This is a process pid to complete the calculation and control process PID

单片机的编译工具 强烈推荐使用-SCM build tools strongly recommended!

一个新颖的自动调节匹配电阻阻值器，内有原理图,可供在家参考。-A novel resistance to match the automatic adjustment device, with a schematic diagram for reference at home.

AT24C02EEPROM C语言子程序-AT24C02EEPROM C language subroutines

Can convert midi to rtttl

实现485口单相表的超表，亲自测试，可以使用-485 single-phase form to achieve super-table, you can use it.

使用键盘上的上、下、左、右四个按键，可以分别控制led1,2,3,4, 每个LED 对应的Port 请参考“实验平台介绍”说明文档。要求按下 上面提到的四个按键中间的一个按键后，该按键对应的led 被点亮，持续1 秒钟以后led 熄 灭。-Use the keyboard on the upper and lower, left, and right buttons, can control led1, 2,3,4, each LED corresponding to the Port, please refer to " experiment on" documentation. Requirements of the four above-mentioned press the middle button of a button, the button that corresponds to being light led, continuous 1 second later led out.

STC12C5A60S2 具备一般51单片机不可企及的高性能，有片内ADDA，速度是一般51的8倍！-STC12C5A60S2 high speed,low price, with ADDA in chip!

单片机与计算机通讯源程序,含头文件,说明,本人亲自试过.-Single-chip communications and computer source code, including header files, annotations, I personally tried.

时钟程序,适用于80c51单片机的开发学习，代码简单易懂！可移植性强！-time

这个程序利用89S51演奏生日快乐的歌曲 */-This procedure performed using 89S51 Happy Birthday song* /