Gummi Worm Clock

Board, stencils and parts ordered

Alright, that was annoying. Here's the full board:

Despite getting the shift register/LED driver thingy right, this was a farily annoying board to route. For exhibit one, I present something from the Sparkfun Eagle library:

Genius.

Now that this is done, I'm going to run the DCR, sleep on it, check it again in the morning, and send it off to OSHPark. It's ~$45 without a stencil, so not too bad. The total BOM cost of this clock is looking like it's going to end up somewhere around $200. Oh well.

You would expect laying out a board with an RGB seven-segment display would be horrible, right? Nope:

That's an ST LED2472G 24-channel LED driver sitting right underneath the RGB seven-segment LED. That's also a lot of planning to get all the LEDs connected to the driver without any vias or other horrible layout bullshit.

Here's the full view of the board so far:

Now that the LEDs are laid out, the only thing left to do is to connect the data, clock, latch, and OE lines to the Raspi header. Then it's off to OSH Park for rush shipping, and about two weeks of waiting.