Description So when we talk about the working of this project there are two things which are the major part of this project. One is the Arduino and another is RFID RC522 card reader and Tag. it is simple, when we tap the tag at the Reader then our lock will be open. what process goes inside the system we will talk about it in this paragraph. RFID rc522 is a radio frequency-based module in which having the sensing range is near about 5 cm. because there is two thing transfer from one module to another module. The reader is connected to the power supply and it provides the power to the tag also by the mutual induction method. it means when the tag reaches in the range of the coil of reader then voltage induced in the tag for a moment. at this moment the tag aslo transfers the information inside the chip via Radiofrequency. when we take the tag near to the reader the voltage and current induce in the tag and that instant the tag transfer the information via Radiofrequency that’s why we called it RFID that stand for Radio frequency identification method.
