数码管的显示操作，同时也有按键操作程序，通过单片机控制可以直接进行显示

在有线电视中实现程控有源滤波器设计。为了充分利用设备和传输线,需要一种具有频率选择的网络―滤波器,将同一线 路上不同的信号分开,在电视机中也需要不同的滤波器(即选择有用信号,抑制无用信号) 。下面利用8051 单片机与12 位分辨率的DAC1208 数模转换芯片相结合的系统实现时间常数可程控有源滤波器设计,阐述了硬件结构与软件设计-In cable television in the realization of program-controlled active filter design. In order to make full use of equipment and transmission lines, the need for a frequency selective network- filter, the same lines separate different signal in the TV also requires a different filter (ie, choice of useful signals and suppress unwanted signals). Following the use of 8051 and 12-bit resolution digital-to-analog converter DAC1208 chip combining system time constant can be program-controlled active filter design, the hardware structure and software design

使用51实现的高速电流下降沿记录，-use to achieve the high-speed current descending records,

实现T9693C 液晶的51 C源程序 包含划线, 字符,图形,影像功能-T9693C LCD realize the source code contains the 51 C line, characters, graphics, video capabilities

用于网络馈电的c51程序-network feed for the decoder procedures

编程爱好者，自编C程序跑灯，控制单片机P1口，逐个点亮心中的明灯-Programming enthusiasts, self-compiled C program running lights, control Singlechip P1 mouth, one by one lit the hearts of the light

这是一个实现PC上位机控制下位机（单片机）通过GSm模块发送短信的源代码。-This is a PC-host computer under the control of bit machine (SCM) to send text messages via GSm module source code.

C51写的Zi2020 FM发射模块控制代码！-C51 wrote Zi2020 FM transmitter module control code!

最简单的TCP协议栈，只包括ICMP,ARP,TCP/IP等实用功能

ds1302的单片机程序实现，适用51的时钟芯片-ds1302 the SCM program, the application of 51 clock chips

4*4扫描键盘,通过键值通过4个数码管显示出来.-4* 4 Scanning keyboard, through key through four digital tube display.