Airspeed Issue

HAs anyone had issues with the airspeed sensor using ArduPilot with the shield?  I have set the proper millivolts in the code but it doesn't seem to work right.  After loading the code and looking at the GCS at a standstill the airspeed is 0....great.  At the slightest breeze (or blow toward the tube) the airspeed jumps up to 200 +/-40.  It's never worked since I've been using the GCS.  This is happening on 3 separate ArduPilot setups so I know it's not the hardware.  Any ideas, thoughts, or experiences with this issue?

Thanks!

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  • Hello,

    I know, this post is very old. But here is the answer of the question.

    You have to change the GCS_standard_text.pde. Because airspeed is send in cm/s but the GCS expect it in m/s.

    Change line 180 from "Serial.print(airspeed,DEC);" to "Serial.print(airspeed/100,DEC);"

    Regards

    Sebastian

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