通过单片机对HT9200进行控制访问，实现电话的DTMF拨号功能

模拟串口，点阵显示固定八字，51单片机平台-Serial simulation, a fixed eight-character dot matrix display, 51 single-chip platform! ! !

好东西，大家快来下，值得一看的东西，受益匪浅

单片机tcpip通讯-Single-chip communication tcpip

一个多媒体液晶显示器内部控制器(主芯片为:7301)的源程序(KC51-an internal multimedia LCD Controller (Controller chip : 7301) of the source (KC51

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-Motor speed is a microcontroller or DSP hardware platforms, operating mechanism with electrical design corresponding algorithms, and to software implementation

KEYCONTROLLED KEYCONTROLLED-KEYCONTROLLED KEYCONTROLLED KEYCONTROLLED

C51的45D驱动程序-C51 45D Driver

单片机的　液晶显示电冰箱稳控器　Ｃ语言的　用１６０２显示，ＤＳ１８Ｂ２０测温-Single-chip LCD controller C refrigerator stable language to use 1602 display, DS18B20 temperature

利用L293D驱动步进电机，正转，反转，调速等-Make use of stepper motor driver L293D is transferred, reverse, speed control, etc.

用C51编写的现场总线多机通讯程序，这个程序调试通过，现在应用在微机数据采集系统中。