Sea of Segments

Will Gallia:

The display is made from 8 x 6 = 48 PCBs, each of which controls 8 x 4 = 32 digits via two TLC5920 LED drivers.

The PCB can tile in two directions, either taking data from the top or the right side and outputting to the bottom and left side. Up to eight channels can be fed in from the top, the first channel gets routed though the LED drivers and then comes out of the left side. All other channels are shifted by one and routed out of the bottom. [...]

I achieve a number of grayscale levels by using binary code modulation. I wanted to get 8 bits of colour depth on the segments, but given the arrangement of the PCBs and the fact that the LEDs are already multiplexed (only an eighth of the LEDs are on at any one time), I couldn't get this much depth without getting a very noticeable flicker. In the end I had to settle for 5 bits, so 32 levels, but of course in reality it was less because of the non linearity of our perception of LEDs.

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The Dream of the Nineties is Still Alive

Dan Sinker: "The new historical American Girl doll is from the 90s and makes zines so I'm going to go crumble into dust now."

So the outfit says Soundgarden, and the zine says Bikini Kill, but the bedroom set definitely says Chemical Brothers. We all know what a schwa pillow means, and these raver girls are way too young to be candyflipping and taking nootropics that don't even have street names yet.

This is like if Cock Ring Ken's box said "New! Comes with a cock ring!" in a puffy font.

It's pretty rad that the computer makes dial-up noises, though.

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