Intelligent System for Vehicles with Alcohol Detection STEM DIY Experiment Science Project Model KIT (Assembled, 100% Tested)

Abstract:
Alcohol-related accidents are a major concern globally, contributing to approximately 2.3 million premature deaths annually. This STEM project introduces an advanced Alcohol Detection System designed for vehicle ignition locking. Using the MQ3 alcohol sensor, the system analyzes breath alcohol content to determine sobriety. If alcohol is detected, the vehicle ignition is disabled, ensuring road safety. Additional rolling retests enhance the reliability of the system.

Working Mechanism:
This project leverages the MQ3 Alcohol Sensor to detect alcohol vapors in the air. The sensor converts the alcohol concentration into an output voltage, which activates an alarm (buzzer and LED) upon detection. The circuit is simple yet effective, widely used by law enforcement for combating drunk driving.

Key Features:

• MQ3 Sensor Specifications: Six pins with easy connections for power and output.
• Adjustable sensitivity via resistor R1 and potentiometer VR.
• 5V DC operation facilitated by IC 7805 voltage regulator.
• Comprehensive tutorials and diagrams provided for assembly and testing.

Applications:
This kit is ideal for:

1. Electronic automation systems.
2. Robotics and DIY educational projects.
3. STEM-based school and college science experiments.
4. Awareness initiatives to promote road safety.

Why Choose This Kit?

• Pre-assembled and 100% tested for optimal performance.
• Simple setup with full documentation support.
• Reliable and safe for use in diverse environments