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Breathalyzer

Introduction

The project involves creating a breathalyzer using the MQ-3 alcohol and ethanol gas sensor, an UNO R3 development board, a breadboard, and an OLED IIC display. The MQ-3 sensor detects the presence of alcohol in the breath, and the UNO R3 board processes the sensor data and displays the alcohol level on the OLED IIC display. The breadboard is used to connect the sensor and display to the UNO R3 board. The breathalyzer can be useful for monitoring alcohol consumption and preventing drunk driving.

General Description

The Arduino breathalyzer project is designed to measure the amount of alcohol present in a person's breath. The device uses an alcohol sensor that is capable of detecting the presence of ethanol, which is the primary alcohol found in alcoholic beverages.

The sensor works by analyzing the chemical properties of the breath sample and producing a voltage output that is proportional to the concentration of ethanol. The Arduino microcontroller is programmed to read the sensor output and convert it into a blood alcohol content (BAC) reading.

Once the BAC reading has been determined, the result is displayed on a LED screen, which can be easily read by the user. The LED screen typically displays the BAC reading in a numerical format, indicating the level of alcohol in the person's breath.