A couple more interesting projects

LED Cube
http://www.lomont.org/Projects/LEDCube/LEDCube.php
A project similar to James Clars’ which arranges LEDs in a cube matrix. The prototype uses bicolour LEDs for simplicity (especially the wiring and logic) but I hope they scale this up to RGB at some point.
justDIY Project Log
http://projects.dimension-x.net/
This guy has some interesting projects, including using a grid of LEDs as proximity sensors – inspired by another project here. He also has a simple RGB LED project.

December 12, 2005 at 8:11 pm 1 comment

LED PWM Drivers

A few devices for driving LEDs with constant current and PWM. These chips typically have serial interfaces for communicating with microcontrollers or computers. There are quite a few drivers designed to drive white LEDs for mobile phone camera flashes – I haven’t listed those, as I’m mostly interested in multichannel drivers suitable for RGB use.
Texas Instruments TLC5940
http://focus.ti.com/docs/prod/folders/print/tlc5940.html
16 Channel LED Driver w/DOT Correction & Grayscale PWM Control
Maxim MAX6966
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/4539
10-Port Constant-Current LED Drivers and I/O Expanders with PWM Intensity Control
Philips PCA9532
http://www.semiconductors.philips.com/pip/PCA9532PW.html
16-bit I²C LED dimmer

October 31, 2005 at 8:10 pm 3 comments

Loverly LEDs!

I needed somewhere to note down interesting sites and information about LED ambient lighting and special effects.   

Projects

Tile Toy
http://tiletoy.blogspot.com/
Cool looking cubes with a matrix of LEDs on the top that communicate via radio links.

RGB LED Controller Project
http://www.rgbled.org/
A modular design for a driver for RGB LEDs. Uses a PIC to control a number of PWM LED drivers.

James Clar
http://www.jamesclar.com/product/index.html
Now that’s what I’m talking about. Lots of cool LED projects.

LED Pimp Bed
https://netfiles.uiuc.edu/bkpeters/www/LEDBed/
This guy got a lot of attention for publishing his simple (no PWM) design for RGB ambient lighting.

VOS Pad
http://thevospad.com/vospad.htm
Another high profile project, this prototype flat includes colour changing LEDs througout.

Wireless Color-Shifting Abstract Decoration
http://students.washington.edu/natetrue/wlcolor/wlcolor.html
Remote controlled PIC-based colour changing blob.

RGB Controller
http://www.emanator.demon.co.uk/bigclive/rgbcont.htm
Nice PIC-based design and kit.

More to come…

General LED resources

del.icio.us / tag / led
http://del.icio.us/tag/led

The LED Museum
http://www.ledmuseum.org/

October 11, 2005 at 8:08 pm 2 comments


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