51 keyboard scanning procedures, with the original scan different ways, this app...

用单片机16F877A外接MAX518实现正弦波输出-16F877A MCU external realize sinusoidal output MAX518

电梯的51单片机控制资料(电路图+工程代码)-51 Singlechip elevator control data (circuit diagram+ Project code)

本程序实现了对MOTOROLA08AB32单片机EEPROM的访问，可自动配置波特率，实现了对EEPROM的读、写和擦除操作。-This procedure MOTOROLA08AB32 realize single-chip EEPROM of the visit, can automatically configure the baud rate, to realize the EEPROM read, write and erase operations.

lcd显示程序,LCD菜单程序,可供学习LCD者使用 -lcd display program, LCD menu program for learning the use of LCD

基于8051单片机的GSM报警系统源代码，经测试可用，用KEIL c51 编译-8051 based on the GSM alarm system source code can be used have been tested, using KEIL c51 compiler

本程序是并口FLASH 39sf040读写程序,并给出调用函数.-This procedure is a parallel port to read and write FLASH 39sf040 procedures, and gives call function.

可编程逻辑器件在数字式抢答器中的应用 -Programmable logic devices in digital Answer Explorer Application

讲述高速数字电路的设计和布线原理，有很多具体的技巧和经验-on high-speed digital circuit design and wiring principle, there are many specific skills and experience

电子密码锁程序，可以密码在线修改，延时锁定，密码重置等功能 -Electronic password lock program, you can change your password online, delay lock, password reset and other functions

硬盘接口线的定义，作单片机的-line drive interface definition, look for SCM