The use of LPG and other combustible gases in homes and industries poses serious safety risks due to potential gas leaks. This project presents an IoT-based Gas Leakage Detection System with an Automatic Regulator On/Off mechanism to prevent accidents caused by undetected leaks.

Using an MQ-5 sensor, the system detects gases like LPG and methane. An Arduino Uno controls safety responses: it shuts off the gas supply via a servo motor, activates an exhaust fan, and alerts users with a buzzer, LEDs, and an LCD display. Designed for energy efficiency and IoT expansion, the system offers a reliable, real-time solution to enhance gas safety in various settings.