[Noisebridge-discuss] Two-way optical interface?

[Liz Henry]

There are some interesting projects at MIT Media Lab which are kind of
similiar.... One is Sensetable and the other I can't remember the name
of but it was a little gadget about the size of a very small computer
mouse that you can set up with an arduino board to interact with a touch
screen.  They were either in the Tangible Media group or the Fluid
Interfaces one.

- liz



On 8/24/12 1:06 PM, Ari Lacenski wrote:
> I'm a terrible go player, but I sure like LEDs...
> 
> Most go sets that I've seen have matte black stones and polished vitreous
> white ones. It would be worth getting a few cheap photodiodes, placing one
> next to an LED with a very focused view angle, and seeing if you get
> measurably different output from [no cover; reflectance from black stone;
> reflectance from white stone].
> 
> Daylight might ruin this whole plan; choosing a photodiode responsive to
> only a certain spectrum would help. I recommend NOT choosing the IR
> spectrum to play with.
> 
> It might not work at all, but little cones of light spilling from the edges
> of stones sounds like a lovely game.
> 
> Or you could hack up a two-color monome <http://monome.org/> with
> the buttons at crosses.
> 
> Ari
> 
> On Thu, Aug 23, 2012 at 4:35 PM, Sai <sai at saizai.com> wrote:
>> After playing go with y'all a few times at Toorcamp, I thought of an
>> idea for a modified go board - namely one that's 100% normally
>> constructed, except that it would have Things at the crosses.
>> (Potentially it could also have them at the centers of squares as
>> well, if you want to have a board that could be used for other games
>> too.)
>>
>> The utility: you could have physical play-by-email/server games (with
>> the local player just playing stones as normal, and being prompted for
>> where to play opponents' moves; you could have useful teaching cues,
>> like highlighting dead groups; you could have entirely novel kinds of
>> games.
>>
>> The Things would need to
>> a) output light of different colors, and
>> b) determine what color stone (if any) is on top of them
>>
>> Ideally the output light should work as a kind of halo around a normal
>> stone; possibly one could use clear or clear-cored stones instead,
>> though I think that harms aesthetics.
>>
>> I'm not sure how to make such a Thing, though (and really, making
>> hardware is not at all my area of expertise, so I'm just guessing here
>> in the first place). If it were output only, I think that LEDs or
>> fiber optic cable would be reasonable. But how do I test what stone is
>> on top of them, especially if we assume unaltered stones?
>>
>> I can imagine that it may be possible to have the fiber optic go on a
> cycle:
>> 1. transmit a burst of test light
>> 2. receive the reflection, classify it to determine stone that's on top
>> 3. transmit actual display light for humans (most of the time)
>>
>> I'm not sure if this is actually possible or not though; I know
>> nothing about fiber optic hardware capability. Any suggestions?
>>
>> - Sai
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> 
> 
> 
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-- 

------------------------
Liz Henry
liz at bookmaniac.org
http://bookmaniac.org

"Without models, it's hard to work; without a context, difficult to
evaluate; without peers, nearly impossible to speak." -- Joanna Russ