Research Report By: Vidit Shringi Abstract Radio-Frequency Identification (RFID) is a technology used for automatic identification and data capture. In this research report, we explore the use of an RC522 RFID Module with the Arduino Uno , connected via jumper wires , and programmed through the Arduino IDE software . The project demonstrates RFID authentication using RFID tags/cards, which can be integrated into smart security systems, attendance mechanisms, and IoT applications. The research also documents the circuit setup, code logic, and potential real-world applications. 1. Introduction The integration of RFID systems with microcontrollers like Arduino Uno has opened doors for the development of low-cost, efficient access control systems. This report focuses on using the RC522 RFID module , Arduino Uno , RFID card/tag , and jumper wires , with programming done through the Arduino software (IDE) . 2. Components Used Arduino Uno A microcontroller board based on th...