Multi-Purpose Spraying Drone for Agriculture, Sanitation, and Painting

The “Multi-Purpose Spraying Drone for Agriculture, Sanitation, and Painting” presents a scalable, efficient, and autonomous unmanned aerial vehicle (UAV) designed to overcome the challenges posed by traditional manual spraying techniques. Spraying operations in agricultural, sanitation, and industrial domains are often labour-intensive, time-consuming, and hazardous, particularly due to prolonged human exposure to chemicals and the difficulty of achieving uniform application over large or complex areas. This project proposes a drone-based solution that integrates precise GPS-based autonomous navigation, modular spraying capabilities, and real-time remote control to deliver a safe, effective, and versatile alternative. The system is built around a lightweight Carbon Fiber quadcopter frame for stability and durability, powered by high-efficiency brushless DC motors and a high-capacity lithium polymer (Li-Po) battery pack to enable extended flight durations. At its core, the drone is equipped with the DJI Naza-M V2 flight controller, calibrated via DJI NAZAM Assistant v2.40 software, to ensure accurate flight dynamics, reliable system integration, and smooth handling during operations. The navigation system utilizes a Real-Time Kinematic (RTK) GPS module for centimetre-level precision, allowing for pre-programmed waypoint-based routes and uniform spraying across target areas.