Ring-sized watch

Ordered rev.0 prototypes from OshPark (twice, I thought they'd lost it the first time because the USPS jumped the gun in telling me it was delivered). Things I learned:

1. @allObjects was right, my hands are no longer steady enough to solder 0402 resistors :-(
   
2. How did I forget to attach serial and D0 button to the board?!?!
   
3. Going from Eagle to Kicad was no big deal, the autorouter wasn't so great anyway
   
4. I wish the raw MDBT board was available in the US, I was able to program it with a Black magic probe, but it seemed to have a lot of trouble connecting reliably to my macbook
   
5. I'll post all my design files after rev.1 prototype, and I've fixed the bugs on this one
   

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