Ijraset Journal For Research in Applied Science and Engineering Technology
Bluetooth-Based Smart Attendance System Using ESP32
Authors: Nilesh Patil, Pranjali Dhananjay Patil, Shruti Arjun Madane, Shatakshi Sachin Patil, Aishwarya Pradeep Lad
DOI Link: https://doi.org/10.22214/ijraset.2026.78544
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Abstract
The Bluetooth-Based Smart Attendance System is designed to automate and simplify the attendance tracking process in educational institutions. Traditional attendance systems such as manual registers or roll calls consume time and are prone to errors and proxy attendance. This project introduces a smart solution that uses Bluetooth Low Energy (BLE), where students broadcasts their roll numbers through BLE signals. ESP32 microcontrollers installed in classrooms continuously scan for these signals and detect nearby student devices. The detected attendance data is uploaded to a Firebase Realtime Database for instant synchronization. Teachers can view and manage attendance through a web portal built using PHP and MySQL. The system ensures real-time attendance monitoring, prevents proxy attendance, reduces manual work for teachers, and generates attendance reports automatically. This solution is cost-effective, scalable, and suitable for modern educational institutions that aim to implement digital attendance management.
Introduction
The Bluetooth-Based Smart Attendance System automates student attendance in educational institutions using BLE (Bluetooth Low Energy) technology. Students broadcast their roll numbers via an Android app, which are detected by ESP32 devices in classrooms. The attendance data is uploaded to a Firebase cloud database and can be accessed in real time by teachers through a web portal, while MySQL stores permanent records for reporting. This system improves accuracy, prevents proxy attendance, reduces manual work, and provides automated reporting and analytics. Compared to existing systems like RFID, biometric, or QR-code-based attendance, it offers a secure, efficient, and cost-effective solution.
Conclusion
The Bluetooth-Based Smart Attendance System successfully automates the attendance process using modern technologies such as BLE, ESP32, Firebase, and web applications. The system reduces the time spent on attendance management and improves the accuracy of attendance records. By detecting student presence automatically through BLE signals, the system eliminates proxy attendance and minimizes manual errors. Teachers can easily view attendance data and generate reports through the web portal. Overall, this system provides an efficient, scalable, and cost-effective solution for educational institutions looking to implement digital attendance management systems.
References
Books & Academic Papers [1] Gomez, C., Oller, J., & Paradells, J. (2012). Overview and Evaluation of Bluetooth Low Energy Technology. Sensors Journal. [2] Kumar, S., & Lee, S. (2021). Android Based Smart Attendance System Using Bluetooth Low Energy. International Journal of Computer Science. [3] Patel, R., Singh, A., & Verma, P. (2020). IoT Based Attendance Management System Using ESP32. Journal of Emerging Technologies. Online Documentation [4] ESP32 Technical Reference Manual – Espressif Systems. [5] Android Bluetooth Low Energy Documentation – Google Developers. [6] Firebase Realtime Database Documentation – Firebase Developers. [7] MySQL Documentation – Oracle Corporation. [8] PHP Official Documentation – PHP Group.
Copyright
Copyright © 2026 Nilesh Patil, Pranjali Dhananjay Patil, Shruti Arjun Madane, Shatakshi Sachin Patil, Aishwarya Pradeep Lad. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Paper Id : IJRASET78544
Publish Date : 2026-03-20
ISSN : 2321-9653
Publisher Name : IJRASET
DOI Link : Click Here
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