Write and upload the code to the Arduino UNO, using the MQ3 sensor to read alcohol levels and control the relay and buzzer based on the readings. Powering the System: Connect the battery to power the ...

ALGORITHM The design of the alcohol detection and engine locking system aims to create a safety mechanism that prevents vehicle operation when the driver is under the influence of alcohol. This system ...

DIY Alcohol Breath Analyzer – Circuit Fig. 2 shows the circuit diagram of the alcohol detector. The circuit includes an Arduino Uno board (MOD1), four LEDs (L1 through L4), two buzzers (B1 through B2) ...

Drunk driving remains a significant issue worldwide, with thousands of lives lost every year due to accidents caused by individuals operating vehicles under the influence of alcohol. The devastating ...

The purpose of this paper is to develop a system that can effectively detect alcohol. A hygienic way of detecting alcohol has been developed. An MQ-3 sensor is connected to an Arduino Uno board which ...