Low-Cost Class Room Attendance System using STM32 Microcontroller
DOI:
https://doi.org/10.15662/IJEETR.2026.0802090Keywords:
STM32, Fingerprint Recognition, Attendance System, Embedded Systems, BiometricsAbstract
This paper presents the design and implementation of a low-cost, portable classroom attendance system using the STM32 Blue Pill Development Board and biometric fingerprint technology. Traditional attendance methods are time-consuming and prone to proxy attendance. To address these issues, a compact handheld device is developed using the STM32 microcontroller, R305 Fingerprint Sensor, and a 16×2 LCD display. The system ensures accurate and secure attendance recording while maintaining affordability. The device is powered using a power bank, making it portable and convenient for classroom use. Experimental results show improved efficiency and reliability compared to manual methods.
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