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interesting component..maybe some uses for arcade builders...
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ChadTower:

Depends really on how it reads the pattern to use.  If it's just reading it out of a text file then you would only have to change the text file and then force a reload somehow.  If it's something you have to actively load onto the controller somehow, that may or may not be a problem, either.  It's probably a fairly simple thing to do in a PERL script either way depending on what type of event you want to trigger an image change.
SavannahLion:

--- Quote from: ChadTower on July 31, 2008, 01:09:37 pm ---If it's something you have to actively load onto the controller somehow, that may or may not be a problem, either.  It's probably a fairly simple thing to do in a PERL script either way depending on what type of event you want to trigger an image change.

--- End quote ---

The box photo gives a hint and the review explains it in some detail. The data is written to an onboard controller. Depending on where the controller is and how the cable is jacked in, you'll likely not even be able to make changes on the fly for no other reason than the physical limitation of a spinning fan. Overcome that and everything else should fall into place.

Still a cool little accessory. Not a bad deal for $20 either. 49CFM seems a average though.
ChadTower:

That doesn't really rule out the possibility.  A USB device tends to mount as a drive, yes?  If you look at the picture of the client it appears to be writing whatever format it uses out to a file called usbled.txt (in this instance, anyway).  If you were able to reverse engineer that format you could create those files yourself with a PERL script.  PERL is perfect for that - it is at its heart an Extraction and Reporting Language.  All that would be left then would be to find a way to dump that onto the controller from the command line.  If anything in this process is going to be the showstopper, that would be it, but I bet it could be done one way or another in the same PERL script. 
Neverending Project:

--- Quote from: Franco B on July 31, 2008, 11:56:44 am ---Very cool  8)

I could imagine some  Pacman chasing ghosts and marching Space Invaders animations on those.

May have to grab a couple methinks  :)

--- End quote ---

Funny you should mention that...
Link

This is a kit for a bicycle wheel spoke, but there are certainly different kits out there...
ChadTower:

I wonder how much that weighs.  That would be kick ass to use in my next race.
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