An IoT Based Access Control System Using R307 Optical Biometric Sensor
R. Anusha, Shankari N., Sukhesh Kumar Kotemane, Surabhi S. Shetty, Srijan S. Uppoor, Yashwin K. Shetty · 2025
This work offers the design of an IoT-based access control system using the R307 optical biometric sensor that increases the use of fingerprints for secure access. This system is developed to provide a safe and effective means of securing the restricted areas so adaptable for the different places such as offices, homes, and industries. The hubs of the system are the R307 biometric sensor that scans and verifies the user's fingerprints to unlock the access. The fingerprints are then recorded in the system, only the security personnel they allow access to the facility. This biometric form of identification not only enhances security by rendering door lock and unlocking impossible without the human feature being scanned but also does away with conventional security devices such as keys and cards which are always easy to misplace, copy or even have stolen. The system boasts integration with the IoT, hence its strength due to features such as remote control. Added to that is the provision for attempt log, and in most cases, real-time notifications; thus, the system is portable and expandable. This was especially true for the large-scale scenarios where access points are concurrently utilized. Besides offering highly secure access control models that integrate the fingerprint technology, the system comes with an easily understandable module for enrolling the fingerprints besides other administrative options that allow easy management of the system by both the system administrators and the ordinary users. Apart from this, the IoT framework leaves scope for further development. It is possible to integrate with other security systems or attach new sensors in order to raise the factors for authentication.