The following hardware is required to run this sketch: Arduino board (e.g. Uno). MQ-135 and MQ-2 sensor modules. Jumper wires to connect the sensor modules to the Arduino. USB cable to connect the ...

This project is designed to detect gas leakage using an MQ-2 gas sensor and alert users through a red LED light and a buzzer. The system is controlled by an Arduino Uno microcontroller, making it easy ...

LPG is an alternative fuel used for daily use. Due to its low cost and ease of installation. This article covers an Arduino-based gas detection system that uses an Arduino UNO R3 board and gas sensors ...

This study is carried out using an arduino-uno microcontroller and MQ-2 gas sensor to address the demand. MQ-2 was chosen because it has a low price and good durability. In this work, an Arduino-uno ...

In this project, we are going to use MQ-135 sensor with Arduino to measure the CO2 concentration in PPM and display it on OLED.