Enhancing ATM Functionality with a Single Card Solution for Multiple Bank Accounts
Pramila priscilla · INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT · 2025
ABSTRACT This project seeks to modernize traditional magnetic strip ATM cards by transitioning to RFID-based cards, each possessing a unique identifier. The data processing component is managed by an Arduino Mega microcontroller, which interfaces with various sensors to facilitate financial transactions. User authentication is accomplished through a fingerprint module for biometric verification, augmented by the implementation of a One-Time Password (OTP) transmitted to the registered mobile phone to enhance security. The system is designed to allow users to link multiple bank accounts to their RFID card, thereby enabling a range of transactions, including withdrawals. To ensure the integrity of financial operations, a servo motor activates upon successful user identification, confirming the completion of transactions. Additionally, the system incorporates Python-based facial recognition technology to provide an extra layer of security. Upon successful identification via facial recognition, pertinent data is securely transmitted to the hardware for transaction processing, thereby offering robust protection against unauthorized access and fraudulent activities. Keywords⸻ RFID-based ATM, biometric authentication, Arduino Mega, OTP security, facial recognition, transaction protection, multi-account linking