Microcontroller Based Bank Locker Security System

This research presents the design and implementation of a microcontroller-based bank locker security system that enhances protection through biometric and One-Time Password (OTP) authentication. The system utilizes a microcontroller (such as Arduino or PIC) to control a fingerprint scanner for biometric verification, ensuring that only authorized users can access the locker. Additionally, an OTP is generated and sent to the user’s registered mobile number via a GSM module, adding a second layer of security. This dual-authentication approach prevents unauthorized access and provides a higher level of protection. The GSM module also allows real-time alerts to be sent to both the bank’s security team and the locker owner in case of any suspicious activity or tampering. The system is designed to ensure continuous operation through a backup power supply, making it reliable even during power outages. This paper discusses the architecture, implementation, and advantages of combining fingerprint recognition with OTP-based security in banking environments. The proposed system is cost-effective, scalable, and offers a significant improvement in safeguarding customer valuables.