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Re: Cheap Wearable

 From: "Kent Lofley" <>
>Ok.  I found a backplane 486 at eio.com for $47.
>I think that this is a good start for a wearable.

For Reference: http://www.eio.com/hotdeals.htm, it's the "Point of sale"
box on the left.

Looks good, but I would think that power consumption would be high; it
hasn't been designed for lower power consumption.  

I gleamed this from the various pages: 
"The whole thing draws from 2 to 2.5 Amps at the 12VDC input from the
car battery."  ouch! 24-30 watts! Don't expect all-day runtimes.  Would
make a good portable, though!  Definitely carry around a ac wall plug.

Also: "...volume measuring 8.5" x 5" x 3.5". " -- that is about the
right size!

This page also brings up the interesting half-step possibilty of: if
you can't afford a HUD, maybe use this 6" tv display they're talking
about.  Additionally, since it's an ntsc signal, you can always plug
into any other tv you find 8>  Instant presentation mechanism 8>

Hot Shit! $99 for a 6" NTSC/RGB monitor; 240x720 resolution.
1.3-1.7Watts for the display, 4.6-6.0 watts for the backlight. Hm.

Not a bad way to start - it's cheap by comparison! Unless, of course,
someone has circuitry for the kopin display ($75)...

NOTE: the "RGB" output has to be in ntsc scan rates, and is a *digital*
(ttl) connector; 8-color. You can't hook it up directly without a special
video card.

>First thing that I need to do is figure out what kind of hardrive that
>I want.  I was thinking a laptop HD but then I need some adapter so
>that it will work in a desktop machine.  Does anyone know where I can
>get a laptop HD for CHEAP.

on the very same page above, worst case; $30 for their 170 meg ide
drive.  laptop-to-desktop adapters are floating around; about $5, maybe
less.  eio.com ought to have some.

I'm sure somebody has something out there that's cheap and affordable.
Ask your friends, I'm sure they have some old 100-500 meg drives that
they are using as door stops 8>

>Next what kind of display should I use.  I found some LCDS at
>allcorp.com but I don't know what I need to do to get them to work with
>my machine.  Ideas?

raw displays are difficult to work with.  See the aforementioned 6"
display.

   - Kevin

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