nRF2401芯片的各种资料以及pcb板图吐血推荐。

非接触式IC卡读写器,Mifare 1非接触式IC卡读写核心模块MCM2-Design of Mifare Touch- Free IC Card Reader

rc500 c语言库函数，对RC500的开发提供了捷径-rc500 c language library functions, the development of RC500 provides a shortcut

51单片机控制的红外遥控的接收部分的程序，可实现解调、解码和现实的功能，很实用！-51 MCU controlled by infrared remote control receiver part of the process, can be realized demodulation, decoding and realistic features, very practical!

dirving SDRAM PC133 with BASCOM AVR(up to 512Mbit or 64MByte)

微机键盘和单片机的接口程序,采用了上升沿触发中断服务程序,下降沿触发中断服务程序.-computer keyboard and microcontroller interface procedures using the rising edge trigger interrupt service procedures, falling edge triggering a break in service procedures.

液晶屏显示程序，主要对各按键处理做了很好的处理，可随意改动各按键，通讯采用MODBUS ASCII 可以控制台达变频器的起停及速度控制-LCD display program, the main keys to deal with a very good, may be arbitrarily changed the keys, communications using MODBUS ASCII converter can console cease and the speed control

基于等精度测频原理，设计的等精度频率计，测试结果很精确，达到0.01HZ。-Such as the accuracy of frequency measurement based on the principle of design, such as precision frequency meter, test results are accurate to 0.01HZ.

C51源代码，详细单片机C语言源码！包含大量C语言源程序。-C51 source code, detailed single-chip C language source code! Contains a large amount of C language source code.

AVR GCC编程参考手册，非常适合做开发参考-AVR GCC programming reference manual, is well suited to do the development of reference