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.

Monday, June 20, 2005

More parts

Not any big updates yet... My whole weekend was busy with another task and I had no time to do any real work on this project.

I ordered 60 LED driver boards with a modified layout from the original one. I had to enlarge all of the header vias. I also grew the board by 0.1" on each side (to 1.9" square) and moved stuff around a bit to adjust for this. "rev 3b" of the board should be here by about Friday or possibly Monday.

I also ordered a bunch of other stuff from DigiKey today. It was mainly just components for soldering the driver boards, but I also ordered the power supply I had picked out.
It's a power supply that outputs 5.1V and up to 13.6A (normal convection cooling) or 19A with forced-air cooling. If all 15*16*3 (720) LED's are on at 20mA each, that means that the wall will draw at-most 14.4A. I will probably mount a small (10mm or so) fan to blow across the power supply just in case.

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