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利用8051单片机驱动蜂鸣器，实现音乐发声功能。-8051 drivers to use buzzers realize music vocal function.

AVR microcontrol ,the program is a buzze speaker

华为的印刷电路板（PCB）设计规范，程序编写规范等-Huawei’s printed circuit board (PCB) design specifications, programming specifications, etc.

利用动态扫描和定时器1在数码管上显示 出从765432开始以1/10秒的速度往下递减 直至765398并保持显示此数，与此同时利 用定时器0以500MS速度进行流水灯从上至 下移动，当数码管上数减到停止时，实验 板上流水灯也停止然后全部开始闪烁，3秒 后（用T0定时）流水灯全部关闭、数码管上 显示出"HELLO"。到此保持住。 设晶振频率为12MHz。-The use of dynamic scanning and Timer 1 in the digital control to show from the beginning of 765,432 to 1/10 seconds until the speed of descending down 765,398 and maintain display this number, at the same time the use of Timer 0 to 500ms the speed of light from the flowing water to Under the move, when reduced to a few digital tube stop, the experiment on-board water stop and then all the lights started to flicker, 3 seconds later (T0 regularly used) closed water lights, digital tubes show

利用串行驱动数码显示每位从0显示到F，到灭循环显示，要求1秒更新一次。-drive using serial digital display shows each from 0 to F, to eliminate cycle, a request updated seconds.

SM903报警主机源程序 直接烧写即可-SM903 alarm host source can be directly Shao Xie

645规约集中抄表源代码，运用汇编语言开发编程-Statute of the concentration of 645 meter-reading source code, the use of assembly language programming development

采用dspic30f2010的变频器核心驱动程序,程序可以实现正转/反转,频率设定,保护等-the inverter used dspic30f2010 core drivers, procedures can be achieved is to/inversion, frequency creation, protection

液晶驱动C程序,SSD1783芯片,液晶型号1760B0-LCD-driven C program, SSD1783 chips, liquid crystal models 1760B0

单片机控制步进电机，有详细的电路图和源代码，希望大家喜欢-Single-chip stepper motor control, has detailed schematics and source code, I hope everyone likes