DESIGN AND CONSTRUCTION OF FIRE DETECTION ALARM BASED ON ARDUINO UNO

Abstract

Fire is a disaster that can cause significant losses, both in terms of material and human lives. Therefore, an early detection system is needed to provide quick warnings and reduce the negative impact. This research aims to design and develop a fire detection alarm system based on Arduino Uno, integrating a flame sensor and an MQ-2 gas sensor. The system is designed to detect the presence of fire through a flame sensor, which operates based on the infrared light intensity emitted by flames. Additionally, the MQ-2 gas sensor is used to detect flammable gases, such as smoke, which often appear in the early stages of a fire. The Arduino Uno functions as a microcontroller that processes data from both sensors to activate an alarm consisting of sound and LED indicators when a fire is detected. System testing was conducted under various conditions to ensure accuracy and reliability in detection. The results show that the system can detect fire and gas presence quickly and effectively provide warnings. With relatively affordable costs, this system is expected to be a practical solution for fire prevention.