Door Lock System by RFID using ARDUINO

Wireless security-based applications have rapidly increased due to the dramatic improvement of modern technologies.Many access control systems were designed and/or implemented based on different types of wireless communication technologies by different people.Radio Frequency Identification (RFID) is a contactless technology that is widely used in several industries for tasks like access control system, book tracking in libraries, tollgate system, supply chain management, and so on.In this paper, automatic RFID-based access control system using Arduino was designed.The system combines RFID technology and Arduino to accomplish the required task.When the RFID reader installed at the entrance detects an RFID tag, the system captures the user unique identifier (UID) and compares it with the stored UID for a match.If the user UID captured match with any of the stored UID, access is granted; otherwise access is denied.The results clearly show that the system is cheap, effective, and a reliable means of granting or denying access in a secured environment.