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S.D.A.S

Smart Driving Awareness System

Embedded Systems Engineer 3 months Shell Selamat Sampai Varsity Challenge 2024
SDAS hardware mounted in car dashboard
At a Glance
3 Safety Gates alcohol + identity + speed
<1s Response Time gate to decision
~0% False Positives in testing
National Competition Shell 2024
Overview

What is it?

An in-car IoT safety system that prevents drunk driving, monitors speed, and identifies the driver. Built for a national competition in 3 months.

SDAS hardware product shot
The Problem

What needed solving?

Drink-driving remains a leading cause of road fatalities in Malaysia. Existing solutions are expensive, cloud-dependent, or easy to bypass. None address sobriety, identity verification, and speed monitoring in a single unified system.

No single device addressed drunk driving, identity, and speed at once.
Process

How it was built

01
Safety Requirements Define safety gates and Malaysian road safety standards
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02
Sensor Calibration Calibrate MQ-3 alcohol thresholds and GPS speed limits
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03
Firmware Development Write Pico firmware for sensor fusion and gate logic
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04
Dashboard UI Build driver-facing status display and alerts
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05
Integration Testing Test all 3 safety gates under real conditions
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06
Competition Demo Present and demonstrate live at Shell Varsity Challenge
Solution

How we solved it

Designed a pre-ignition gate: the car won't start until the driver passes a MQ-3 breath alcohol test. HuskyLens handles facial identification so only registered drivers can operate the vehicle. A GPS module triggers configurable audio speed alerts in real time. The entire system runs on a Raspberry Pi Pico.

SDAS electronics internals
Gallery

Build & demo

Technology

Why these technologies?

TechnologyWhy we chose itRole in system
Raspberry Pi PicoDual-core ARM microcontroller with ultra-low power draw, suitable for always-on installation in a car without draining the battery.Sobriety gate + sensor fusion
HuskyLensDedicated AI camera module for face recognition that runs entirely on-device with no server, no API, no internet required.Facial ID gate
MQ-3 SensorIndustry-standard electrochemical alcohol sensor with calibrated sensitivity in the breath-test range (0.05–0.5 mg/L).Alcohol detection
GPS ModuleStandalone NMEA-output GPS provides speed data without cellular dependency and works in any location.Speed monitoring
Performance

Key metrics

Safety Gates Activealcohol + identity + speed
3
Gate Response Timegate to decision
<1s
False Positivesin testing
~0%
Results

What we achieved

✓

Pre-ignition alcohol gate blocks drunk drivers before the car starts

✓

HuskyLens facial ID ensures only authorized drivers can operate the vehicle

✓

Real-time GPS speed alerts with configurable thresholds

✓

Competed nationally in Shell Selamat Sampai Varsity Challenge 2024

✓

Full system assembled and demonstrated within a 3-month timeline

Stack

Technologies used

Raspberry Pi Pico HuskyLens AI GPS Module MQ-3 Sensor JavaScript HTML/CSS
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