参数整定，用在自动控制系统PID调解中。 代码为实际项目验证过。...

一个可调小时分钟的数字钟系统，先是在液晶屏上，显示开始为00：00：

sd卡的程序，上面记录了SD卡的详细读卡写卡方式，适合51单片机或者其他-sd card procedures, the above records the SD card reader to write in detail the way cards for 51 single-chip or other

电动车里程表,安装在自行车上,能显示当前速度,显示总里程数,可以用来做别的,抛砖引玉-Electric vehicle odometer, installed on the bike, can display the current speed, showing the total mileage that can be used to do anything else, start

通过51单片机产生不同频率的信号，在喇叭上产生不同频率的声音信号，实现不同音乐播放-Through 51 different single-chip frequency signal generated in the speaker s voice signals at different frequencies, different music player

U盘(实际是USB SD卡读卡器)的制作方案。 硬件构成：ATmega168+PDIUSBD12+SD 内附GCC源码和原理图。 开发环境是AvrStudio4.13 b528 + WinAVR200701-U disk (actually USB SD card reader) production program. Hardware: ATmega168+ PDIUSBD12+ SD containing GCC source code and schematics. Development environment is AvrStudio4.13 b528+ WinAVR200701

mifare 读卡器weigant输出有kei uvision打开！-MIFARE reader weigant output is Kei uvision open!

这是用AT89C2051单片机实现模数转换的源程序，程序由汇编语言编写-This is achieved using AT89C2051 mode conversion of the source, procedures prepared by the assembly language

《单片机原理与实用技术》第10章-"SCM principles and practical technology," Chapter 10

AVR的旋转编码器解码程序。可以判断正反向。-AVR of the rotary encoder decoder program. Can determine positive and negative.

基于18B20的多路温度采集系统-18B20-based Multi-channel temperature acquisition system based 18B20 Multi-channel temperature acquisition system based 18B20 Multi-channel temperature acquisition system based 18B20 Multi-channel temperature acquisition system