TRF7970A DEMo板固件程序

利用 RSSI值对几何估算区域进行划分，运用改进公式计算出新的未知节点位置。(The geometric estimation area is divided by RSSI value, and the new unknown node position is calculated by the improved formula)

此程序为13.56MHz的RFID底层读写卡程序-procedure for 13.56MHz RFID bottom of the card reading and writing procedures

Low frequency NXP hitag2 encryption cipher This the low frequency NXP hitag2 encryption cipher. The package hitag2.zip contains the following files: hitag2.png - Cipher overview hitag2.c - Source-code-Low frequency NXP hitag2 encryption cipher This the low frequency NXP hitag2 encryption cipher. The package hitag2.zip contains the following files: hitag2.png- Cipher overview hitag2.c- Source-code

采用了射频识别的原理，在STM32编程的基础上，识别ID号(The principle of radio frequency identification is used to identify ID number on the basis of STM32 programming.)

RFID communicate. This is for reading rfid card.

ISO18000-7标准文档，对RfID开发人员有帮助-ISO18000-7 standard document, the developer of RFID has helped

射频和无线技术入门(第2版)，carl J. Weisman著。刘志华 徐红艳 李萍译。清华大学出版社出版。清晰。(RF and Wireless Technology Introduction (2nd edition), carl J. Weisman forward. Liu Zhihua Xu Hongyan Li Ping translation. Tsinghua University Publishing House. Clear.)

rfid系统的matlabsimulink建模及特性分析(rfid systems matlabsimulink Modeling and Analysis)

MFRC522开发板代码、图纸、资料全套内容，可直接做出自己的读卡器

无线收发模块NRF24E1的开发源码，EEPROM下载范例，对有志与无线系统开发的同志应该有帮助-wireless transceiver module NRF24E1 open source, EEPROM Download example, with the right interested in the development of wireless systems should help comrades