Re: [Olpc-Haiti] Need in Haiti: inexpensive portable projectors forOLPC/XO classrooms

2010-02-03 Thread John Rigdon
I have not seen the XO, but I think we should be rather thinking about these 
new cheap netbooks for these other tasks and use the XO for what it is 
designed.  I am now evaluating a netbook I bought on Ebay for $79 and another 
that is priced at $139 on Ebay.  These types of machines can be configured for 
Administrative use and to do these other things.

John Rigdon



From: Adam Holt 
Sent: Wednesday, February 03, 2010 1:28 PM
To: Support Gangsters ; olpc-ha...@lists.laptop.org ; IAEP ; Devel's in the 
Details 
Subject: [Olpc-Haiti] Need in Haiti: inexpensive portable projectors forOLPC/XO 
classrooms


WavePlace and other Haiti Education efforts keep asking me the same thing, in 
NYC and elsewhere--who can answer:
How can in-classroom (and out-of-classroom?!) cheap portable overhead 
projectors be rigged to XOs -- by hook or by crook -- and what 
models/arrangements are best?

Aside from this wonderful home-made prototype, that unfortunately overheats, 
what's achievable?
http://blog.laptop.org/2008/11/16/hardware-hacking-first-pass-at-an-xo-projector/

Is the following (control/display your XO-computer from a non-XO PC or Mac or 
Linux box) the most viable approach?
http://wiki.laptop.org/go/Remote_display

Could hacking an on-board VGA port realistic for XO-1's (to an external VGA 
monitor or projector) be made into something more than a gimmick -- with 
broad(er) classroom potential?
Even if presumably impossible with upcoming XO-1.5 laptops?

What software approaches  preferred Sugar Activities make kids/teachers 
project presentations shine?  EG. check out Walter Bender's presentation here 
using TurtleArt:
http://www.dailymotion.com/video/xaquec_sugar-presentation-for-open-edge-20

Appeal for Past Experiences/Promising Approaches:
Please reply to the olpc-ha...@laptop.org mailing list, digging deeper than the 
above mostly-2008 pages wherever we can expand PowerPoint (and hopefully far 
superior) options for Haitian classrooms/projects/teachers...THX






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Re: [Olpc-Haiti] Need in Haiti: inexpensive portable projectors forOLPC/XO classrooms

2010-02-03 Thread C. Scott Ananian
On Wed, Feb 3, 2010 at 1:51 PM, John Rigdon jrig...@researchonline.net wrote:
 I have not seen the XO, but I think we should be rather thinking about these
 new cheap netbooks for these other tasks and use the XO for what it is
 designed.  I am now evaluating a netbook I bought on Ebay for $79 and
 another that is priced at $139 on Ebay.  These types of machines can be
 configured for Administrative use and to do these other things.

Agreed. There's a new breed of extremely miniature projectors which
might be well-suited, for example:
  http://www.google.com/search?q=miniature+projector
  http://blog.laptopmag.com/mini-projector-face-off-3m-mpro110-vs-dell-m109s

These are priced at about 1.5x the cost of an XO, and combined with
the VGA output from a schoolserver, would probably make excellent
accessories for a classroom.

There's no real need to use the new ultra-mini projectors in most
classroom situations, something like
http://www.amazon.com/Torpedo-Entertainment-Game-Projector-BLACK/dp/B0033M5NXQ/
might work as well.  Note that the primary expense for a projector is
likely to be replacement bulbs.

I also wonder if
http://www.amazon.com/Porta-Trace-Mini-Sketch-5x-Opaque-Projector/dp/B000A3E2T2
might work, if just placed on an XO screen.  There might still be heat
issues, but it's cheap enough that an experiment might be warranted.
 --scott

-- 
 ( http://cscott.net/ )
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Re: [Olpc-Haiti] Need in Haiti: inexpensive portable projectors forOLPC/XO classrooms

2010-02-03 Thread Bert Freudenberg
On 03.02.2010, at 11:51, C. Scott Ananian wrote:
 
 
 I also wonder if
 http://www.amazon.com/Porta-Trace-Mini-Sketch-5x-Opaque-Projector/dp/B000A3E2T2
 might work, if just placed on an XO screen.  There might still be heat
 issues, but it's cheap enough that an experiment might be warranted.
 --scott

That's a cute idea! Needs to be larger though - the XO's screen is 6.0x4.5 
inches, and this one only sees 3.5x3.5. The middle one (5x5) is still to small, 
the big one (7x7) would fit but is already close to the XO's price itself. 
Worth a try though ...

http://www.gagneinc.com/PortaTraceTrace-master.html

- Bert -


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