RFID实现代码，可以通过iic接口操作，通过这个程序可以快速完成自己项目的开发。 Descr iption: AT89S52 Firmware for HY502 Serial Reader This project is designed for HY502XX OSC use 11.0592MHz crystal. -RFID codes, can iic interface operation, Through this procedure can quickly c

RFID是Radio Frequency Identification的缩写，即射频识别。常称为感应式电子晶片或近接卡、感应卡、非接触卡、电子标签、电子条码，等等。 -RFID is the acronym for Radio Frequency Identification, or RFID. Often referred to as electronic chips or inductive proximity cards, proximity cards, contactless card