[Lab] Touch sensitive/reactive windows

[Jean-Marc LeBlanc]

you can also use a project like this one
http://www.43oh.com/2010/09/capacitive-sensing-with-the-msp430-launchpad/

I am not sure if it would work, but if you could use clear conductive
paint or a cleat conductive plastic instead of the foil.

Jean-Marc Le Blanc
---

"Do you pine for the nice days of Minix-1.1, when men were men and
wrote their own device drivers?" Linus Torvalds




On Sun, Mar 13, 2011 at 2:30 PM, Andrew O'Malley <aomalley at gmail.com> wrote:
> Hi gang,
>
> I'm working on a an interactive light piece which is basically a large
> tower covered in windows:
> http://www.technoetc.net/imgs/urbana_2011_gameplay_2.png
>
> Each window will be translucent acrylic, and illuminated from behind.
> To provide interaction, I'd like each window to be touch sensitive.
> I'd like to use a capacitive sensing approach, but not sure if this
> will work until I do some experiments; I fear over such a large area
> capacitive sensing will be very noisy.
>
> In the meantime, I'd love to hear any suggestions anyone might have as
> to how to detect users touching the windows.  I'd like to avoid having
> to use little buttons beside each window or turning each window into a
> mechanical switch -- since there are 100+ windows, I'm looking for a
> solution that scales reasonably well.
>
> Light or IR sensors might be an option, but I imagine will require a
> great deal of calibration.  Does anyone have any experience sensing IR
> reflections through translucent or tinted acrylic?
>
> The piece is still in the design stage, so I'd love to hear your
> suggestions/comments.
>
> Thanks in advance for your consideration and suggestions,
> Andrew
>
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