The Design a Real-Time Fire Alarm Prototype Based on Arduino IDE With Telegram Notifications

Abstract

Fire is a disaster that can cause significant losses, both in terms of material and human safety. An early detection system
is a crucial solution to minimize its impact. This research aims to design and build an Arduino IDE-based fire alarm prototype capable of providing real-time notifications via the Telegram application. This system uses a NodeMCU ESP8266 microcontroller integrated with MQ-2, MQ-8, MQ-9, and DHT11 sensors to detect smoke, hazardous gases,
and high temperatures. The prototype is designed with local indicators such as a buzzer, LED, and LCD, as well as remote notification via a Telegram bot. The method used is a prototype model that includes needs identification, design, construction, testing, and evaluation. Test results show that the system is capable of detecting LPG, hydrogen, smoke, and temperature increases with good accuracy. Notifications can be sent to Telegram within a short time after the sensor
detects a dangerous condition. This system is suitable for implementation as a learning tool in the laboratory and as a small-scale fire early warning system.