Project Overview

This project is an advanced safety solution designed for smart homes to detect potential fire hazards in real time. It utilizes specialized sensors to monitor the environment for smoke or flame presence. Upon detection, the system triggers local safety measures—such as activating an exhaust fan to clear smoke and turning on a light for visibility—while simultaneously sending an alert notification to the user's mobile device. Controlled by a NodeMCU microcontroller, this IoT-based system ensures that homeowners are informed of emergencies immediately, even if they are away from the premises.

Key Advantages

Early Warning: Provides instant alerts to prevent minor accidents from becoming major fires.

Remote Notification: Sends real-time updates to smartphones via Wi-Fi.

Automated Response: Automatically activates fans and lights upon detection.

24/7 Monitoring: Offers continuous oversight of the home environment.

Safety Integration: Enhances overall building security and occupant peace of mind.

Materials Used

NodeMCU (ESP8266)

Smoke/Gas Sensor (MQ series)

Fire/Flame Sensor

Exhaust Fan (DC)

Light Bulb (AC/DC)

Dual Channel Relay Module

SMPS Power Supply

Buzzer

Connecting Wires

Future Work

Future iterations of this system could incorporate a gas solenoid valve actuator that automatically shuts off the main gas supply line when a leak or fire is detected to prevent explosions. Integration with professional emergency services via an automated GSM dialer could also be added to alert the local fire department directly. Furthermore, adding an array of temperature and humidity sensors could allow the system to differentiate between a real fire and common household occurrences like cooking smoke, reducing false alarms and providing a more comprehensive environmental safety profile.