November 24, 2007
Reading for November 27th, are now posted. Enjoy!

October 2, 2007
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May 24, 2008
This site has been archived and is no longer editable. Stay tuned for the next version, coming in the fall!

Revision of RGB Diffuser & Real Life Availability Indicator from Thu, 09/13/2007 - 08:19

Project Members: 
Srikanth Narayan


Materials Used:

* Aluminium Foil

* Scotch MatteFinish Tape

* Plastic tube

* Bulb

Diffuser is shown in the picture attached.

Aluminiun foil is hard-pressed & smoothened into a concave surface on a bulb. This is placed on the cut plastic tube. The concave surface's distance from the LEDs is adjusted so that an approximate focal length adjustment is made & good amount of mixing takes place. The inner surface of the plastic tube is lined with a reflective foil to capture the unmixed light in the fringes of the concave reflection & reflect it back within the tube (hoping that more reflection causes more diffusion). The only window for the light to escape is at the bottom of the tube.


Real Life Availability Indicator:

In the virtual world, it is often easy to tell if it is a good time to approach someone (there is the availability indicator in the IM!). But, in real life, the cues are lacking. What my enhancement does is reflect that availabilty using the LEDs. It glows a bright green if you're 'Available', an orange glow if you're 'Away' and a red glow if you're 'Busy'. By this, people can tell if it is a good time to interrupt someone. Now you can keep those nosy ppl about in real life too.

Unfortunately, I couldn't find a way to retrieve someone's online status from the GTalk server. Suspecting it isn't supported. Right now, the program just accepts commands such as 'Set Away', 'Set Busy' & 'Set Available' and changes the colour accordingly


1: Setup1: Setup

2: Pink!2: Pink!

3: Aquamarine3: Aquamarine




SerialRGBEnhanced.txt7.17 KB

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