Detects alcohol vapor in the driver’s breath, providing an analog output proportional to the concentration of alcohol. Arduino Uno Microcontroller: The core processing unit that receives input from ...

Abstract: The prevalence of alcohol-related traffic accidents has led to a growing demand for technological solutions that can prevent drunk driving. This paper presents a design and implementation of ...

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 ...

Gas leaks can pose serious safety risks, especially in homes, kitchens, and small commercial spaces. In this project, you'll learn how to build a simple and budget-friendly gas leakage detector using ...