GPS Tracker & Alcohol Detector with Engine Locking System
Introduction
Road safety is one of the biggest concerns in today’s world, and drunk driving remains a major cause of accidents. To address this issue, we developed a GPS Tracker & Alcohol Detector with Engine Locking System that enhances vehicle safety by preventing the vehicle from starting when alcohol is detected. Additionally, the system tracks the vehicle’s live location using GPS technology.
This project is designed to promote safer driving habits and reduce accidents caused by alcohol consumption.
Source Code
For the complete project source code, please click on the GitHub repository link below:
🔗 GitHub: PankajJoshi
🔗 GitHub Repository: GPS-Tracker-Alcohol-Detector
Watch the Video on the Youtube click here
Objective of the Project
The main objectives of this project are:
To detect alcohol consumption before driving
To automatically lock the engine if alcohol is detected
To provide GPS tracking for vehicle location monitoring
To improve overall vehicle safety and accident prevention
Features
Our smart vehicle safety system includes the following features:
Alcohol Detection: Detects alcohol level using MQ-3 alcohol sensor
Engine Locking: Prevents engine ignition if alcohol exceeds threshold
GPS Tracking: Tracks real-time vehicle location
LCD Display: Shows live system status and messages
Buzzer Alert: Warns the driver when alcohol is detected
LED Indicators: Displays system condition visually
Components Required
To build this project, the following components are used:
Arduino UNO / Nano
MQ-3 Alcohol Sensor
GPS Module (Neo-6M)
Relay Module
16x2 I2C LCD Display
Buzzer
Red LED and Green LED
Jumper Wires
Breadboard / PCB
Power Supply
Circuit Connections
Alcohol Sensor
VCC → 5V
GND → GND
Analog Output → A0
GPS Module
VCC → 5V
GND → GND
TX → Arduino Pin 2
RX → Arduino Pin 3
Relay Module
VCC → 5V
GND → GND
IN → Arduino Pin 7
Buzzer
Positive → Arduino Pin 8
Negative → GND
Red LED
Positive → Arduino Pin 9
Negative → GND
Green LED
Positive → Arduino Pin 10
Negative → GND
LCD Display
VCC → 5V
GND → GND
SDA → A4
SCL → A5
Working Principle
The system continuously monitors alcohol levels using the MQ-3 sensor.
Normal Condition
If no alcohol is detected:
Green LED turns ON
Engine remains unlocked
Vehicle can start normally
Alcohol Detected
If alcohol exceeds threshold:
Red LED turns ON
Buzzer activates
Relay locks the engine
Vehicle cannot start
At the same time, the GPS module fetches the vehicle’s location for tracking purposes.
Applications
This project can be used in:
Personal vehicles
Commercial transport systems
Fleet management
Driver safety systems
Anti-drunk driving applications
Advantages
Prevents drunk driving accidents
Enhances road safety
Provides real-time location tracking
Low-cost and easy to implement
Reliable and efficient
Future Scope
Future improvements can include:
Mobile app integration
GSM alert messaging system
Cloud-based vehicle monitoring
AI-based driver behavior analysis
Conclusion
This project demonstrates an advanced vehicle safety system by combining alcohol detection, GPS tracking, and engine locking technology. It provides an effective solution for reducing drunk driving incidents and improving transportation safety.
Thank You for Visiting!
Team The Electronics Creator
