AT89S52单片机中数码管的循环显示的实现例子，可以让大家清楚看到这么用数码管来显示数字...

以比较匹配A达到时交替输出高低电平及写入其维持 时间常数之方法实现脉宽调制输出-to compare A match reached the turn at the high output and low-level maintenance time into their methods to achieve constant PWM Output

讲述了PID的 控制方法和性能指标，技术参数，注意事项。-About PID control methods and performance indicators, technical parameters, note.

经典C程序100例，比较详细，应该对大家提高有所帮助-100 cases of classic C procedures, a more detailed and should be helpful to all of us to improve

包含常用液晶的C51驱动程序，如SED1335驱动320x240图形液晶驱动演示程序，ACM-12864汉字液晶显示驱动程序，44780字符液晶屏驱动演示程序总线方式，1602液晶显示驱动等-C51 contains the commonly used liquid crystal driver, such as 320x240 graphics driver SED1335 LCD driver demo program, ACM-12864 Chinese characters liquid crystal display drivers, LCD driver 44780 characters Bus Demonstration Program, 1602, such as liquid crystal display driver

4*4矩阵键盘（行扫描法） （S51环境）-4* 4 matrix keyboard (line scanning) (S51 environment)

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５１单片机ａｓｍ串口液晶显示器通信程序，已通过测试-51 SCM asm LCD serial communication program, has passed the test

介绍了在使用pdiusbd12进行usb开发时常遇到的问题以及回答。-Describes the development of the use of pdiusbd12 to usb problems and to answer questions from time to time.

单片机C8051加无线模块NRF24l01，实现温度传感器数据的采集和无线传输-C8051 MCU plus wireless module NRF24l01, to achieve the temperature sensor data acquisition and wireless transmission

16*16点阵LED测试代码，为个人编写，主要用来测试点阵屏的好坏。-16*16 LED DOT display test