The airspeed meter measures the airspeed dynamic pressure and the atmo.spheric static pressure at the altitude where it is located, converts the pres-sure signal into an electrical signal in a differential pressure sensor, processesit through an amplification circuit, and then converts it into a digital signal byA/D, and finally converts it into airspeed.

I²C airspeed meter, using TE's MS4525DO sensor, with full calibration andtemperature compensation, total error band (TEB) less than 1% of the com-pensation pressure range, the output using l2C digital interface, with very lowcurrent consumption, anti-high noise interference, suitable for a variety ofsmall fixed-wing aircraft.