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 26, 2006

Status update

This will be a pretty short post. I am leaving on a vacation for a week and won't update the blog (or the wall!) until at least next Wednesday (Nov 1st).


I've got all 120 pixels glued in and working!!! whoo hoo! Let's add a few more exclamation points just to show how happy I am!!! OK, two more!!

All my progress was not forward, however. It saddens me to say that one of my driver boards is now not operational. During my testing, I noticed that the red LED on one of the pixels wouldn't work (out of 360 LEDs, only 1 didn't work... not bad). I tested a bit and eventually figured out that the pin for this LED from the driver chip wasn't making good, solid contact from the driver board. I could press down on the chip a little and then the LED would work again.
I tried resoldering the connection, but that only proved to make things worse. After resoldering, all of the surrounding LEDs glowed faintly, indicating a leakage voltage somewhere.

Luckily, I had made 7 driver boards, so I grabbed the remaining one and it works fine.

Everyone is just going to have to take my word for it that stuff is working great. I'll get some pictures and videos up when I get back. I promise!

Oh, and for those that are wondering just how crazy I am, I've put in 56 hours in the last 2 weeks (and that's with no work on Wednesdays and only half of Sundays).



Anonymous MJ said...

Wow!!! All working?!! That's amazing!!!! 56 hours?! You ARE CraZy!!!

So, for LEDs 359/360 ~ 99.7%, but for driver boards 6/7 ~ 85.7%. All progress was NOT forward, indeed. (Notice understated period.)

Wednesday, November 01, 2006 2:42:00 AM  

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