LPG Leakage Detection System

Smart gas leak detector with auto shut-off, buzzer, and servo valve control using Arduino and MQ-6 sensor.

Source Code Demo Video Project Files

Technologies Used

Arduino MQ-6 Sensor Servo Motor IoT Safety

Started: June 10, 2023

Completed: June 25, 2023

Duration: 15 Days

Technical Specifications

MCU

Arduino Uno

Sensor

MQ-6

Actuator

Servo Valve

Alert

Buzzer + LED

Project Progress

Sensor Integration100%
Auto Shut-Off100%
Testing95%

Project Overview

An IoT-enabled LPG leakage detection system that monitors gas levels using MQ-6 sensor and automatically shuts off supply via servo-controlled valve to prevent accidents.

Key Features

Real-Time Gas Monitoring

Detects LPG concentration instantly.

Auto Valve Shut-Off

Servo closes gas line on detection.

Audio-Visual Alert

Buzzer + flashing LED warning.

Achievements

Prevented potential gas explosions in testing

Key Learnings

Gas Sensor Calibration

Learned MQ-6 sensitivity and threshold tuning.

Servo Control Logic

Implemented fail-safe valve closure.

Safety Protocols

Designed for zero false negatives.

Target Audience

  • Home safety system developers
  • IoT and embedded hobbyists
  • Gas appliance manufacturers
  • Educational safety projects

Applications

  • Kitchen safety
  • Industrial gas monitoring
  • Hostels & PG accommodations
  • LPG cylinder regulators
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