at89c2051制作的超声波测距源程序，经本人检测程序无误，测距精度在10CM以内...

这个文件是ATMEGA8的实验板原理图，大家可以下载，在我们公司已经使用，至今效果还可以，大家下载。-This document is ATMEGA8 schematic diagram of the experimental board, everyone can download, in our company have been used and the result also can download the U.S..

非常方便使用的ds1302程序。使用时，只需调用5个函数，即可完成1302的初始化，读写等-Ds1302 is very easy to use program. Use, simply call the 5 function, 1302 to complete the initialization, reading and writing, etc.

基于C51搭建的温度控制系统的程序，PID控制。-C51-based temperature control system set up procedures, PID control.

基于单片机的AD转换器，可以用proteus进行仿真-The AD converter based on single chip, you can use proteus simulation

电机驱动电路 提供了H桥电路设计的几点思路和PWM的实现方法以。-Motor drive circuit provides the H bridge circuit design ideas and ways to realize the PWM.

是一个关于C51和18B20的测温程序,大家可以参考一下.-Is a study on the C51 and the temperature 18B20 procedure, we can reference.

C8051F9XX单片机SMBUS示例程序-Singlechip C8051F9XX SMbus sample programs

Proteus的串口仿真应用，经本人测试，非常不错！-Serial Proteus simulation applications, as I tested, very good!

一个比较通用的行列键盘程序,c语言的-a more generic keyboard ranks procedures, c language

脉冲测速代码。在51单片机上使用。可用于电动机。-Pulse Speed code. 51 SCM in use. Can be used in electric motors.