Bliplace LED Toy

August 27, 2009 by Caleb Kraft 28 Comments

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These wearable LED toys called Bliplace are freshly made and headed to Burning Man. They’re pretty much just a sound reactive toy, but [Tanjent] decided to go pretty in depth in the design. They are 1″ wide octagons with 3 super bright LEDs and a microphone. The microphone is sampled at 4400 hz by the ATTiny25v and the signal is split into high and low frequency streams. The center LED is low frequency, the sides are the high. They can run a full week on a battery. He’ll be handing out 350 of them at Burning Man, then releasing the source code, boards, and kits after that.

210 LED Lamp

August 24, 2009 by Jakob Griffith 53 Comments

full-mountedLeds

Current fluorescent lamps are great for lighting large areas using very few Watts; however, LEDs are far more efficient at producing light and have less of an impact upon the environment considering there is no mercury within them. [Andrew] sent in his team’s LED florescent bulb. The first revision utilized 87 LEDs, but to increase output the second revision uses 210. The assembly can’t actually be placed in current fluorescent lamp ballasts and must use a 12 volt 1 amp power supply, but perhaps future versions will correct for this. Another problem is the relatively small viewing angle, and while there is a diffuser, we’re wondering if they have any other ideas to spread the light and adjust for the color temperature without reducing output? We wonder how it compares to some of the commercially available LED florescent lamps.

Interactive LED Block Wall

August 20, 2009 by Matt Schulz 12 Comments

[Dave Vondle] from IDEO Labs sent in the large LED pixel wall he built using BlinkM modules, an Arduino, and Flash to control it. The overall result is a blindingly bright, large, public display for people to interact with. The best part about the project is that [Dave Vondle] documents everything; from hardware to schematics to source code. Unfortunately, he was forced to remove the wall due to construction, but since every part of the project is open source, it lends itself to be easily recreated. I’m sure we’d all like to see a wireless controller hookup to play pong on the streets of Chicago.

Reverse Engineering USB Drivers

August 20, 2009 by Matt Schulz 17 Comments

luxeed_keyboard

When [Jespersaur] purchased a Luxeed LED keyboard, he was disappointed to find that the drivers were not open source and didn’t support all the features he wanted. His solution? Hack the drivers that come with it, and implement his own. In his article, he gives a basic rundown of beginning reverse engineering by multiple methods and a brief introduction to libusb. For the Linux drivers, check out [Kurt Stephens]’s site, where he supplies a link to the source code, instructions on building it, and a tutorial on sending commands to the keyboard.

Volver

July 20, 2009 by Caleb Kraft 17 Comments

[youtube=http://www.youtube.com/watch?v=JmkW5PpjfNg]

Volver is a 3.75 inch square LED matrix that will display over 1600 unique patterns. Designed by members of Image Node and Disorient, it is a fundraiser for burning man 2009. While it is certainly less colorful than its older sibling the Nodeblinky, it features 8 more LEDs and a bit smoother and faster graphics. Volver can be picked up as a kit, or fully assembled from their site. Just like last time, you don’t have to buy from them. They freely offer the source code and schematics.

4 LED RGB Controller

July 13, 2009 by Caleb Kraft 2 Comments

4rgbled-angle-rainbow_thumb (Custom)

[Steven] was inspired by the BlinkM and Shiftbrite modules, but really wanted something that could be controlled via RS232. He decided to build his own RGB LED module capable of PWM that fit his needs. He’s using a PIC16F628 microcontroller as the base. Each module has 4 individually addressable LEDs with multiple intensities for each color. The units can be daisy chained as well. The schematics and PCB files are available on his site for download.

[via Hacked Gadgets]

DIY AVR USB RGB LED Notifier

July 6, 2009 by Zach Banks 37 Comments

Giving us a chance to break out the TLAs, [Blair] sent in his latest hack where he embedded an RGB LED into his EeePC to display twitter, pidgin, and email notifications. It is based around the ATtiny45, and requires very few additional parts. He based the project on a foundation of work laid by [Dennis Schulze] on notifications and the work of [Dave Hillier] that used V-USB, a library for implementing USB on AVRs. The entire circuit was done freehand and crammed inside the netbook. He says that it is a lot easier to see notifications, even when the laptop is shut.

Related: Email notification via RGB LED