Fire alarm

The"Electro-Sentinel" is a smart fire alarm circuit built on an Arduino board. It uses key components like the MQ-2 smoke sensor, LM35 temperature sensor, and flame detector for accurate multi-source fire detection. When thresholds are exceeded, it activates outputs like a buzzer, LED, and relay to trigger suppression systems. This prototype serves as the core behavioral and electronic foundation for a future autonomous firefighting robot.