电机调速是单片机或DSP硬件平台结合电机运行机制设计相应算法，并以软件实现...

利用单片机定时计数器，测量信号频率： 利用单片机定时计数器，测量信号频率-The use of single-chip timer counters, measuring signal frequency: use of single-chip timer counters, measuring signal frequency

51单片机可在线编程多功能实验板使用手册 内附多个实验程序（供初学者参考）-51 Single-chip can be online programming multi-function board user manual containing a number of experimental procedures (for beginners reference)

新手关于单片机的-newcomers on the MCU

基于51单片机实现UART通信 SPI通信 和IIC通信 -Based on 51 single-chip UART communication realize SPI and IIC communications communications

8路数字电压表,有过流保护,过载保护-8-way digital voltage meter, has over-current protection, overload protection

包括了基于网络芯片8019的单片机源程序和pc端的网络程序（VC++6.0），上述程序均被调试通过，可以直接使用-Including Web-based 8019 microcontroller chip and pc source network client program (VC++6.0), the above testing procedures were adopted, you can directly use

4×4矩阵键盘，当我们按那个键时吧键值显示在数码管上，并把建值发送到PC机；-4 × 4 matrix keyboard, when we press that button when you key in the digital tube display, and to build value is sent to the PC machine

LCD1602+DS1302显示时钟！已经通过实物测试！可以放心下载-LCD1602+ DS1302 display clock! Have passed the physical test! Can rest assured Download

使用protel99软件编辑的原理电路图，希望对各位有助于电路图的学习和开发-The use of the principle of circuit protel99 software editor, in the hope you will help the study and development of circuit