v2 Prototype PCB

The v2 prototype is what you see in the YouTube video demo.  It is fully functional, contains updated artwork, and works really well.
We decided to update the artwork yet again and still ran into some artwork layer issues with the manufacturer, so we kept learning and used our knowledge to make v3 even better.
Both eyes in v2 are 1mm x 1mm.  
We reassigned some pins based on compatibility and included the USB port directly on the SAO.  And it's flush mounted, so no through holes!
All of our features worked on this version, including the i2c client software!  That was very exciting to test and implement.  See the YouTube video for a demonstration.