An ever-changing LED display makes for an interesting show. An LED table powered by tweets makes the light show that much more exciting. This Twitter-enabled device builds on a previous project which had uses 81 RGB LED modules in a 9×9 grid arranged atop an IKEA coffee table.

The “Live Twitter Table” extends the multi-colored LED display by adding a Bluetooth Arduino Shield which wirelessly connects to a nearby MacBook Pro. The table is controlled by tweets broadcast with the #ledtable hashtag and formatted with pixel coordinates for the LED matrix.  A Twitter interface code parses the incoming Twitter posts and transmits it via Bluetooth to the Arduino microcontroller. A continuous stream of Tweets sets up the changing display on the LED table.

Macetech details the entire project from the stage of putting together an IKEA coffee table with LED grid including the source code. For your own LED project, you can try hooking up several wireless devices to a central computer and have them display your own LED designs.

Top LED Projects:

• Arduino Powered Pong on an LED Matrix
• Write in Midair with a Simple LED POV Display
• LED Light Box Thumps to Your Music

We’ve covered a few of Joe Grand’s projects on the site before and here’s another fantastic project to add to the collection.  This POV (persistence of vision) watch displays the current or elapsed time while the arm is swinging (such as during a run or brisk walk).  A sequence of LED patterns from the watch are displayed in quick succession appearing in “thin air.”

• Build it Yourself
  You’ll find schematics, gerber files (learn how to design schematics in eagle), source code and everything you need to create your own POV watch.
• More POV fun
  We’ve covered plenty of POV projects in the past, a few of which even made it onto our top 40 arduino projects list.  The image above is this POV bike project and there’s also this wireless version.

You’ll also enjoy:

• Render your Eagle Circuits in 3D
• Subscribe to HacknMod for more oustanding projects.

After traveling to the world’s most incredible electronics emporium, Evil Mad Scientist Labs brings us a nice tutorial teaching you how to create giant seven segment LED displays.  As always, their tutorials are incredibly informative and easy to follow.  For all your LED needs, see our vast collection of dirt cheap LEDs in our store.

Hack N Mod’s LED Projects:

• Extreme LED Synthesizer Piano Mod
• How to: DIY Star Wars Lightsabers & Replicas
• Don’t miss our entire collection.

A table filled with hundreds of LEDs and motion sensors equals LEDs you can control with your hands. Wave your hand over the table and enjoy the show. The kitty might think it’s alive but your guest won’t help but admire! Have fun building it and even more fun showing it off.

More LED Projects:

• Absolutely Stunning LED Light Project
• Exceptional Nerd-tastic Pumpkin Carvings
• Buy low priced LED Lights