Abstract: Fire accidents pose a serious threat to human life, property, and the environment, especially in hazardous or inaccessible areas where manual firefighting becomes difficult and risky. To address this issue, an intelligent fire-fighting robotic system has been developed using an Arduino Mega platform. This project focuses on designing and implementing a multi-functional robot capable of detecting, navigating toward, and extinguishing fire autonomously, while also allowing manual control through Bluetooth communication. The robot is equipped with multiple flame sensors strategically placed around the system to detect fire from different directions. An ultrasonic sensor is integrated to measure distance and avoid obstacles, ensuring safe navigation. Additionally, environmental monitoring is achieved using temperature and smoke sensors, enabling the robot to respond effectively to critical conditions. When fire or abnormal temperature is detected, the system activates a water pump mechanism through a relay and directs a servo-controlled nozzle to spray water over the affected area.

The robot operates in two modes: automatic and manual. In automatic mode, it independently detects fire, navigates toward it, and extinguishes it without human intervention. In manual mode, the robot can be controlled remotely via Bluetooth, allowing the user to maneuver the robot and control the firefighting mechanism. A siren system is also incorporated to provide an audible alert during emergency conditions. The motor driving system is implemented using dual L298N motor drivers, enabling precise movement control such as forward, backward, left, and right navigation. The integration of sensors, actuators, and control logic makes the system efficient, responsive, and reliable in fire detection and suppression tasks. This project demonstrates a cost-effective and efficient solution for fire safety applications, particularly in industrial environments, warehouses, and areas that are dangerous for human intervention. The developed system highlights the potential of robotics and embedded systems in enhancing safety measures and reducing the risks associated with firefighting operations.

Keywords: Fire-fighting robot, Arduino Mega, Autonomous navigation, Flame sensors, Ultrasonic sensor, Water pump system, Servo-controlled nozzle, Bluetooth control, Manual and automatic modes, L298N motor driver.

Downloads: | DOI: 10.17148/IARJSET.2026.13408