Assessfy Pvt. Ltd Moderate 6 milestones 50 marks

Arduino Alcohol Sense Engine Lock

Real-world project · AICTE-aligned · AI-graded · Audit-ready certificate

Enroll as Student Mentor this project

Milestones

Available mentors

Enrolled students

Core skills

About this project

Arduino Alcohol Sense Engine Lock

Objective: Develop an Arduino-based system that detects alcohol on a driver's breath and prevents vehicle engine start if intoxication is detected.

Context: Drunk driving is a significant cause of road accidents in India, and automated prevention systems can enhance road safety and save lives.

What you'll build: You'll integrate an MQ-3 alcohol sensor with an Arduino UNO to monitor breath alcohol levels, controlling a relay module to lock or unlock the engine. Optional components like a buzzer and LCD can provide alerts and status display. The system will be tested in a prototype vehicle setup for reliability and responsiveness.

Deliverables: Working engine lock prototype, demonstration video, and a brief report on system accuracy and safety features.

Milestones

1. Alcohol detection sensor calibration

5 marks 5d

Connect the alcohol sensor to your Arduino and collect readings using known alcohol concentrations. Submit a calibration curve (graph or table) mapping sensor output to BAC levels, along with your calibration code and a brief explanation of your calibration process. 'Done' means your sensor reliably differentiates between safe and unsafe BAC thresholds.

2. Engine lock relay setup

5 marks 5d

Wire a relay module to your Arduino and demonstrate control of a simulated engine lock (e.g., LED or small motor). Submit your circuit diagram, Arduino code for relay activation based on sensor input, and a short video showing the relay engaging/disengaging. 'Done' means the relay consistently responds to sensor-triggered conditions.

3. Display & alert system

5 marks 5d

Integrate an LCD or LED display and a buzzer to provide real-time BAC readings and alerts when unsafe levels are detected. Submit your display wiring diagram, code for updating messages and triggering alerts, and a video showing both normal and alert states. 'Done' means the system clearly communicates status and warnings to the user.

4. System testing in prototype vehicle

5 marks 5d

Install your prototype system in a model or toy vehicle and perform a demonstration simulating both safe and unsafe driver scenarios. Submit a video walkthrough showing sensor activation, engine lock response, and alert outputs in both cases. 'Done' means the integrated system functions correctly in a vehicle context.

5. Safety and reliability testing

15 marks 5d

Conduct repeated tests to assess the system's accuracy, false positive/negative rates, and response to environmental factors (e.g., humidity, temperature). Submit a test report with data tables, analysis of failure modes, and recommendations for improvement. 'Done' means you provide evidence of system reliability and identify any safety limitations.

6. Arduino Covid Disinfection Box

15 marks 5d

Design and build an Arduino-controlled disinfection box for Covid safety, using UV-C LEDs or similar. Submit photos of your assembled box, wiring diagram, Arduino code for timed disinfection cycles, and a video demonstrating safe operation. 'Done' means your box operates automatically, safely, and is ready for practical use.

Open internships using this project -->

Upcoming sessions

Session	Window	Enrolled
Arduino Alcohol Sense Engine Lock	11 Jun 2026 to 10 Jun 2028	0

Skills you'll learn

Sensor interfacingArduino programmingAutomotive electronics

Tools used

Arduino UNO MQ-3 Alcohol sensor Relay module Buzzer & LCD (optional) Battery or power supply

Prerequisites

Basics of Arduino and analog sensors Knowledge of relays and ignition circuits

Available mentors

Priyang Kumar

Free

You'll earn — Certificate (PDF)

AICTE-aligned Project Completion Certificate

A formal, audit-ready PDF certificate issued by Assessfy + your institute on successful completion. Includes AICTE credit hours, your evaluator's signature, and a QR code for third-party verification.

AICTE-aligned

Certificate of Project Completion

This is to certify that

has successfully completed the project

Arduino Alcohol Sense Engine Lock

Scan to Verify

Date

Signature

Auto-issued on completion QR-verifiable

You'll earn — Digital Badge

Shareable LinkedIn / Resume Skill Badge

A compact, verifiable Open-Badges-2.0-compliant digital credential. Add to your LinkedIn profile, GitHub README, or resume in one click. Recruiters can validate authenticity via a unique URL.

Moderate

Arduino Alcohol Sense Engine Lock

Assessfy

Auto-issued on completion One-click LinkedIn add