常用pcb库文件，方便进行电路开发，protel99格式的

由C 语言实现的tl549 利用的是KEIL环境已经得到验证-Achieved by the C language using tl549 is KEIL environment has been tested

avr 单片机学习用的 希望有用-avr Singlechip hope to learn useful

代码为单片机与液晶模块的接口电路程序以及显示程序，适用于用单片机实现液晶模块显示的初学者-Code for the microcontroller and LCD module interface circuit procedures and display program for display LCD module with MCU for beginners

4442卡的底层操作程序 AT45D041大容量IC卡 读写程序-4,442 cards bottom procedures AT45D041 large-capacity IC card reader procedures

本代码实现了卡式电话的功能,包括长话市话特话,警告,扣费等一系列功能-This code implements the cassette phone features, including special long-distance local call, then, warnings, chargeback and a series of functions

自己做的一个单片机实验,实现led灯的闪烁-Their own to do a single-chip experiment, led lights flicker realize

ARM程序，基于MT8880的自动打电话程序，在LPC2103开发板上测试成功。-ARM procedures MT8880-based automatic call procedures to test the success of LPC2103 development board.

系统讲解了51单片机,实用于初学者,可以很快入门-system on the 51 microcontroller, in the practical and beginners can quickly entry

针对avr单片机编的精确延时程序，可达1微妙-against avr microcontroller series of the precision delay procedures, up to a delicate

关于89c51驱动tcp/ip的驱动程序。包括了对tcp/ip转换为rs232协议输出-on 89c51 drive tcp/ip drivers. Including a pair of tcp/ip converted to RS232 output agreement