AT89S52 with character

台湾凌阳十六位单片机简单的A_D D_A的程序，对初学者有用。-Taiwan Sunplus 16 SCM A_D D_A simple procedure, useful for beginners.

在做项目（工程）的时候，我们经常要用到比较多的按键，而且IO 资源紧张， 于是我们就想方设法地在别的模块中节省IO 口，好不容易挤出一两个IO 口，却 发现仍然不够用，实在没办法了就添加一个IC 来扫键。一个IC 虽然价格不高， 但对于大批量生产而且产品利润低的厂家来说，这是一笔不菲的开支! 那，我们能不能想到比较好的扫键方法：用最少的IO 口，扫最多的键？可以吗？-Doing the project (engineering), we often use the relatively large number of keys, and the IO resource constraints, so we are trying to save in another module IO ports, finally out of one or two IO ports, only to find is still not enough there is really no other way to add an IC to sweep on the keys. Although the price of an IC is not high, but low profits, high-volume production and product manufacturers, this is spending a lot of money! That, we can not think of a better scan key method: with a minimum of IO ports, scan Most of the keys? OK?

C:CypressUSBExamplesFX2重要的实验程序cypress官方提供模版ezusb-C: CypressUSBExamplesFX2 important experimental procedures cypress official template ezusb

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.

单片机at89c5x资料，绝对超级，是很好的，讲的非常详细！-Singlechip at89c5x information, absolutely super, is a very good, very detailed talk about!

我最近找的一些关于ADS1252的资料,还有源码,我已经编译过啦-Recently, I find some of the information on the ADS1252, and the source code, I have compiled Matata

卫星寻址，这个软件貌似可以跟卫星连接并寻找地址-Satellite addressing, the software seems to be able to find addresses with the satellite connection and

单片机音乐编码软件 单片机音乐编码软件-linhloihoiuhou

PTR8000的一个调试程序，功能还可以。-PTR8000 a debugger, functions can also be.

步进电机绝对零位控制装置 步进电机绝对零位控制装置 步进电机绝对零位控制装置-Stepper motor control unit absolute zero absolute zero stepper motor stepper motor control device controls the absolute zero absolute zero stepper motor stepper motor control device controls the absolute zero