Internet of Things (IoT) Enabled RFID-Based Digital Attendance System with ESP32

To improve effectiveness along with dependability of attendance management in organizations, this article presents an RFID attendance system on the basis of IoT. Traditional manual methods and early digital systems suffered from inefficiencies and risks of data loss, respectively. The proposed system leverages the ESP32 microcontroller and RFID technology to automate attendance tracking, where RFID tags are scanned, and data is securely transmitted to a cloud server. Programmed using Embedded C in the Arduino IDE, the system employs libraries like RFID 522, Adafruit MQTT, and Wi-Fi for seamless integration and real-time data access. This innovative approach addresses the limitations of traditional methods, offering a scalable, cost-effective, and secure solution for modern attendance management.