Re: Re: [OT] Possible bulk buy on 128 by 64 graphic displays with touch screen

[ian.bird@xxxxxxxxxxxxxx]

Hi Derek

This is a very interesting site as the display I am getting is the same one
by Optrex judging from the picture. Can you tell me more about the command
set and how he presents it to the outside world over 232. Are there any
brains built into it or do you need some electronics beside whatever is
supplied. Can you control the backlight brightness and does it support
landscape and portrait orientation. Any infor would be really useful.

Thanks

Ian






"bty727563"
<derek.kennedy@btin        To:       ukha_d@xxxxxxx
ternet.com>                cc:       (bcc: Ian Bird/CV/Novartis)
Sent by:                   Subject:  [ukha_d] Re: [OT] Possible bulk buy on
128 by 64 graphic displays with touch
ukha_d@yahoogroups.         screen
com


09/11/2005 06:55
Please respond to
ukha_d






I've been using a 128x64 display from the guy at www.simmetry.com
This supports touchscreen, text and graphics over RS232.
Interestingly, he uses a PSoC as the controller for this.

A bit pricey on the website at $129, but he lists these on ebay.com -
I got a few at around the $70 mark.

Derek.

--- In ukha_d@xxxxxxx, ian.bird@c... wrote:
>
> > If you did that, I'd certainly relieve you of a few :-)
> That' good news. Does the added hardware cost affect you here?
>
> >> would pretty much hide the embedded code from everyone.
> >Yeah, I'd be up for that.
> Sounds like a plan then
>
> >I think a plug-in architdecture is exactly right. When finished,
it
> should be usable as an
> >xPL/xAP OSD as well as generating xPL/xAP messages in response to
user
> actions (so
> >messages go both ways). But initially it would work without
xPL/xAP
> support.
> Good
>
> >Would your API support graphics only, or text as well? Or put
another
> way, does the
> >display have built-in fonts that can be mixed with graphics?
> At the moment I support graphics as well as text and simple shapes
e.g.
> circle, oblong, line etc. I could present an API to these I guess. The
> text is a little odd and only one font is in there which is 7 by 6
pixels
> IIRC. I also support custom characters but there are a bunch of
> limitations here (all font stuff actually) including the fact that
they
> are added at compile time for which you obviously need a compiler. It
> would be possible to change the font within the limitations I have
now and
> for me to compile it and send it to you. As I mentioned somewhere else
> programs can be loaded by the end user via serial.
>
> >I've just been looking at the spec for the Mega 64. I don't know
how it
> compares to the
> >various PICs out there, but it certainly looks very capable.
> It is a very good chip. I use the Mega128 at the moment and don't even
> have a 64 although they are slightly cheaper. In this application we
would
> not use a lot of the available horsepower from this chip so there is
> likely room for future capabilities if the hardware design is correct.
>
> >Now, if only you had a mega 64 simulator and a simulator for the
display,
> and connected
> >the two of them, I could do the job before even seeing the
hardware :-)
> Sadly it is not available at a sensible cost. I have to spend the 1200
> quid and get all the hardware first. Then I have to design and build
the
> Mega64 interface board and finally program it. This will take till
after
> Xmas with work commitments.
>
> What PC programming language do you use? I have been using VB6 for
all my
> current applications. I can send you a copy of the current version
so you
> can get an idea of the complexity/oddities involved with this
project and
> handling the data prior to sending it to this new fangled device.
>
> Thanks
>
> Ian