FABRICATION OF QUADCOPTER FOR AGRICULTURAL SPRAYING

Unmanned aerial vehicles (UAVs) are being used more frequently for agricultural spraying as a result of their effectiveness and precision. This project involved building a quadcopter without sensors, cameras, or GPS for agricultural spraying. The quadcopter was created to rapidly and effectively cover a sizable amount of agricultural land, while also minimizing the usage of pesticides and the impact on the environment. The quadcopter's frame, which was made of lightweight materials to give strength and durability while minimizing the aircraft's overall weight, was used in its construction. The quadcopter's frame was made to accommodate four brushless motors, each of which had a propeller to give lift and movement. Four electronic speed controllers (ESCs) were used to control the motors' rotational speed and direction. The high-capacity lithium-polymer (LiPo) battery used by the quadcopter has sufficient power to run the motors and spraying system continuously. A tank, a pump that pressurized the liquid, and a nozzle that released the pressurized liquid over the crops as a fine mist made up the spraying system. A KK 2.1.5 circuit board served as the foundation for the flight control system, which was wired to the battery, four ESCs, and other components. The quadcopter's circuit board was configured to retain its position and altitude while flying steadily. Additionally, it provided buttons and an LCD panel for the user to use to change flying characteristics including the throttle, pitch, and roll. A handheld radio transmitter that interacted with a quadcopter receiver was used to control the aircraft.