National Undergraduate Electronic Design Contest winning entries selected :1994

2009年全国大学生电子设计大赛F题--数字幅频均衡的功率放大器-2009 National Undergraduate Electronic Design Contest F title- the number of amplitude and frequency balanced amplifier

SHT10数字温湿度传感器，可以直接与单片机接口，接口简单，提供c源代码程序-SHT10 digital temperature and humidity sensors, can interface directly with the single-chip microcomputer, interface is simple, to provide the source code program c

树是由n(n≥0)个结点组成的有限集合T。n=0的树称为空树；对n>0的树，有:(1)仅有一个特殊的结点称为根结点，根结点没有前驱结点；(2)当n>1时，除根结点外其余的结点分为m(m>0)个互不相交的有限集合T1,T2，…，Tm，其中每个集合Ti本身又是一棵结构和树类似的子树。 -Tree is n (n ≥ 0) consisting of nodes finite set T. n = 0 of the tree known as the empty tree for n> 0 of the tree, there is: (1) has only one special node called the root node, root node there is no precursor node (2) when n> 1 when, with the exception of root node except the node is divided into m (m> 0) a finite set of mutually exclusive cross-T1, T2, ..., Tm, one of each set Ti is itself a structure and are similar subtree tree .

一个简易的JTAG调试小板的设计原理图，可以用于ARM9和ARM7-a simple JTAG Debugging small plate design diagram, which can be used ARM9 and ARM7. .

基于GPS的小型移动机器人制作书籍，里面介绍的很详细，是美国某大学实验室的内部书籍-the very small moving robot

mathlab for image processing 2D, DFT, FFT etc.

本文介绍一种以CPLD[1]为核心、以VHDL[2]为开发工具的时间控制器，该控制器不仅具有时间功能，而且具有定时器功能，能在00：00～23：59之间任意设定开启时间和关闭时间，其设置方便、灵活，广泛应用于路灯、广告灯箱、霓虹灯等处的定时控制。-This article describes a CPLD [1] as the core, VHDL [2] for the development of tools for time controller that features not only has the time, but with the timer function, can be between 00:00 ~ 23:59 arbitrarily set to open time and closing time, and its convenient, flexible, widely used in street lamps, advertising light boxes, neon lights, etc. The timing control.

QT2410开发板全部电路图，对做嵌入式硬件设计的朋友会有一定的参考价值。-Schematics for QT2410 development board, would be a good reference for those who makes hardware design on embedded system.

initial information about sine wave generation

自动化应用－－直流电动机和交流发电机控制系统设计，环境为MATLAB-automation applications-- DC motor and alternator control system design environment for MATLAB