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Compass Calibration fail

Discussion in 'Pro/Adv Discussion' started by lesn8r, May 25, 2015.

  1. lesn8r

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    Hi all,

    I have a new P3 and had a great first flight. I've read the manual, watched the tutorials etc. I've been flying RC heli's for many years. Had an odd thing happen, I went out, the next day, and tried to do a compass calibration (probably not required) and it failed. Now I cannot get my bird to calibrate at all. I've tried all around the property (I live in a rural are not really susceptible to EMI), I drove about 5 miles to an abandoned orchard and still no luck. When I calibrate horizontally I get a solid green LED, when I do the vertical it goes to flashing red.... I'm pretty frustrated.

    Any creative ideas?

    Running the latest FW 1.19.

    thanks,
    Lesn8r
     
  2. damitjim

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    Are you sure you're facing nose down?
     
  3. lesn8r

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    yeah, I'm sure. In desperation I tried nose up, to no avail
     
  4. Jeff48920

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    Counterclockwise??
     
  5. Ranger003

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    What are your gyro readings?
     
  6. lesn8r

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    yep, counter clockswise. Keep the idea coming.
     
  7. lesn8r

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    I will have to check them in the morning. What should I check for and/or expect?
     
  8. Jeff48920

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    Have you done an IMU calibration since the failure?
     
  9. lesn8r

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    Yes, I have. It was successful, subsequent IMU checks have come back no cal required
     
  10. snowghost

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    I'm not sure if it that's the issue but are you going too slowly?
     
  11. lesn8r

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    Hmmm, I don't know. I did slow down when things started failing. Perhaps I'll try speeding it up. Hopefully the rain stays away tomorrow!
     
    #11 lesn8r, May 25, 2015
    Last edited: May 25, 2015
  12. Deerstalker

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    Just had same problem but thanks to some on forum it's sorted. When you do your 360 keep going a bit further than normal on both horizontal and vertical I was at 360 plus around 90 and successful first time. Hope this helped you to.
     
    snowghost likes this.
  13. snowghost

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    Wow, that is good to know.
     
    Ghanz likes this.
  14. O.P

    O.P

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    Did you fix the compass problem.I am having the same issue
     
  15. snowghost

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    Not had an issue since the post in May.
     
  16. flyNfrank

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    Check youtube for a tutorial, or the app's library may have it as well. Several of us calibrate the aircrafts compass prior to each flight and or battery change.
     
  17. O.P

    O.P

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    I know how the calibration is performed, but it fails when I do it. This all started after a "critical" landing. I was able to recover aircraft with no damage, other than a rubber damper came off gimbal. I have done imu calibration and still nothing.
     
  18. lesn8r

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    For those who have asked; I had to return the unit. I worked with the vendor and they replaced my bird. I've had no issues with the new bird.