Atmega Controller-based Engine Immobilization and Detection of Alcohol in Light-Duty Vehicles

The proposed method is meant to offer an ignition lock that is activated by alcohol, making it impossible to operate a car while under the influence. This gadget uses a Breathalyzer sensor to detect alcohol on the driver's breath, and if it is detected, the vehicle's engine is locked. The ignition system will include a Breathalyzer sensor that the driver must blow into before starting the engine. If the driver's Blood Alcohol Content (BAC) is too high, the car won't start and the engine won't unlock. Drunk driving is the primary cause of traffic accidents and deaths, and this plan tries to reduce that. This innovation has the potential to save countless lives and prevent countless injuries by preventing drunk drivers from operating motor vehicles. The system's potential to reduce drunk driving risk is supported by the fact that it is anticipated to be cost-effective, user-friendly, and reliable.