omnikey sample app with source

RFID防碰撞算法的研究，以及对其各种算法的仿真，以及改进算法的仿真和比较。(RFID anti-collision algorithm, as well as its simulation algorithms, and improved simulation and comparison algorithms.)

完美替换rc522，自带LPCD低功耗唤醒检卡，待机功耗大概10uA(Perfectly replace rc522 with LPCD with low power wake-up card. Standby power consumption is about 10uA)

nRF2401快速开发系统相关的文档，是公司内部提供的。-nRF2401 rapid development of system-related documentation is provided by the company.

说明：  某宝商家的工具，原本需要注册，自己破解了免注册，PN532红板+ch340的TTL亲测可完美写uid、cuid卡，可进行key破解，可在配置文件写入已知的key，内附使用说明(NFC pn532 uid cuid)

一种无限定位，toa时延定位算法的代码。matlab源程序 希望采纳( | | SCRIPT: simMLE | | PURPOSE: Simulate a relative location system by generating | random measurements and maximizing the likelihood fcn. | After many trials, show the results vs. the Cramer-Rao Bound. | | AUTHOR: Neal Patwari | http://www.engin.umich.edu/~npatwari/ | | REFERENCE: Relative Location Estimation in Wireless Sensor Networks | (N. Patwari, A. O. Hero, M. Perkins, N. S. Correal, R. J. O Dea), | IEEE Trans. Signal Processing, vol. 51, no. 8, Aug. 2003, pp. 2137-2148. | tic Use globals to allow minimization functions access to network info, debugging info. global refDevices blindDevices totalDevices linearRefLocs dhat funcEvals dfuncEvals Basic simulation parameters roomSize = [1,1] Room size, meters gridSize = 5 How many sensors per side refDevices = 4 How many references (must be same length as actualRefLocs) trials = 20 How many inde)

在工作中曾完成的一个NFC读卡器， 主要使用的ST公司的新推出的CR95HF芯片，做板测试已OK。 对于从事NFC开发的人员绝对是一种值得备用的资料。 （附件提供原理图，CR95HF编程手册，驱动CR95HF的C源代码，另包含有 对双接口芯片M24LR64的驱动） CR95HF芯片有如下特点： 标准频率：13.56-MHz 支持多协议：ISO/IEC 14443 A and B，ISO/IEC 15693，ISO/IEC 18092 提供2种标准接口： SPI 和 UART 。 只需简单的7条指令： (Work was done in a NFC reader, the main use of the ST' s new CR95HF chip board test has to do OK. Personnel engaged in the development of NFC is definitely a worthy alternative information. (Annex provides schematics, CR95HF programming manual, driver CR95HF the C source code, and the other contains the dual interface chip M24LR64 driver) CR95HF chip has the following characteristics: standard frequency :13.56-MHz multi-protocol support: ISO/IEC 14443 A and B, ISO/IEC 15693, ISO/IEC 18092 provides two standard interfaces: SPI and UART. 7 simple instructions:)

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.)

天线设计的基本理论介绍。有利于RFID天线设计。(Introduced the basic theory of antenna design. Conducive to RFID antenna design.)

无线射频识别技术(RFID)是自动识别技术的一种高级形式。随着信息化技术的不断发展，无线射频识别技术(RFID)的应用也越来越广泛。本书主要介绍了无线射频识别技术的基本工作原理和具体应用，并列举了大量的应用实例，如动物识别管理、配送中心管理、矿井管理、停车场管理、军事物流运用等-Radio frequency identification technology (RFID) is the automatic identification of an advanced form of technology. As information technology continues to develop, radio frequency identification technology (RFID) applications are increasingly widespread. This book introduces the radio frequency identification technology, the basic working principles and specific applications, and listed a large number of application examples, such as animal identification management, distribution center management, mine management, car park management, the use of military logistics

采用RC500读卡模块（驱动兼容RC522）通过SPI与单片机通信。 进行RFID射频卡的读写，包括常见的M1卡 S50、S70以及 复旦微电子的CPU卡FM1280。