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A project log for Blinka

A minimal CircuitPython board.

Radomir Dopieralski 10/23/2017 at 11:2111 Comments

The boards arrived from OSHPark and they look great:

One thing that I need to fix is the corner at the back of the neck (do snakes have a neck?) — make it a bit smoother, so that the CNC tool has room for cutting it. By the way, now we know how large a tool OSHPark uses.

Discussions

Clayton G. Hobbs wrote 10/23/2017 at 18:41 point

Looks great!  And yes, they do have necks, it's just a bit harder to tell them apart from the rest of their bodies than in most animals.  Same goes for their tails.

Also, didn't we already know how big a tool OSH Park uses for routing board outlines?  http://docs.oshpark.com/submitting-orders/cutouts-and-slots/

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Radomir Dopieralski wrote 10/23/2017 at 18:50 point

Thanks. Well, I knew the number, but that doesn't really give me a good feel. Actually seeing it works much better for me. Also, it seems this is much larger than the 40mil mentioned on that page.

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davedarko wrote 10/23/2017 at 19:14 point

it says 100mil. 40mil is for plated slots.

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zakqwy wrote 10/23/2017 at 16:45 point

this is awesome! excellent job with the graphics. i've found integrating pcb cut line into graphics to be tough; any undercuts end up looking rounded, so i usually try to keep outlines smooth(ish).

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Radomir Dopieralski wrote 10/23/2017 at 19:26 point

I guess I was lucky with the nyan board, and then assumed it's easy.

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Arsenijs wrote 10/23/2017 at 16:16 point

This is a beautiful, beautiful board! Is this just board art experiments, or something that might be functional in the future, too?

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Radomir Dopieralski wrote 10/23/2017 at 16:19 point

Well, it is a minimal CircuitPython board — it gives you REPL and a disk over USB. I'm making an updated version that will also have a LED in the eye and a piezo speaker on the DAC pin, so you should be able to play wav files on it. Other than that, it can act as a tiny file storage or you could program it to emulate keyboard or mouse and do something funny...

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davedarko wrote 10/23/2017 at 12:01 point

you  could give yourself some board room by making it round and make the background white, but then you lose the cool outline.

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Radomir Dopieralski wrote 10/23/2017 at 13:33 point

Actually a gold background would give it a nice "iconic" look, if you know what I mean...

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davedarko wrote 10/23/2017 at 14:08 point

hm, no I don't. :D

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Radomir Dopieralski wrote 10/23/2017 at 14:59 point

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