TauLabs/TauLabs — pull request #1002 by kubark42 (2013-10-22 20:39:15+00:00)
Title: Eagle Tree Pilot Tube Sensor: Fix calibration and airspeed computation.

The sensor was being miscalibrated because the division was wrong. This fixes the issue, as well as cleans up the defines.

It also changes the airspeed calculation to occur only when the pressure is positive. Measuring negative airspeed (i.e. mounting the pitot tube backwards) is plausible, but only just.