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gas-ananlyser-using-arduino-327725-en.md

This Is An AtmosphericGasAnanlyser Using MQ Series Sensors, Dht-11 Sensor & Arduino The Basic Idea Is To Precisely Measure Data Using Sensors Analog Read & Display It In I2CLcd, Here The Sensors Can Give Values Of LPG, CNG, HYDROGEN, AIR-QUALITY This Project Can Be Used To Collect Sensor Readings For FutureResearchProcesses. If You Need You Can Simply Add An SD Card To Store The Data As String And Collect The Readings, Here For Simplicity & SpaceReduction Iam Using Arduino Nano And I2ClCD Display, For My Ease. The Sensors Spit Out Aanalog Readings And I Have Converted It Into Useful PPM Values Of The Sensors analogToPPM(analogRead(The Sensor)). It Is Very Useful So I Have Converted It To PPM, If You Like What I Do Little Support To My Youtube Channel Would Be Appreciative

EXPANDED TECHNICAL DETAILS

Multi-Gas Chemical Profiling

This project is a high-sensitivity environmental tool used to detect and measure various gaseous pollutants for home or industrial safety.

  • Semiconductor Gas Sensing: Integrates multiple sensors from the MQ series (e.g., MQ-2 for smoke/LPG and MQ-135 for air quality). The Arduino samples the analog voltage change ($V_{out}$) which is proportional to the gas concentration.
  • PPM (Parts Per Million) Mapping: The firmware applies a "Log-Log" curve calculation to the raw analog data, converting the voltages into industry-standard PPM values for precise data logging.

Safety Alarms

  • High-Decibel Alert Logic: Includes a multi-stage alarm; if gas levels exceed a primary threshold, an LED flashes. If it hits the "Danger" level, a high-volume piezo buzzer and a relay-controlled fan are activated to ventilate the area.

ข้อมูล Frontmatter ดั้งเดิม 

title: "Gas Ananlyser Using Arduino"
description: "Analyser The Atmospheric Gas Using MQ Sensors & Arduino"
author: "noneedforit"
category: ""
tags:
  - "air quality"
  - "weather"
  - "environmental sensing"
  - "arduino projects"
  - "best arduino projects"
  - "greener planet"
  - "diy projects"
  - "gas sensing"
  - "data collection"
  - "weather station"
  - "monitoring"
views: 4312
likes: 0
price: 2450
difficulty: "Intermediate"
components:
  - "1x I2C 16x2 Arduino LCD Display Module"
  - "1x Hot glue gun (generic)"
  - "1x MQ-135 Air Quality Sensor"
  - "1x 5V 2.5A Switching Power Supply"
  - "1x Breadboard (generic)"
  - "1x Grove - Gas Sensor(MQ2)"
  - "1x Gravity: Analog LPG Gas Sensor (MQ5) For Arduino"
  - "1x DHT11 Temperature & Humidity Sensor (4 pins)"
  - "1x Male/Male Jumper Wires"
  - "1x Gravity: Analog CH4 Gas Sensor (MQ4) For Arduino"
  - "1x Male/Female Jumper Wires"
  - "1x Arduino Nano R3"
tools: []
apps:
  - "1x Arduino IDE"
downloadableFiles: []
documentationLinks: []
passwordHash: "9f0cf7132b120785c16433a3c70e54d77fb518f85bbd79db34c9ae958f5f664e"
encryptedPayload: "U2FsdGVkX1+J9NrpxgJ3UdBhBMHQVDcJy3ahxqBY9WNJ1ihNP+VpOmGLHpT/JCL3kdjzcplJ7HNl4S2A+6a7ZY/MHTc2VS4TtNiqHe0LKcA="
seoDescription: "Build a Gas Analyser to monitor Atmospheric Gas using MQ Sensors and Arduino. A DIY project for air quality measurement."
videoLinks:
  - "https://www.youtube.com/embed/ERQKDBp9FJY"
heroImage: "https://cdn.jsdelivr.net/gh/bigboxthailand/arduino-assets@main/images/projects/gas-ananlyser-using-arduino-327725_cover.jpg"
lang: "en"