Alcohol Detection and Vehicle Engine Locking System
This paper represents our final year project in which we try to tackle the problem of loss of life and property due
to drunken driving. In our project, we have used Arduino Uno3 microcontroller attached to an alcohol sensor which detects
the presence of alcohol by analyzing breath of a person driving the vehicle. Engine of the vehicle is turned off and the
emergency siren is blown as soon as alcohol is detected, thereby minimizing the chances of any mishaps that could have
happened. Therefore, loss of life and property is avoided.
Keywords - Alcohol detection, Arduino Uno, MQ3 Sensor, Engine Locking