直流电机调速， 直流电机调速， 直流电机调速。

easyarm1138用c语言开发的液晶lcd12864串行口显示-easyarm1138 c lcd12864 chuanxing

VB与S7200的PPI通信-VB and the PPI communications S7200

单片机c语言 初学者有用 有例子哦-SCM c language for beginners there are examples of useful oh

source code for avr

单片机控制160160LCM液晶，C语言，demo-SCM control 160160LCM LCD, C language, demo

用C51单片机实现的无线数据传输例程,注意此程序为发送端程序,需要接收端给予配合-MCU with C51 wireless data transfer routines and procedures to the attention of this software, the need to cooperate receiving end

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?

基于51单片机的公交车报站系统程序 基于51单片机的公交车报站系统程序-Based on 51 MCU bus stop announcement system program

一个以PDIUSBD12为USB控制器件的应用例程。-PDIUSBD12 a USB device control routines.

ARM程序，2*2键盘功能，程序可扩展成3*3或4*4的键盘，在LPC2103上测试成功。-ARM procedures, 2* 2 keyboard functions, procedures can be extended into a 3* 3 or 4* 4 keyboard, to test the success of the LPC2103.