Line Following Smart Trolley System Using Arduino

Overview

The Line Following Smart Trolley System is an intelligent shopping assistant that automatically follows a designated path using infrared (IR) sensors and Arduino. This smart trolley enhances the shopping experience by reducing manual effort, making it convenient for customers in supermarkets, airports, and retail stores.

Working Principle

1. Line Following Mechanism:
   • The trolley is equipped with IR sensors that detect a predefined path marked on the floor.
   • An Arduino microcontroller processes the sensor input and controls DC motors to move along the path.
2. Obstacle Detection:
   • A ultrasonic sensor detects obstacles in the trolley’s path and stops or reroutes accordingly.
   • Ensures safe and smooth movement in crowded areas.
3. Smart Shopping Integration (Optional):
   • The trolley can be equipped with an RFID scanner to track products.
   • A wireless billing system can be integrated to automate checkout.

Key Features

✅ Hands-Free Navigation: The trolley follows a predefined path without manual control.
✅ Obstacle Avoidance: Detects and avoids obstacles for smooth operation.
✅ Arduino-Controlled: Efficient and reliable control using Arduino and sensors.
✅ Expandable with IoT: Can be integrated with RFID-based billing, mobile apps, or AI tracking.

Applications

🔹 Supermarkets & Malls – Reduces customer effort while shopping.
🔹 Airports & Stations – Can be used for luggage transportation.
🔹 Hospitals & Warehouses – Automates material handling in large areas.
🔹 Factories & Industries – Assists in carrying components or equipment.

This Line Following Smart Trolley enhances convenience, reduces shopping fatigue, and introduces automation in retail and logistics. 🛒🔄🤖