Learn to build an RFID based attendance system using Arduino with step-by-step instructions, circuit diagrams, and complete code. This $35 DIY project replaces expensive commercial systems with ...

In this study, an attendance system was developed using the Arduino Uno card and RFID technology. This system, which can distinguish between registered and unregistered cards in the course, which ...

This project is an IoT-based solution built with Arduino and RFID technology to automate student attendance in colleges. It reduces manual errors by 30% and eases administrative work. MFRC522 → ...