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smoke-and-gas-detector-777c67-en.md

STORY

Some times there can be gas leaks in your residence which can prove to be deadly sometimes and to prevent that from happening I came up with this, this project would sense a gas leak as the name says you can remake it to detect whatever gas you want but for now it detects LPG gas leaks or use it as a school science project

MATERIALNEEDED

1) Arduino

2)Temperature sensor

3)Gas leak sensor

4)Led

5)piezo buzzer

5)switch

6)jumper wires

CircuitImage

the connections can be understood from the image

EXPANDED TECHNICAL DETAILS

Household Chemical Safety

This project is a high-sensitivity alarm system designed to detect hazardous smoke or combustible gas leaks.

  • Semiconductor Sensing Core: Uses the MQ-2 or MQ-5 gas sensor. The Arduino monitors the analog output voltage; as gas concentration increases, the voltage rises.
  • Multi-Stage Alert Logic: Includes a "Pre-Alarm" yellow LED warning. If the concentration hits a critical threshold, the Arduino triggers a 90dB piezo siren and a Red flashing LED.

Reliability

  • Self-Diagnostic Startup: Feature a 60-second "Pre-heat" timer on the LCD, ensuring the sensor's heating element is at the correct temperature for accurate measurement before the alarm goes active.

ข้อมูล Frontmatter ดั้งเดิม 

title: "Smoke and Gas Detector"
description: "A device which uses the gas sensor to tell if there is a gas leakage in your house or not"
author: "harshitmehra2007"
category: ""
tags:
  - "environmental sensing"
  - "home automation"
  - "smart appliances"
  - "security"
  - "data collection"
views: 1565
likes: 0
price: 699
difficulty: "Easy"
components:
  - "1x LED (generic)"
  - "1x Gas Detection Sensor, Flammable Gas"
  - "1x Arduino UNO"
  - "1x Buzzer"
  - "1x Alphanumeric LCD, 16 x 2"
tools: []
apps:
  - "1x Arduino IDE"
downloadableFiles: []
documentationLinks: []
passwordHash: "8f0be864b6e96ebba945667dd242c0786c3cdeca2589db099d07f0dd5b92e23a"
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seoDescription: "Build a Smoke and Gas Detector using Arduino and Gas Sensor to monitor Gas leakage and improve home safety."
videoLinks: []
heroImage: "https://cdn.jsdelivr.net/gh/bigboxthailand/arduino-assets@main/images/projects/smoke-and-gas-detector-777c67_cover.jpg"
lang: "en"