Quantity   Component name
1 × Arduino UNO R4 Wi-Fi he most recent Arduino with improved processing performance and integrated Wi-Fi. Offers ease of extension, increased speed, and stability for upcoming IoT integration.
1 × MFRC522 RFID Module Uses SPI connection to find and read the UIDs on RFID cards. Provides a quick and economical method of identifying unique cards.
1 × RFID Tags Each stands for a different student's ID. Easy, long-lasting, and reusable identity technique
1 × 20x4 I2C LCD Shows real-time timer updates, messages, and student names. Reliability is increased and wiring complexity complexity is decreased with the I2C interface.
1 × Jumper Wires Securely joins all parts, guarantees steady signal flow without the need for soldering.