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IMU (sensors) question

Discussion in 'Pro/Adv Discussion' started by neven, Apr 4, 2016.

  1. neven

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    Is it normal not to have any data in Sensors fields until aircraft warms up? And grayed out IMU Check and IMU Calibration buttons?
     
  2. Trackman1

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    No. Not normal. But that does happen to me sometimes.
    I have changed my start up order and it works now every time.

    Tablet is on and plug into usb. Go app is not loaded.
    Turn on Remote.
    A screen starts up asking if I want to start go app. I click OK.
    The tablet screen then shows Expire 1
    Turn on bird.
    Screen shows P3 Pro. (I have advanced.)
    Wait ten seconds and screen shows P3 Advanced.
    I can now enter Camera Screen and all is well.

    This works every time for me. Otherwise it might not.
    Going into sensor screen I might see no values. But not by this methods.
     
  3. alokbhargava

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    App has to get the values from bird thru RC, and warming stage is an intermediate stage when P3 is booting up and setting up its values.
     
  4. Oso

    Oso

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    Back when I first got my P3, this was normal while the P3 was warming up. At that time the warm up took longer. Since most of us have already shortened our warm up times via a cold IMU cal, the warm up happens quickly and the sensor values are also there quickly.

    How long does your warm up take to complete? Have you done the cold IMU cal?
     
    JoBe and BudWalker like this.
  5. neven

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    This is exactly my preflight process.

    IMU Cal was done in room temperature (20C). P3P is stored and powered on in same room temperature. It takes 2 minutes to warm up and get IMU values shown.