Abstract: - The aim of my seminar report is to represent human driving safer and to overcome accidents. This seminar is developed by integrating alcohol sensor with Arduino board. Arduino processor ATmega328 is able to handle more functions than conventional microcontrollers. The alcohol sensor used is MQ3 which to detect the alcohol content in human breath. Since sensor has fine sensitivity range around 2 meters, it can suit to any vehicle and can easily be hidden from the suspects. This is fitted inside the vehicle. It is designed for the safety of people sitting inside the vehicle.

Keywords- Arduino ATmega328,Alcohol detector,MQ3, LCD,Buzzer