measure coin used 89c52, which use two Timers

一个采用C8051F020芯片实现的流量计控制系统源代码，包括了对C8051F020内部AD和DA的编程、共12个LED（采用74HC195)的编码驱动编程等。-A C8051F020 chip using the flowmeter control system source code, including the internal C8051F020 programming AD and DA, a total of 12 LED (using 74HC195) encoding-driven programming.

这是我最近写的一些单片机的简单的模块， 用在韦福仿真机中，里面的模块注释清晰，便于阅读。-which I have recently written some of the simple microcontroller module, the use Weifu simulator, inside the module Notes clear and easy to read.

C51与HT9170和HT9200接口程序(双音多频)-C51 with HT9170 and HT9200 interface program (DTMF)

LT_1B msp430开发板例子程序－TA_18

DP_51PRO实验仪图形液晶显示实验。先在屏幕上的随机位置显示随机数字(0--9)， * 然后调用画直线函数以屏幕中心为中点画对称的直线，最后显示一个简单的窗口。-Experiment DP_51PRO graphics liquid crystal display experiment. First in a random location on the screen shows random number (0 9),* then calls the function to draw a straight line in the screen center line stipple symmetry, and finally shows a simple window.

EMC的开发库 是单片机性价比高的选择 提高快速开发-EMC microcontroller development libraries are cost-effective option to enhance rapid development of high

步进电机的工作原理，实现正转及逆转的方法-The working principle of stepper motor to achieve positive change and reversal of the method

利用汇编语言，设计一个读取环境中的温度并显示出来的系统-The use of assembly language, design a reading environment temperature and display system

lcd0802的测试程序-lcd0802 test procedures

IC: NT39102的彩屏的驱动，拿来可用，我项目中的源码-IC: NT39102 the color of the driver, use available, I project the source