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, February 16, 2006

Hoo-Ah! SpokePOV & uC board

Spoke POV
A friend was borrowing my digital multimeter, so I couldn't use it to test any of my soldering while working on the Spoke POV kit. In the kit, there are:
  • 60 LEDs (2 leads each)
  • 1 20-pin socket
  • 1 8-pin socket
  • 8 16-pin IC's
  • 1 3-pin sensor
  • 1 4-pin switch
  • 2 10-pin headers
  • 4 2-pin battery clips
  • 5 resistors (2 leads each)
  • 8 10-pin resistor networks
  • 1 25-pin DB-25 connector

For those of you doing the math at home, that's 426 through-hole leads to solder without a continuity tester. I flew through everything with relative easy; I was having a harder time aligning all of the LEDs to be straight than I was with any of the soldering. I didn't even need to use my binoculars to do it! It took me about 2 hours or so to solder everything up on both the dongle and the main board and then I crossed my fingers and plugged it all into my computer. Huzzah! Success on the first try.


Action Jackson shot:

Microcontroller Board
I got bored last night and decided to finish soldering the few remaining components onto the microcontroller board I left unfinished some 5 months ago. I had to solder on a resistor, 2 capacitors, 2 ADC chips, the CPU socket, the USB connector, and 8 headers. It all went fairly smoothly and I was a little surprised that I hadn't lost the soldering touch yet. Yay me. I still didn't have a mutlimeter to test when I did this, which is slightly scarier considering the ADCs are 16-pin chips with 0.65mm pitch (a hair wider than 25mil pitch). Anyway, I got a new multimeter shipped today and I did a quick test of the pads and everything seems to have worked out OK. Anywho, here're a bunch o' pics:

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