More Standby Compass work

 Did the filling, sanding and painting of the box today.  

Got the computer power supply breakout board working and tested it by powering 50 green LEDs with 12v.  These LEDs have a resistor built-in so I ran them all in parallel.  They pulled about 13 mA at steady state, which is well under the typical 20 mA limit.  They were super bright.

Played with an Arduino sim here - using wrong driver board - to try to think though the wiring.


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