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<div class="gmail_quote">On 28 April 2011 10:46, Andrew O'Malley <span dir="ltr"><<a href="mailto:aomalley@gmail.com">aomalley@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Hi all, an update on this touch-sensitive windows project . . .<br>
<br>
I ended up using the CapSense library for Arduino with a row/column<br>
electrode arrangement, thus only needing 11+1 i/o pins for each 5x6<br>
array of windows. Thin wire was used for the electrodes, with a<br>
row/column intersection centered on the back of each window. Despite<br>
some noise/interference problems (mostly solved w/ grounding), this<br>
solution worked pretty well.<br>
<br>
Each window was individually illuminated by a Shiftbrite, and the<br>
whole thing assembled in a fabricated steel structure.<br>
<br>
I've written a detailed post about the (on-going) project here:<br>
<a href="http://technoetc.net/blog/2011/04/27/urbana-2011/" target="_blank">http://technoetc.net/blog/2011/04/27/urbana-2011/</a><br>
<br>
Thanks again for your input and suggestions,<br>
ao.<br>
<br>
<br>
<br>
On Mon, Mar 14, 2011 at 11:10 PM, Andrew O'Malley <<a href="mailto:aomalley@gmail.com">aomalley@gmail.com</a>> wrote:<br>
> Thanks for the suggestion.<br>
><br>
> The other issue I have with an ir+camera solution is that there will<br>
> be substructure in the tower which will be holding all the lights<br>
> which illuminate the windows, so there will only about a 3 inch margin<br>
> between that and the inner walls.<br>
><br>
> ao.<br>
><br>
><br>
> On Mon, Mar 14, 2011 at 7:02 PM, Mike Baker <<a href="mailto:mbaker3@gmail.com">mbaker3@gmail.com</a>> wrote:<br>
>> If you're looking at an IR based solution I've been working on a touch table<br>
>> using IR lasers. They have the advantage of still working quite well in<br>
>> sunlight rooms.<br>
>><br>
>> Here are the lasers I use and am quite happy with so far:<br>
>> <a href="http://aixiz.com/store/product_info.php?cPath=44_27&products_id=67&osCsid=d5b9a3ff99350c797248ca117ed67cfb" target="_blank">http://aixiz.com/store/product_info.php?cPath=44_27&products_id=67&osCsid=d5b9a3ff99350c797248ca117ed67cfb</a><br>
>><br>
>> The challenge with your idea would be somehow using a camera to capture the<br>
>> reflected IR in that small box. I can't think of a solution immediately but<br>
>> I'll keep on it. Maybe the use of a chrome ball or extreme fish eye lens on<br>
>> the camera to try and capture all sides of the installation at once.<br>
>> --<br>
>> Mike Baker<br>
>><br>
>><br>
>> On Mon, Mar 14, 2011 at 5:43 PM, Andrew Plumb <<a href="mailto:andrew@plumb.org">andrew@plumb.org</a>> wrote:<br>
>>><br>
>>> Have a look around for spray-on anti-static ESD coatings. That might get<br>
>>> you the conductivity you need for capacitive sensing over larger surface<br>
>>> areas.<br>
>>> Andrew.<br>
<div><div></div><div class="h5">>>><br>
>>> On 2011-03-14, at 5:13 PM, Andrew O'Malley wrote:<br>
>>><br>
>>> Ouch, too expensive for my budget considering I have 100+ 5" x 7"<br>
>>> windows to deal w/.<br>
>>><br>
>>> Thanks for the input everyone, please keep it coming if anything comes to<br>
>>> mind.<br>
>>><br>
>>> So far my most promising results are using capacitive sense wires near<br>
>>> the windows; going to do a full-scale mock-up of my interaction<br>
>>> surface this week to confirm.<br>
>>><br>
>>> Cheers,<br>
>>> ao.<br>
>>><br>
>>><br>
>>> On Mon, Mar 14, 2011 at 5:03 PM, <<a href="mailto:bentfork@gmail.com">bentfork@gmail.com</a>> wrote:<br>
>>><br>
>>> I've seen transparent conductive glass used for DIY EL screen<br>
>>><br>
>>> printing. I think they used Indium Tin Oxide, aka ITO Glass.<br>
>>><br>
>>> The cheapest I could find (in 30 seconds) was<br>
>>> <a href="http://bayviewoptics.com/id2.html" target="_blank">http://bayviewoptics.com/id2.html</a><br>
>>><br>
>>> It looks like people have been able to manufacure their own. I even<br>
>>><br>
>>> saw a youtube on it. <a href="http://www.youtube.com/watch?v=OTu4KhL7IOE" target="_blank">http://www.youtube.com/watch?v=OTu4KhL7IOE</a><br>
>>><br>
>>> If you find any cheaper let me know ;)<br>
>>><br>
>>> On Mon, Mar 14, 2011 at 3:47 PM, <<a href="mailto:lab-request@artengine.ca">lab-request@artengine.ca</a>> wrote:<br>
>>><br>
>>> Message: 8<br>
>>><br>
>>> Date: Mon, 14 Mar 2011 15:47:21 -0400<br>
>>><br>
>>> From: "Andrew O'Malley" <<a href="mailto:aomalley@gmail.com">aomalley@gmail.com</a>><br>
>>><br>
>>> Subject: Re: [Lab] Touch sensitive/reactive windows<br>
>>><br>
>>> To: Jean-Marc LeBlanc <<a href="mailto:jeanmarc.leblanc@gmail.com">jeanmarc.leblanc@gmail.com</a>><br>
>>><br>
>>> Hi,<br>
>>><br>
>>> Thanks for your ideas/suggestions everyone -- I'm hearing the idea of<br>
>>><br>
>>> conductive coatings or conductive plastic a lot, anyone have any leads<br>
>>><br>
>>> where I would acquire such things?<br>
>>><br>
>>> Thanks again,<br>
>>><br>
>>> ao.<br>
>>><br>
>>><br>
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>>> --<br>
>>><br>
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>>><br>
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>>><br>
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</blockquote></div><br>