Skip to content

README.md

Latest commit

 

History

History
106 lines (67 loc) · 2.8 KB

README.md

File metadata and controls

106 lines (67 loc) · 2.8 KB

NFC-Cash-Card-System

NFC Cash Card System is a Java Swing-based desktop application designed to enable cashless transactions using NFC cards. It is tailored for public canteens in controlled environments. The system supports NFC card reading, transaction processing, and real-time data communication through serial ports.

Features

  • Serial Port Communication

    • Reads NFC card data via serial port (using RXTX or jSerialComm)
    • Outputs card and transaction info to connected display devices

  • Transaction Management

    • Reload and withdrawal functionality
    • Seller and customer registration
    • Tracks all transactions for auditing

  • User Authentication

    • Secure login for administrators and sellers
    • Role-based access control

  • MySQL Database Integration

    • Stores customer, seller, and transaction data
    • Real-time data fetch and update

  • Intuitive User Interface

    • Java Swing GUI
    • Views for transaction history, card balances, and user management

Suitable Environments

This system is ideal for:

  • University and college campus canteens
  • School cafeterias
  • Office and corporate food courts
  • Hospital canteens
  • Factory or industrial staff kitchens
  • Temporary event or camp-based food services

Best suited for public canteens in campuses, schools, offices, hospitals, factories, and other controlled environments where cashless transactions are preferred.

Technologies Used

  • Java (Swing) – for desktop GUI
  • MySQL – for database and record management
  • RXTX / jSerialComm – for serial port communication
  • NFC Reader Hardware – integrated via COM port

🔌 Special Note for Future Developments

Create New Account

Communication flow between PC and Arduino:

  • MAIN_NEWREG-OPENED
    → Sent from PC when "Create New Account" UI is opened

  • MAIN_NEWREG-CARDOK
    → Sent from PC after receiving Card No from Arduino

  • MAIN_NEWREG-PINOK
    → Sent from PC after receiving PIN from Arduino

SMS on Reload

After a successful reload, PC sends this to Arduino: SMS__

Example: SMS_+941234567_Rs.100.00

TIP: Key Serial Commands

Direction Command Prefix Description
Arduino → PC MAIN_CARD_ Send NFC card number
Arduino → PC MAIN_PSW_ Send PIN number

👤 Author

Designed & Developed by Akila Ranasinghe
📧 Contact: wmakilaranasinghe@gmail.com

©️ License & Copyright

Copyright © 2018-2025 Akila Ranasinghe [Spyder Innovations]
This project is open-source under the Apache-2.0 license.
Feel free to use, modify, and distribute with attribution.