Disable all volume control for now
Remove test lights
Add geometry for 2nd panel of LEDs and setup to start in 'test' mode for LEDs (all lit)
Update LEDDigit to actually write number and add geometry for first digit IHR0.
Return null when control not found
Add geometry for IHR1
Setup to only test LED's for 1 second at startup.
Add random numeric setting for IHR. No refactoring into general solution yet.
Fix geometry setting
Add class to manage random three digit values for display
Add ABR and AHR geometry and basic logic
Setup more channels for audio output
Tighten up the protocol a little bit so as to use less bandwidth by using single letter commands.
Setup some lag between updates of the surgeon panel until I can optimize the protocol
Optimize the protocol between arduino and pi by sending numeric readings as a single value and booleans as 0|1ß
Add geometry and basic rules for Pitch, Yaw, and Roll
Use min/max to define upper and lower bounds no numbers rather than if/then blocks
Fix computation of LED number output so that 0 is prefixed rather than suffixed for less than 3 digits.