In this tutorial, we are going to learn how to use Arduino and MQ2 gas sensor to check the air quality by checking the concentrations of LPG, smoke, alcohol, propane, hydrogen, methane and carbon monoxide, or other flammable gasses.

In this tutorial, we’ll explore how this amazing sensor works, how to hook it up to your Arduino, and how to start experimenting with real-time gas detection. Let’s dive in and make your next project a bit more nose-smart!

Apr 1, 2022 · In most Arduino projects, the MQ-2 sensor is used to detect hazardous or flammable gas or smoke and hence this sensor is popular among beginners. Also these are low cost, easy to use sensors featuring a wide sensing range that can be …

The MQ-2 Gas Sensor module is useful for gas leakage detecting in home and industry. It can detect LPG, i-butane, propane, methane ,alcohol, hydrogen and smoke. Some modules have a built-in variable resistor to adjust the sensitivity of the sensor.

In this video we are going to learn how to use MQ2 Gas-Smoke Sensor with Arduino so that we can detect presence of gas/smoke in air and take some action. We will make gas leak alarm...

Jul 30, 2023 · In this tutorial, we will learn how to use the MQ-4 Methane Gas Sensor with Arduino to build a gas detection alarm system. This system will utilize an LED and a buzzer to alert us when methane gas is detected in the environment.

This tutorial will cover what I have learned about the MQ135 gas sensor and its application with Arduino. The MQ135 gas sensor is capable of detecting ammonia gas, nitrogen oxides, alcohol, benzene, smoke, carbon dioxide, and other flammable gases.

This tutorial instructs you how to use Arduino Nano and the MQ2 gas sensor to assess the quality of the air by measuring the levels of gases like LPG, smoke, alcohol, propane, hydrogen, methane, and carbon monoxide.

Download the code from here and open it with Arduino IDE. Open the serial monitor from tools menu of Arduino IDE. Take a lighter and press the button to release gas near the sensor. Observe values on serial monitor. Well done!

For Arduino projects, gas sensors are highly useful for detecting gases such as carbon monoxide (CO), methane (CH4), propane (C3H8), and more. How Gas Sensors Work. Gas sensors typically use metal oxide or other materials that react when they come into contact with a particular gas.