How to Track Attendance via RFID, BLE and QR Codes

By Claire Swedberg

Schools and conferences have a variety of choices, ranging from inexpensive QR codes and LF RFID to automated systems with fixed readers leveraging UHF RFID technology.

When students in Professor Hatem Abou-Senna's courses at the  University of Central Florida show up for class each day, they are detected and reported as present with a simple interaction that employs their smartphone and a scanning device. The technology requires only a few seconds per interaction, sparing everyone in the room the five to ten minutes of each class that had previously been consumed with the instructor calling out names and waiting f...

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