Copyright: © the author(s), publisher and licensee Technoscience Academy. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited International Journal of Scientific Research in Science, Engineering and Technology Print ISSN: 2395-1990 | Online ISSN : 2394-4099 (www.ijsrset.com) doi : https://doi.org/10.32628/IJSRSET 219 IoT Based Bank Locker System using OTP Technology 1 Dr. Sheeja V Francis, 2 Rupus Daniel J, 3 Sarath K, 4 Surendar N, 5 Sathish Kumar S 1 Professor 2-5 UG Student, 1-5 Department of ECE, Jerusalem College of Engineering, Pallikaranai, Tamil Nadu, Chennai, India Article Info Publication Issue : Volume 10, Issue 1 January-February-2023 Page Number : 219-223 Article History Accepted : 10 Jan 2023 Published: 30 Jan 2023 ABSTRACT This paper proposes a method to design and implement a secure bank locker system based on Fingerprint and OTP technology that s can be organized in banks, offices and homes. The system allows only an authenticated person to recover the documents or money from the lockers. Initially, the person has to enroll username, password and mobile number in an authorized data baser. If the username and password matches, then Finger print of the person will be detected and stored with an unique ID. If the ID matches, then four-digit code (OTP) will be sent on authorized person’s mobile to unlock. This system can also create a log containing check in and check out details of each user along with basic information. Keywords - OTP, Arduino UNO I. INTRODUCTION In the real world, people are more concerned about the safety of their valuable things like jewelry, money, important documents etc. So the bank lockers are the safest place to store them. The arrival of fast growing technologies makes users to have high security systems with electronic identification options. These identification technologies include Bank Lockers and ATM as well as other intelligent cards, user IDs and password based systems and so on. Unfortunately, these systems are not protected from hacker attacks, thefts, and forgotten passwords. In spite of all these disadvantages these systems are still existing; however, the biometric or fingerprint authentication based identification is the most efficient and reliable solution for stringent security [1]. Biometrics measure an individual’s unique physical or other characteristics to recognize or authenticate their identity. The physical characteristics used are fingerprint, hand, face, iris etc. and other characteristics are signature, voice keystroke patterns etc. The conventional biometric system operates in two modes; verification mode and identification mode. In the verification mode, the system validates a person’s identity and in the identification mode the system recognizes an individual by searching entire template data base for match. And the system performs one to many comparisons to establish the individual identity or fails if the subject is not enrolled in the system data base. Hence use of fingerprint to ensure security in the system is being explored. Although safety is an important issue in the banking sector most advanced technologies are not being used currently. Money in