This document presents a smart irrigation system that uses sensors to monitor soil moisture, temperature, and humidity wirelessly. It then sends the sensor data via GSM module to control watering. The system aims to reduce labor, conserve water, and allow real-time monitoring for better crop yields. Key components include soil moisture, temperature, and PIR sensors; Arduino and Raspberry Pi microcontrollers; and a GSM module to send alerts. Together, this smart irrigation system optimizes water usage for sustainable agriculture.