DESIGN, INTEGRATION, AND BATTERY ENERGY DEPLETION ANALYSIS OF AN RFID-BASED ATTENDANCE SYSTEM
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Portable power source, Euler method, Attendance, RFID, Energy optimisation
Abstract
The need for an automated attendance management system has evolved from the limitations of traditional approaches, such as buddy punching and the time-consuming process of covering many participants. This article presents the design and integration of an RFID-based device for recording and tracking students' attendance. The gadget is linked with Google Sheets for cloud data storage. It is fabricated using an ESP32 microcontroller, Radio Frequency Identification (RFID), and feedback mechanisms such as an LED, an LCD, a buzzer, and a push button. The push button aids dynamic switching between multiple Google Sheets. A portable power station can power the device; hence, a differential equation model was developed to observe its battery energy depletion over various usage patterns. The results obtained using Euler’s numerical method give insights into optimizing battery life and improving the device's performance.
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