ATM Machine Using Arduino Uno with RFID and Fingerprint

Overview

This Arduino-based ATM Machine integrates RFID and fingerprint authentication to provide a secure and efficient banking system. It allows users to withdraw cash by verifying their identity through RFID cards and fingerprint scanning, reducing the risks of fraud and unauthorized access. The system simulates ATM functionality and can be expanded for real-world applications.

Working Principle

1. User Authentication:
   • The user scans their RFID card.
   • The system reads the card ID and verifies it against stored data.
   • The fingerprint scanner confirms the identity of the cardholder.
2. Transaction Processing:
   • If both verifications are successful, the user is prompted to enter the withdrawal amount using a keypad or touchscreen.
   • The system checks the account balance and updates it accordingly.
   • A servo motor simulates cash dispensing, and a receipt can be printed via a thermal printer.
3. Security Features:
   • If unauthorized access is detected, an alarm or SMS notification is triggered via GSM module.
   • Logs transactions and account details for future reference.

Key Features

✅ Dual Authentication: Uses both RFID and fingerprint for secure access.
✅ Real-Time Balance Checking: Users can check their account balance before withdrawing.
✅ Secure Transactions: Prevents unauthorized access and fraud.
✅ GSM Alert System: Notifies the user in case of suspicious activity.
✅ Expandable Design: Can be integrated with IoT, banking networks, and databases.

Applications

🔹 Mini Bank ATMs – Ideal for schools, offices, or private organizations.
🔹 Secure Access Control – Can be used for restricted access in labs, vaults, or offices.
🔹 Smart Vending Machines – Enables card/fingerprint-based purchases.
🔹 Automated Payment Systems – Useful in parking, toll booths, and metro stations.

This Arduino-based ATM system enhances security by combining RFID and biometric authentication, making it ideal for cash transactions, secure access, and smart banking applications. 🏦💳🔒