Jurek and the Amazing Techno, Colored DreamWall

Jurek and the Amazing Techno, Colored DreamWall

The title is mostly a placeholder, as I haven't really figured out a name for it yet. This project is a wall hanging that consists of semi-large triangular pixels using discrete RGB LED's and PWM to control intensity levels of each LED, resulting in a 4096-color display.

Thursday, October 12, 2006

Gluing progress

20 more pixels glued into place. That leaves me 33% done with the gluing. This round went much faster than the first time. Woo!

I've just been playing around a little bit with things here and there. Currently, there's not a whole lot I've been really attempting. I would like to have some sort of unique pseudo-random number generator. Pseudo-random is fine for what I need, but that's only as random as its initial seed, which is deterministic for the microprocessor without any sort of analog input (white noise, ADC, user input, etc). I think the easiest approach currently would be to have a small switch on one of the unused ports that can be pressed at any time while it's running that would update the seed. I could just have an unsigned int as a counter for the main loop, and whenever it detects the switch as closed, I can just call srand with the counter as an argument.

I'm going to be ordering a few odds and ends (wire, terminal blocks, crimp terminals) for the current stages I'm in.
I've recalculated a few times how many of each length of LED triplets I will need, and with my current calculations, I need to solder 31 more triplets of various lengths (2 10", 17 8", & 12 4") for the first module.

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Anonymous MJ said...

Hey, isn't ADC that band who plays "Hells Bells"?

Isn't the number of LED Triplets == number of pixels on your dancing wall?

Friday, October 13, 2006 2:43:00 AM  

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