Real-Time Alcohol Detection and Response System with Arduino and MQ-3 Sensor Integration

Drunk driving remains a significant issue worldwide, with thousands of lives lost every year due to accidents caused by individuals operating vehicles under the influence of alcohol. The devastating consequences of such accidents have prompted the development of innovative technologies aimed at curbing this dangerous behaviour. The purpose of this paper is to develop a system that can effectively detect alcohol. A hygienic way of detecting alcohol has been developed. An MQ-3 sensor is connected to an Arduino Uno board which processes the data from the sensor and triggers appropriate responses depending on the alcohol concentration level. The integration of a buzzer, push button, and LED enhances the functionality of the system by providing real-time alerts and visual indications to the user. Quantitatively and qualitatively, the circuit works better than the state-of-the-art methods. Differentiation between the three types of alcohol using only one sensor was one of the main challenges faced.