Designing of Smart and Secure Single ATM Card for Multiple Bank Accounts

In the era of digital banking, security and convenience are paramount in financial transactions. This paper presents the design of a smart and secure single Automated Teller Machine (ATM) system that incorporates Radio Frequency Identification (RFID) technology for enhanced transaction management. The proposed system utilizes a single RFID card for multiple transactions linked to a mobile application, allowing users to manage account selections, initiate transactions, and access banking details conveniently. This groundbreaking method not only streamlines the user interface but also fortifies protection through cutting-edge verification and information safeguarding techniques. The objective of this study is to create a resilient ATM system capable of safeguarding user information while providing seamless transaction capabilities, ultimately contributing to a more efficient banking ecosystem in line with modern technological advancements Keywords: RFID card, RFID Reader, RFID Tag, Digital banking, Mobile Application, Arduino UNO.