[Coco] Re: LCD for CoCo

[tomus]

Robert,

Thank you for your reply.  I agree that ripping up a CoCo isn't the best
use of a classic.  I have in my possesion a small circuit board containg
a 6809 and two 6821 PIAs plus a  '138 decoder chip which I would use in the
EV after I get the bugs worked out using the CoCo as a test bed.  The board
is about two inches by 4 inches, and only needs a composite video out; it
also has a socket for the RS style PROM chip.  I have a programmer, and have
done some assembly, (It would be nice to have a Basic compiler); PIC is OK,
but I'm not at all familiar with
Stamps.

Anyway I am grateful for your concern, and for your helpful suggestions.  I
set up a school network using CoCos for my brothers adopted children, so
they could study math and spelling at home; it used six CoCos and I could
address each one via a switch, but kids are kids, and the repairs got to be
tiresome.

Anyway thanks again

tom tills
tomustoys at sisna.com

----- Original Message -----
From: "Robert Emery" <theother_bob at yahoo.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Saturday, October 23, 2004 3:37 PM
Subject: Re: [Coco] Re: LCD for CoCo


>
> --- Andrew <keeper63 at cox.net> wrote:
>
> > > Message: 1
> > > Date: Sat, 23 Oct 2004 14:28:19 -0000
> > > From: "tomustoys" <tomustoys at sisna.com>
> > > Subject: [Coco] [Color Computer] LCD for CoCo
> > >
> > > Hello Group,
> > >
> > > I'm looking for any info on adding an LCD to my
> > > CoCo to create a dashboard gauge for the EV I'm building.
> >
> >
> > Finally, I must ask why you chose a CoCo over something like a PIC Basic
> > Stamp? Getting a Stamp to drive a composite video input is fairly easy
> > (by having the Stamp output NTSC waveforms) - there have been people to
> > create PONG this way. Or, output the data to a serial graphics LCD. The
> > reason why I bring this up is two-fold:
> > First, the CoCo wasn't ever meant to be installed as part of an
> > automotive (even EV) system ...
> > Secondly, if it died, what then? ...
> >
> > Just something to think about - it might be cheaper and easier to go
> > this route, rather than hacking apart a CoCo (which aren't being made
> > anymore) to do the same job, while taking up considerably more space and
> > electricity (and when you are building an EV, efficiency is the name of
> > the game).
>
> I don't know about cheaper or easier, but I can attest to the fact that a
CoCo
> by itself draws almost an amp when running directly off 12V. (I wonder how
much
> that could be improved with a more efficient regulator and as much CMOS as
> possible)
>
> Bob Emery
>
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