tech e blog

04/03/2006

Interactive LED Dining Table

Put simply, this is the coolest dining table we've seen yet. It consists of 448 multicolored LEDs -- controlled using a 16-node 1-D analog computer network -- that respond to input (motion) generated above the table. Video demonstration after the jump. [via Flickr and Make - ShoutIt]

From the article: "Each node has an amplified photodiode that senses changes in ambient light above its region of the table. An analog integrator (memory) averages that signal along with input from its neighbors, and the resulting signal is used to drive one of two strands of 14 LEDs (depending on polarity) with intensity that depends on the integrated value. Each node consists of one photodiode, one quad op-amp IC, nine resistors, and four capacitors that we hand-soldered onto a tiny piece of plain perfboard. We mounted the nodes to sheets of masonite pegboard, such that the output LEDs fit through the holes."

This entry was posted on 04/03/2006 03:54am and is filed under Design, Mods .
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Posted at 04/03/2006 12:21pm by Dekan
Would Be Great... If we were still in the 70's.
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Posted at 04/03/2006 12:47pm by Too Cool Tech » LED Dining Table makes eating way too fun
[...] Normally, a dining room table wouldn’t make it onto this site. Of course, a dining room table normally doesn’t have 448 multi-colored LED lights that react to the motions of the people around it. It uses a 16-node 1-D analog computer network to make it work. I have no idea what that means. What I do know is that dinner would be a pleasure if the table was all flashy and moving and it reacted to my actions. My dinner would get cold because I would be playing with the table. Too cool. (Tech EBlog) [...]
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Posted at 04/03/2006 2:50pm by Jeff
Is it just me, or does the whole motion activated thing not really do a whole lot?
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Posted at 04/03/2006 2:53pm by Tavbiy
looks like something out of a SIMS expansion pack
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Posted at 04/03/2006 2:55pm by whoandwhy
I thought the same thing. I didn't notice anything special happening when the kid moved his hand around. Neat and all, but if it's motion sensitive, it sure doesn't show it in that video.
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Posted at 04/03/2006 5:02pm by Deadly Computer Blog - LED mods!
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Posted at 04/03/2006 8:25pm by masa
the bar was better
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Posted at 04/05/2006 01:08am by Windell Oskay
We built this because we needed a new dining table-- and we thought that we might as well make it interesting as well. In the video, our kid is... well... being a kid, and moving before the table has a chance to respond. The cat, on the other hand, moves her tail back and forth, controlling the table on an even faster time scale. In practice, when we're actually eating dinner, it gently changes state a couple of times a minute, whenever someone reaches for their glass. It's certainly no disco machine, nor anything like the bar (I like the pong mode *a lot*, but I wouldn't want to eat over it).
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Posted at 04/05/2006 09:16am by Idiot World
Shagadelic Table
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Posted at 04/07/2006 09:54am by zeromp
I guess that's kinda cool.. But I think a faster response time from the photodiodes might make it more interesting. Or else it might make it annoying - hard to say.
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Posted at 04/07/2006 12:03pm by oilslug
what exactly... does it doo...? :s
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Posted at 04/07/2006 12:38pm by Kapua
I think this table is way cool. I don't think that I would have one in the house (unless I had a game room) but I would definantly want to see this in a club or hip restaurant in the city. That would be a plus side to going to that place, eating your sushi and drinking yout martini at a LED table while listening to Electronic dance music, how much cooler could that get!
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Posted at 04/07/2006 1:21pm by Neoghost
How bout we get the cat off the table, it doesnt look to thrilled to be there. And the kid isnt demonstrating anything at all for us. Except him moving his hands in a strange manner like its doing something we cant see. Stupid cat, stupid kid. its an led table get over it. If it was a table that displayed current news in an LCD flat screen, now that would be interesting, read the news at the table, like most americans do. But in LCD format built in.
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