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Re: Finaly a cheap possible wearable solution?

From: Lance Nanek <>
Date: Sun, 23 Feb 2003 19:46:27 -0500

Most of the wearables I've seen so far are these big clunky things that 
barely even try to conserve space, use laptop hard drives, etc.  So I 
guess a mini-itx solution wouldn't be out of order.  However, IMHO, if 
your just aiming for that there is no reason to waste time piecing 
together low volume hardware and your own power system and what not.  
I'd recommend just repackaging an obsoleted laptop/subnote (which can be 
had for a song, especially if the LCD is broken) and getting the same 
end result.

The thinkpad I used for this had a small bar of a motherboard, much 
smaller than the keyboard even, and made a tidy package with the 
keyboard/LCD/cd-rom/casing all removed and the battery/hd rearranged.  
Booting through the error codes was the only hurdle really and after 
that you have a wearable ready for whatever input and output 
experimentation you want (playing around with microjoystick to keyboard 
mappings and typing and reading on the go with a bought HMD in my case).

I just thought this shortcut worth mentioning in case it's applicable to 
you.  I hate seeing too much work going into the 'monstrously huge' form 
factor wearables so many people custom build when its easy to just use 
something premade of the same size.  I'd rather see more custom HMDs 
like you concluded with or wearable software apps, etc.

Regards,
Lance Nanek

Konstantin V. wrote:

 > Hi guys/gals. Im very interested in the wearable computing and for 
some time I was interested in reading about it, because pc104 parts are 
kind of costy and unavailable were I live (Mexico).
 >
 > I kind of interested in building a wearable for myself but it needs 
to be a cheap solution or mid range. Interestingly enough EPIA's 
mothereboards and particulary the Eden 5000 model looks kind of apealing 
for a wearable, with footprint of 170x170 mm it is very small and its 
sells for a merely 100 USD, Integrating 500 MHz Cyrix CPU 
VGA/TV-OUT/LAN/Sound/USB and more. I think Linux runs well enough on 
this mobo but Im not totaly shure, the main website is offline and I 
cant access it www.viavpsd.com , there is other sites like 
http://www.viaarena.com which discusses Via's Mini-ITX plataform. One 
link to Epia M series which is not the EPIA 5000 that I'm talking about 
but you can apritiate the size of Mini-ITX format 
http://www.viaarena.com/?PageID=187
 > I mean compare the functionality of EPIA 5000 board to an existing 
PC104 or SBC board and then compare prices. Im not into embedded and 
dont need a watchdog or data adquisition, just a fun little system to 
carry around with PIM/Word processing/maybe video capture(but that later)
 >
 > Now the TV-out NTSC/PAL is important because a cheap Head Mounted 
Display could be a Kopin CyberDisplay320, a monocolor 320x240 display 
costing about 60 USD wich could be driven by a Motorola chip part number 
MCVVQ111, the documentation for the this display driver is explains how 
to build a prototype board and this way integrating it into a very nice 
and cheap Head Mounted Display. Here is a link to a MageForge article 
about a covert CyberDisplay in sunglasses , courtecy of Mircea
 >  
https://securehost34.hrwebservices.net/~magefor/cgi-bin/view/Main/SunGlasses
 > (The issue here is to get the MCVVQ111, I havent seen it on sale 
anywhere)
 >
 > I know it is low resolution and monocolor but I think it is a viabe 
solution and it will be light and cheap, also low power consuming, and 
at last but not least it is very very covertable.
 >
 > Thiking about power consuming, here is a mini power supply from  
http://www.mini-box.com/pw-60.htm wich is a very small power supply unit 
that fits directly in EPIA motherboard (u can download a video of the 
mounting process wich is simple but ilustrative), the supply uses 12 DC 
input and regulates the normal ATX psu outputs, proving 1 connector for 
a HD + 1 connector for Floppy and a small 5 volts connector.
 >
 > Now if anyone would calculate the amount of power drained by this 
motherboard +  (put usual hardware that goes in the mobo like notebook 
HD + Memstick ) +  HMD + Input devices (Twiddler or mouse or maybe a PDA 
keyboard)  and evaluate how many battery packs (Li-Ion) would be needed 
to power the whole system for a reasonable amount of time, dont know, 
maybe 5 hours continuosly.
 > Would it be 'wearable' ?
 >
 > What do you think about it?
 >
 >
 > Do you Yahoo!?
 > Yahoo! Tax Center - forms, calculators, tips, and more

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