Skeleton code.
Initial implementation that can read values from the ETS.
Add in the missing header.
Switch to differential pressure topic
Remove some testing code.
Split diff pressure and airspeed.
Cleanup variable names and such
Add missing uORB topic
Debugging, cleanup and added airspeed to HoTT telemetry.
Cleanup
Merge remote-tracking branch 'upstream/master' into eagletree
More cleanups
Merge remote-tracking branch 'upstream/master' into eagletree
Yet more cleanups.
Style fix: ETS_AIRSPEED > ETSAirspeed
Merged ETS airspeed driver