Abstract
In recent years, it has become a fantasy that the people put their lives in risk. More often, the people consume alcoholic drinks and drive the vehicles. There are more chances that the person can hit the vehicle to any obstacle approaching him in the opposite direction due to unconsciousness caused by drinking. Many a times, we hear this kind of news in the television or read in the news paper and finally, when the situation comes to us, we are not at all concerned with it. Hence, we make a modest attempt to design and develop a simple, low cost alcohol breath analyzer using an inbuilt microcontroller.