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http://school.cnd8.com/vc/jiaocheng/38312.htm

http://www.vckbase.com/document/viewdoc/?id=460

http://topic.csdn.net/u/20080522/20/732ade48-7091-433b-aa04-82258dcba6ee.html

http://blog.csdn.net/xlzxlich/archive/2005/05/28/382692.aspx

remote controller

http://item.taobao.com/auction/item_detail-0db2-1e70c9d2a002c00e72f3f2ba2eb8f6d1.htm

buy dc motor

http://item.taobao.com/auction/item_detail-0db2-a48bf2fcf0f1ae2de619d9e8d23371ee.jhtml?cm_cat=0&pm1=1

http://item.taobao.com/auction/item_detail-db2-6422445b07f1272d9949282feb2c8096.htm

LCM2002

Use it to make something interesting

Android on the board

Microscope photo

microScope

the program.

control board layout finished

and will cost 800RMB for 20pcs

arm11-s3c6410 development board

we will buy one

this would help in i-light project

http://item.taobao.com/auction/item_detail-db1-c980e5a1ddffd17c8c9e9fbecd2a9e28.htm

DLP Projector or LCD Projector

http://www.projectorreviews.com/advice/dlpvslcd/index.php

no rat display of gnd

chrome dict

http://sleepnova.blogspot.com/2009/07/chrome.html

motion control IC

http://www.51zdh.com/product_3.htm

and MCX312 cost 400HKD,
a little expensive.

buy motor and driver

driver

motor

new theodolite control

can now reach the resolution to about 4''
and the performance can be improved by replace a better motor and a better driver

plan for JWY

find a better solution for the JWY.

1. step motor
2. high divider
3. motion control

chip choose:
1. driver - THB6128, cheap and easy to buy
2. motion - TMC428, expensive and hard to buy, find another

if possible, find another better driver for higher divider

步进电机驱动芯片有：步进电机驱动芯片(UM12017、UM12014)完全代替VID6606、VID6608)

还有PMM8713,BY-5064,A3955SB,ULN2003,ULN2803,ULN2804,ULN2824

步进电机控制芯片有：UDN2916LB,TA8435H,TMC428,TMC236,TMC239,PBD3517,PBL3770,PBL3717,SPI-7210M,CIPH9803A,TMC222,等等。

step motor motion controller

need to develop some kind of step motor motion controller,

there are some ic to choose:

TRINAMIC

PMD

but you need to log in to download the data sheet of PMD.

the best choice is:
5 phase step motor
500 divider

but it would be too expensive?

...

led lamp for office

looking for some led lamp for office use today and take a note for it.

cree is a company offers some high performance led chip and lamp product, its website is: http://www.cree.com/

and there is one kind of neutral white color led:

Innovative Package – XLamp MC-E Color

specification:

	Color	Max. Current (mA)	Dominant Wavelength (nm)	CCT	Min. Flux @ 350 mA
XLamp MC-E Color	Blue	700	450-465		8.2 lm
	Green	700	520-535		67.2 lm
	Red	700	620-630		30.6 lm
	Cool White	700		5700K – 7000K	95 lm
	---
	Blue	700	450-465		8.2 lm
	Green	700	520-535		67.2 lm
	Red	700	620-630		30.6 lm
	Neutral White	700		3700K – 4300K	80 lm

coefficient of utilization:

but we want to project the led array image to the desk, then we need a lens, the best solution is one led array plus one big lens, but until now i can not find the similar design on the market, most product will use one lens plus one led, but the design would be too big for our project,
much information can be found on this page: Efficient High Brightness LEDIL LED Lenses
and many types of shape can be projected like the below picture:

and there is some kind of high power led array on the market:

100w LED

...

some kind of led light collector:
i wonder if one large lens can collect light from each led of a led array?

watch something interesting on youbube:

投影技術

看現時的投影技術，基本上都是LCD,DLP,LCoS這幾種，而做到體積小巧的，DLP和LCoS就占大多數了。

LCoS體積最小，不過亮度不夠，一般是10 lumens左右，不知道是不是可以通過提高光源的功率來提高亮度。

DLP由於是利用反射的原理工作，所以提高光源功率就可以把投射亮度提高...

無心情寫，待續。

word中的等寬字體

一直以来，用word编辑文档时，里面的英文字体都是用times new roman ，可有时候会出现这样的情况，上下两排怎么也对不齐，原因是每个字符的宽度不一样，比如，在times字体下，I和L的宽度肯定是不同的。

普通文档也就罢了，如果是要编辑程序，这种现象会让代码显的很不规范。用等宽字体能够解决这个问题，在网上一查，word里的等宽字体大概有这么几种：

BatangChe 、 Courie、Courier New、DotumChe、Fixedsys、GulimChe、GungsuhChe、Lucida Console、Lucida Sans Typewriter、MingLiU、MS Gothic、MS Mincho、Terminal、仿宋_GB2312、楷体_GB2312、隶书、宋体-方正超大字符集、新宋体、幼圆等。

（本段内容摘自网址http://linlei.spaces.live.com/blog/cns!198e1af09f24562!200.entry）