. When a command is processed, the Arduino triggers a four-channel relay module. Because relays act as electrically operated switches, they allow the low-voltage digital signals from the Arduino to safely control heavy-duty, high-voltage agricultural water pumps and irrigation machinery. The entire circuit is prototyped using a breadboard and connecting wires, and the control software is uploaded to the microcontroller via the Arduino IDE.