112-LED coffee table

[Joe] tipped us off about his 112 LED coffee table. This 12-ups the LED matrix from Friday and 31-ups the Shiftbrite table. Driving this grid is an ATmega328 in i2c slave mode. It listens for display data from a second ATmega328 and uses that to set the array of TLC5940 driven LEDs appropriately. Separating the processing microcontroller from the display microcontroller allows for fast and smooth display changes that can be seen after the break. [Joe's] table exhibits exquisite cable management, clean code, and an amazing amount of flexibility. Maybe [Caleb Kraft] will finally pony up the dough and make this project for his own home.

[Joe] waited until he saw some other LED tables to send us a link to his hack. This is obviously an awesome project, one that we want to see just as much as our readers do.  So please, don’t wait for someone else to stumble upon your project, send us a tip once you’re done sharing the details.


  1. kirov says:

    honestly hackaday how many times do you need to keep posting this LED table thing.

    So if tomorrow i make a 113 LED table you will post it? How about a 114 LED table after that?

  2. alexk says:

    im not gonna lie the amount of flexibility the software does with the table is pretty sweet.

  3. Jamie says:


    stop being such a hater. if you don’t like it don’t read it.

  4. monkeyslayer56 says:

    sweet and nicely done

  5. Olivier says:

    @Jamie: I don’t think kirov is a hater, he’s just jealous.

  6. Eraser says:

    All cool hacks are belong to kirov.

    We just can’t seem to find them.

  7. Hirudinea says:

    Next hack “Saskatchewan covered in LEDs!”

  8. bMan says:

    Would love to be able to play some tetris on this!

  9. TRB says:

    The thing that bugs me about arrays of LEDs is how vastly different a single color is on different LEDs. All are being driven to show the same color, but there are LEDs with different shades mixed in.

  10. LOL That guy was Jamming Beat It. Seeing that LED scene reminded me of Super Mario Brothers on the Nintendo.

  11. sam says:

    Needs more Pong where you use a coffee mug to control the paddle.

  12. Sigh says:

    NO MORE LED PROJECTS!!!!!!!!!!

  13. markii says:

    oh not another coffee table… hey, can i drink tea on this table or is it just for the coffee?

  14. jan says:

    awesome! imagine this on your wall

  15. Bleh says:

    ^^^ 0_o Idiot…

  16. M4CGYV3R says:

    “Separating the processing microcontroller from the display microcontroller allows for fast and smooth display changes”

    Hmm, now if only they could come up with something like this for a full-sized desktop computer. Somehow separate the graphics from the main processing, like on a separate card. Maybe they could even make the separate cards with different abilities and outputs? Just a thought.

  17. ChalkBored says:

    M4CGYV3R, what next? A seperate card for audio output?

  18. Ed says:

    I like this, but why not just get a 50″ 1080p TV and fix it underneath a glass coffee table.

    1920×1080 right there :-p

  19. yuppicide says:

    I like the LED tables. I’d love to own this.. it’s sexy. I’d love one that plays pong.

  20. toddy says:

    the big yellow one is the sun!!

  21. dnafrequency says:

    16 across… perfect number for using as a display for a step sequencer :)

  22. misan says:

    But it is just one pixel!!

  23. Awesome table, but I think it gave me a seizure.

  24. Olivier says:

    @Ed : I’m not sure the TV is the same price of building this :) At least building something with LEDs is funnier than just mounting a TV in a table ;)

    But the TV idea would be awesome to play pinball games.

  25. barry99705 says:


    That will never catch on.

  26. Eric says:

    I just wish that someone would put ligh diffusing material under the glass/plexi. So many options. shower curtain, waxed paper, hell, just sandblast even. It would look so much smoother IMO.

  27. the_tom777 says:

    This should have tetris and snake. It’d be awesome.

  28. Hater says:

    I like it but i do have a 240 LED table1 much better bitches!

  29. Harry says:

    This just looks really damn cool. I’d spend all day programming the thing to project all kinds of naughty words lol :)

  30. Elise says:

    Beyond cool!!!

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