IoT Based Gas and Fire Alarm System with Smart Safety

IoT Gas & Fire Alarm Kit with Smart Safety Product Overview: This ready-to-use student project kit detects gas leaks and flames, sends instant notifications to your mobile via the Blink IoT app using an ESP8266, sounds a local alarm, runs a 5V fan to ventilate, and actuates an MG995 servo to turn off the gas regulator. Battery backup is provided by two 18650 cells with a Type-C charging board and a buck converter for stable 5V supply. Ideal for science fairs and educational demonstrations. Introduction: The kit combines easy-to-use sensors like the MQ-2 gas sensor and a flame sensor module with Wi-Fi connectivity for remote alerts. Built with student-friendly components and clear wiring, it demonstrates an end-to-end IoT safety system — detection, notification, local alarm, ventilation, and automatic shutoff control. Specifications Sensors: MQ-2 gas sensor module (combustible gases), Flame sensor module Microcontroller / Connectivity: ESP8266 (Wi-Fi) — works with Blink IoT app Actuators: MG995 180° metal-gear servo (gas regulator control), 5V active buzzer (alarm) Ventilation: 5V DC cooling fan (automatic on gas detection) Power: 2 × 18650 cells (series 2S ≈ 8.4V nominal), Type-C 2S charger board Voltage Regulation: LM2596 buck converter to 5V for MCU, sensors, and servo Switching & Control: SPST rocker switch for main power; MOSFET/driver recommended for switching loads Frame & Wiring: 5mm PVC board frame, 22AWG wiring, screw terminals Dimensions (approx.): kit board ~150×100×40 mm (frame size may vary) Use Case: Educational demo / science fair project — IoT alerts + local mitigation