Arduino Based Alcohol Sensing & Engine Locking System

Abstract

Drunkenness is one of the main causes of car accidents in the world today. In every car accident case in the world, a driver who consumed excessive amounts of alcohol has been investigated. So here we have created a smart wine experience using arduino which turns off the engine and combines with gsm or gps for location transfer. The system provides automatic detection of breath alcohol and we also show that the engine is used as a tool. We also use the GSM module to send SMS to interested parties when alcohol is detected and the engine stops. There are wide range of MQ series gas sensors where as we use MQ3 gas sensor with arduino uno for this project along with GSM for messaging. If the driver is feeling well, i.e. the alcohol level is below the allowable limit, the car will usually indicate by turning the engine, but in the case of a drunk driver, the alcohol level will be higher than normal. Allowed level detected by the detector Breathalyzer and Arduino control can stop the engine to not get drunk and also send notification to the authorities or family members to help.