Abstract: 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 ...

This project is a safety monitoring system designed to detect hazardous gas leaks using an MQ2 gas sensor interfaced with an Arduino UNO. The MQ2 sensor detects gases such as LPG, methane (CH₄), ...

In principle, MQ-Series Sensors have internal sensor resistor Rs and an external load resistor RL forms a voltage divider. The sensor resistor varies depending on the type of gas it measures, and its ...