IoT-Based Smart Trolley System and Billing Using Arduino

Introduction

The IoT-Based Smart Trolley System with Automated Billing is an innovative project designed to revolutionize the shopping experience. It eliminates the need for traditional checkout counters by automatically scanning products and generating a bill in real-time. This system integrates RFID technology, Arduino microcontroller, and IoT connectivity to make shopping faster, more efficient, and hassle-free.

Components Used

• Arduino Uno/Nano – Processes the product data and controls the system.
• RFID Reader & Tags – Automatically scans products added to the cart.
• LCD Display (16×2 or OLED) – Displays product details and total bill.
• Wi-Fi Module (ESP8266/NodeMCU) – Connects the system to an IoT platform for cloud-based billing.
• Buzzer & LED Indicators – Provide alerts when items are added or removed.
• Battery Module – Powers the trolley system wirelessly.

How It Works

1. Product Scanning – Each product is tagged with an RFID label, which the RFID reader in the trolley detects when the item is added.
2. Billing Calculation – The Arduino processes the scanned product’s price and updates the bill in real time on the LCD screen.
3. Cloud-Based Connectivity – The total bill is synced with a mobile app or central billing system using the Wi-Fi module.
4. Checkout Process – Customers can directly pay via mobile payment methods and leave without waiting in queues.

Key Features

✔️ Automatic Product Detection – Eliminates the need for barcode scanning.
✔️ Real-Time Billing – Updates the total cost instantly on the display.
✔️ IoT Connectivity – Syncs billing data with a central server or mobile app.
✔️ Smart Alerts – Buzzer and LED notify users of added/removed products.
✔️ Easy Payment Integration – Supports mobile wallets and online transactions.

Applications

✅ Supermarkets & Retail Stores – Reduces checkout time and improves customer convenience.
✅ Automated Billing Systems – Enhances shopping experience by making it seamless.
✅ Inventory Management – Helps store owners track product stock in real-time.

The IoT-based Smart Trolley System is a next-generation solution for automated shopping, enhancing both customer experience and retail efficiency. 🛒💳