RFID-Based Attendance System using Arduino
The RFID-Based Attendance System is an efficient and secure method of recording student or employee attendance using RFID (Radio Frequency Identification) technology. This project utilizes an Arduino Uno, RFID Reader Module (RC522), and RFID tags/cards to log attendance with ease and accuracy.
Each individual is assigned a unique RFID card. When the card is brought near the RFID reader, it scans the card’s UID (Unique Identification Number) and sends it to the Arduino. The Arduino processes the UID and compares it with pre-stored IDs. If the card is valid, the system marks the person present and displays a confirmation message on a 16×2 LCD (with I2C). Optionally, the system can activate a buzzer or LED to indicate successful entry and log the data to an SD card or computer via serial monitor.
This system is especially useful in schools, colleges, offices, and labs to maintain digital and contactless attendance records. It also eliminates the risk of proxy attendance.
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