I'm changing the subject of this thread...
Is there a standard for the size and shape of small motherboards? When I
got my pi, it wasn't even standard for different versions of the pi.
When you ordered a case, you had to know which revision of the raspberry
pi you had.
What we need is to get one of the dozens of people trying to design the
next break-through braille display to give up on that and design us a
case that can be printed on a 3D printer. Seriously, how often do you
hear about another group of well-meaning grad students working on yet
another cheap braille display that never materializes?
I am imagining a set of instructions that would include how to order the
various parts like battery, keyboard, etc, a 3D printer file for the
case, and instructions for installing linux and getting speakup working
on a pi. Bingo! A notetaker any blind person can build themselves.
On 05/26/2016 02:36 AM, Janina Sajka wrote:
Glenn writes:
If the keyboard wasn't an integral part of the motherboard, I'd consider
pulling the MB and putting in my Raspberry PI.
This is a pretty sound idea, imo. If we had a box with speakers, braille
keyboard, basic other IO like RJ45, audio, etc., but could simply swap
in mb from time to time to pick up on enhanced cpu, ram, etc., wouldn't
that be pretty future proof?
Janina
Glenn
----- Original Message -----
From: "Kirk Reiser" <kirk@xxxxxxxxxx>
To: "Speakup is a screen review system for Linux."
<speakup@xxxxxxxxxxxxxxxxx>
Sent: Wednesday, May 25, 2016 8:08 AM
Subject: Re: Linux on access technology
Just as a point of interest, my wife uses her braillite-40
everyday. We replaced the batteries and charging circuit with more
modern ones about ten years ago. She really likes it and is always
worrying about what she'll do when we can't repair hers any
longer. It's editor is clunky but beats the shit out of the editor in
devices like the Alva units.
On Tue, 24 May 2016, Tom Fowle wrote:
I worked on a project to try to develop a TTY modem for the Braille Lite,
Dean was extremely tight about giving me any info about how the lite was
done. I believe they used a Hitachi HD64180 microprocessor which was a
Z80
offshoot. Pretty sure they had no more than about 2 megs of ram and
probably
64K of eprom Don't know about the clockspeed but bet it was pretty kreeky.
I don't believe it was ever field upgradable, Dean said something to me
about using Ymodem to upload programs and having nothing but trouble with
it.
Considering the instability of the hardware I think it'd be a bucket of
squashed worms.
Tom fowle
On Tue, May 24, 2016 at 08:48:08PM -0500, Glenn wrote:
Hi,
I am wondering if anyone is working on a light-weight version of Linux to
work on some of the legacy technology.
I am thinking of devices such as a Braille Light 40 and the like.
I don't know how much RAM these devices typically used, or if they can be
upgraded, the last time I had one open for some battery work, it seemed
that all the components are soldered down.
I imagine that it would take a .BIN file to prompt it to load Linux.
My thoughts are that it could give a bit more usefulness to these old
devices.
I think otherwise, it's just a clunky Braille display.
Thanks for thoughts.
Glenn
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Well that's it then, colour me secure!
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