是一个利用单片机C语言生成各阶M序列的程序，还有发送程序

用c语言实现PID算法的程序，在PID算法的使用过程中十分有用，只要自己修改一下参数，即可用于不同的控制领域。-Used to achieve PID algorithm c language procedure, use of the PID algorithm process very useful, as long as their own tinkering parameters, can be used for different control.

一个很好用的密码锁程序，MCU用的是EM78P447，经试用非常可靠，提供给想学习EMC的用户使用，如有需要原理图的请发邮件到micheal23@sohu.com,注：需注明LOCK原理图-good with a password lock procedures, the MCU is EM78P447, tested very reliable, available to want to learn EMC users, if necessary schematic please send mail to micheal23@sohu.com, Note : LOCK be annotated diagram

基于easyarm2200的混合HID设备（鼠标+键盘）-Easyarm2200 based on a mixture of HID devices (mouse+ Keyboard)

E2PROM 24c01 c02 程序-E2PROM process 24c01 C02

时钟芯片DS1302和在12864lcd上显示当前时间-DS1302 clock chip and display the current time 12864lcd

44780字符液晶屏驱动演示程序总线方式-44,780 Character LCD Driver Bus Demonstration Program

proteus与单片机的联合仿真教程，希望对大家有所帮助。 -Proteus and MCU joint simulation tutorial, I hope all of you to help.

基于AT89C52的单片机4X4键盘原理图，可用于小系统板-Based on AT89C52 microcontroller 4X4 keyboard schematics, can be used for a small system board

software proteus 7.2 for design the circuit

高速PCB设计指南,一本很有用的画线路板的书.-High-speed PCB design guidelines, a very useful circuit board painting book.