Home > Project > Glass Block LED Matrix, controlled outdoors via tablet

Glass Block LED Matrix, controlled outdoors via tablet

DSC_4648.jpg

Short version: Using an Android tablet, you can draw things on our Glass Block LED Matrix from the street, and it’s pretty awesome. Video here, photos here.

Long version:

Things have progressed recently on the Glass Block LED Matrix which Chris Davis and Paul Vincent started. For a couple weeks, the code was already in place to let Processing talk to it via simple serial commands to the Arduino & ShiftBrite shield. We wanted to use the tools from Project Blinkenlights to control things over the network; while this didn’t entirely work as planned, the project offered a lot of ideas and inspiration.

The most recent addition I made was the inclusion of oscP5 to the Processing sketch to let it listen for OSC (Open Sound Control) messages. As it happens, a brilliant piece of free software already exists (Control from Charlie Roberts) which turns Android/iOS devices into control surfaces that send out OSC messages. On top of this, Control comes with a handful of example UIs, one of them being “Multibutton Demo” which provides a UI with an 8×8 button grid, sort of like a monome. (The tablet in all of the photos is running Control with that Multibutton Demo UI.)

As our LED matrix is 7×8, this UI was a good initial match. I set Control’s destination URL/port to the backend machine that was running Processing, set the sketch to parse the pretty simple OSC messages Control would send out at every button toggle, and then I was able to control what was on the LED matrix by drawing on that 8×8 grid on my tablet.

I finally got to show it off outside on Tuesday evening when it was dark, and it’s working pretty well, as the video shows.

Next steps:

  • Making a Control UI that allows for color control. These are RGB LEDs, after all – we can control intensity and color, not just whether they’re on or off.
  • Making this web-enabled. I think Control allows this?
  • Fixing the glitchiness that I didn’t show in the video; something cryptic is going on on the Arduino side.

Check out the github project here and the project wiki page here.

Post to Twitter Post to Facebook Post to Google Buzz Post to LinkedIn Post to Reddit

  1. September 19th, 2014 at 22:32 | #1

    Howdy! I know this is kinda off topic however , I’d figured I’d ask.
    Would you be interested in exchanging links or
    maybe guest writing a blog post or vice-versa?

    My site addresses a lot of the same subjects as yours and
    I feel we could greatly benefit from each other.
    If you might be interested feel free to shoot me an e-mail.
    I look forward to hearing from you! Terrific blog by the way!

  2. October 2nd, 2014 at 04:46 | #2

    Hello there, You’ve done a great job. I’ll certainly digg it
    and personally suggest to my friends. I’m sure
    they’ll be benefited from this web site.

  3. October 2nd, 2014 at 06:54 | #3

    This is the right web site for anybody who wants to understand this topic.
    You understand so much its almost tough to argue with
    you (not that I personally would want to…HaHa).
    You certainly put a new spin on a subject that has been written about
    for a long time. Great stuff, just great!

  4. October 4th, 2014 at 04:40 | #4

    It’s remarkable in favor of me to have a web page,
    which is beneficial for my knowledge. thanks admin

  1. October 13th, 2011 at 14:46 | #1
  2. October 13th, 2011 at 20:03 | #2
  3. October 14th, 2011 at 06:11 | #3
  4. October 15th, 2011 at 14:01 | #4
  5. October 15th, 2011 at 23:01 | #5
  6. October 17th, 2011 at 00:04 | #6
  7. June 13th, 2012 at 14:31 | #7