Alcohol Detection using Pic Micro Controller

Sonawane Bhagayshree U.; Rupwate Suvarna P.; Thakare Bhagyashri S.; V. V. Joshi

CALL FOR PAPERS : Feb-2026

Submission Last Date

25-Feb-26

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Alcohol Detection using Pic Micro Controller

Author(s):

Sonawane Bhagayshree U. , SANDIP FOUNDATION NASHIK.; Rupwate Suvarna P., SANDIP FOUNDATION NASHIK.; Thakare Bhagyashri S., SANDIP FOUNDATION NASHIK.; V. V. Joshi

Keywords:

PIC micro controller, Alcohol Sensor, Alcohol Detection

Abstract:

The main purpose behind this project “ALCOHOL DETECTION USING PIC MICROCONTROLLER”. Now a days, in many hostels, industry, while driving vehicles, etc. This will creates lots of accidents occurred. Here in this project we show that how we detect alcohol using MQ3 alcohol sensor. Then buzzer is ON and the same time LCD display in the percentage form and simultaneously voice signal can indicate the student drunk or not. This project should be fitted /installed inside the hostel. The main aim of this project is to develop a system that can detect the alcohol content in the air then automatically turn ON the buzzer if alcohol percentage exceeds the limit. Then simultaneously signal display on LCD. This system used PIC18f4550 micro controller as a processing center for all input and output micro controller interfacing exceeds with ADC. In this we are going to embed the program to receive data from alcohol sensor, convert it into digital form and then display on LCD. The alcohol sensor gives out analog data that can be analyzed by PIC18f4550 so we don’t use analog to digital converter to convert it into digital format. Because, the PIC18f4550 has inbuilt A/D converter.