利用52单片机通过8254定时器实现控制电机的PWM调速程序，可实现开始，停止，加速，减速。

电池供电单片机系统延长使用时间的几点有效措施-battery-powered SCM system to extend the use of time a few effective measures

用ASM语言编写的二十进制转换代码.有价值-ASM language with the two Decimal code. Value

抢答器，可以实现很大的功能，比如，计时、抢答，锁定-qiangdaqi

MSC51单片机学习点燃LED，C51编程-MSC51 Singlechip learning lit LED, C51 Programming

能够掌握单片机的管脚功能，简单了解并应用单片机作东西。-to grasp the pin MCU functions, simple to understand and use things for the MCU.

汇编语言写的，支持读取wav并将波形显示在屏幕上，是自己多年以前的一个课程设计的作业程序，希望对朋友有所帮助-compilation of the written language, and will support wav read waveform display on the screen of their own years ago a curriculum design of the process, and I hope to help a friend

完整的实现RS232与TCP/IP网络协议的转换-Realize the full RS232 and TCP/IP network protocol conversion

单键遥控器的设计 有程序加说明 并且功能强大-single-button remote control procedures for the design description and powerful

51联合adc0804测电压程序。可以测0`5V电压,精确到千分位4位数码管显示。-51 Joint adc0804 voltage measurement procedures. 0 `5V can be measured voltage, accurate to four spaces per thousand digital tube display.

该程序为51单片机做的频率计,可计频率可达999 HZ.-The program for 51 single-chip to do the frequency meter may include frequency up to 999 HZ.