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Re: Min Touch Screen module
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Hi Dave,
This looks very nice! I've been playing with something similar - but with a
slightly bigger screen, and without touch (I am going with capacitive
sensors around edge of screen bezel), based on the newish rabbit micos wifi
controllers (RC5500W) - I had a quick scout for a datasheet on the ADS7486,
but drew a blank - any pointers? I'm guessing there isn't scope in your
design for a half populated (processor-less) board exposing an SPI
interfac=
e
to the display?
PS. Re. perspex front panels - if you paint clear perspex from behind with
aerosol paint, you get a really nice professional looking finish
"through"
the perspex.
Cheers
Patrick
2009/9/19 Dave McLaughlin <dave@xxxxxxx>
>
>
> Hi All,
>
>
>
> I have been looking at some way of installing small dedicated touch
scree=
n
> units around my apartment for various control purposes and because I
have
> control of Homeseer via xAP I have designed the following after coming
> across small 2.4=94 touch panels for the 128x64 LCD displays.
>
>
>
> I have used the displays already and they are very bright and clear
and
> come in either green or blue backlight.
>
>
>
> I have developed a small PCB that fits on the rear of the LCD and
connect=
s
> the data lines and has a small 4 way connector for the touch panel.
At
> present I have not yet had the board made up and I wanted to post here
an=
d
> see if you had any thoughts on it or any ideas to add to it, but bear
in
> mind the small size and what can fit on there.
>
>
>
> At present I have an Atmel Micro and a Zigbee module on there. I have
> included a relay as I had thought about it controlling a simple
contact
> closure on local external devices for switching on and off. As the LCD
is
> programmable, it can be made to control or display any information and
> respond the touch.!
>
>
>
> If you have time, I would appreciate if you could download the PDF and
ha=
ve
> a quick look and see if you could improve on what I have? The PDF has
3D
> views of the PCB with some information about. At present there is
little
> code for it other than what I have from previous products. It should
> interface nicely to the xAP to Zigbee module I developed previously.
>
>
>
> http://www.embeddedcomputer.co.uk/TouchScreenModule.pdf
>
>
>
> Cheers,
>
> Dave...
>
> ---
> Very funny Scotty, now beam down my clothes!!!
> ---
> http://www.embeddedcomputer.co.uk
> ---
>
>
>
>
>=20
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Hi Dave,<br>This looks very nice! I've been playing with
something simi=
lar - but with a slightly bigger screen, and without touch (I am going
with=
capacitive sensors around edge of screen bezel), based on the newish rabbi=
t micos wifi controllers (RC5500W) - I had a quick scout for a datasheet
on=
the ADS7486, but drew a blank - any pointers? I'm guessing there
isn&#=
39;t scope in your design for a half populated (processor-less) board
expos=
ing an SPI interface to the display?<br>
<br>PS. Re. perspex front panels - if you paint clear perspex from
behind w=
ith aerosol paint, you get a really nice professional looking finish
"=
through" the
perspex.<br>Cheers<br>Patrick<br><br><div
class=3D"gmail_=
quote">
2009/9/19 Dave McLaughlin <span dir=3D"ltr"><<a
href=3D"mailto:dave@embe=
ddedcomputer.co.uk">dave@xxxxxxx</a>></span><br><blockquo=
te class=3D"gmail_quote" style=3D"border-left: 1px solid
rgb(204, 204, 204)=
; margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
=20=20=20=20=20=20=20=20
<div link=3D"blue" vlink=3D"purple"
lang=3D"EN-GB">
<br><br>
<div>
<p>Hi All,</p>
<p>=A0</p>
<p>I have been looking at some way of installing small dedicated
touch screen units around my apartment for various control purposes and
bec=
ause
I have control of Homeseer via xAP I have designed the following after
comi=
ng
across small 2.4=94 touch panels for the 128x64 LCD displays.</p>
<p>=A0</p>
<p>I have used the displays already and they are very bright
and clear and come in either green or blue backlight.</p>
<p>=A0</p>
<p>I have developed a small PCB that fits on the rear of the
LCD and connects the data lines and has a small 4 way connector for the
tou=
ch
panel. =A0At present I have not yet had the board made up and I wanted to
post here and see if you had any thoughts on it or any ideas to add to it,
=
but
bear in mind the small size and what can fit on there.</p>
<p>=A0</p>
<p>At present I have an Atmel Micro and a Zigbee module on
there. I have included a relay as I had thought about it controlling a
simp=
le
contact closure on local external devices for switching on and off. As the
=
LCD
is programmable, it can be made to control or display any information and
respond the touch.!</p>
<p>=A0</p>
<p>If you have time, I would appreciate if you could download
the PDF and have a quick look and see if you could improve on what I have?
=
The
PDF has 3D views of the PCB with some information about. At present there
i=
s
little code for it other than what I have from previous products. It should
interface nicely to the xAP to Zigbee module I developed
previously.</p>
<p>=A0</p>
<p><a href=3D"http://www.embeddedcomputer.co.uk/TouchScreenModule.pdf";
targ=
et=3D"_blank">http://www.embeddedcomputer.co.uk/TouchScreenModule.pdf</a></=
p>
<p>=A0</p>
<p>Cheers,</p>
<p><span style=3D"font-size:
10pt;">Dave...</span></p>
<p><span style=3D"font-size: 10pt;">---<br>
Very funny Scotty, now beam down my clothes!!!<br>
---<br>
<a href=3D"http://www.embeddedcomputer.co.uk";
target=3D"_blank"><span style=
=3D"color: blue;">http://www.embeddedcomputer.co.uk</span></a><br>
---</span></p>
<p>=A0</p>
</div>
<br>
=20=20=20=20
=20=20=20=20
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