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APM 2.5 Log help

Posted by Julio jo on January 5, 2015 at 12:06pm

Hi All, 

I have been working with my apm for a while and i have never really been able to fly it with much success.

Here is where is am at:

Old version of 3.2 no issues  new version of 3.2 i get bad gyro health.

No problem i disabled the the pre-arm check and took it out to my back yard and hovered for a few seconds and them i started to playing with it. Out of nowhere it pitched down and darted it forward with out warning. I also feel like its hit and miss on the direction that i tell it to go. meaning 1 out off three times that i tell it to go left at least on time it will go right. 

Could Be my remote or it could be the APM I dont know i do know that the pitch is jittery without moving.

I am trying to go through the logs, but i have no earthly idea if what i am looking is correct.

can anybody give me a hand?

regards, 

Julio Jo

2015-01-04 20-26-10.tlog

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Replies

  • Andre K. January 6, 2015 at 12:15am

    upload .log from APM.

    Also; great problem solving when disabling pre-arm checks - why would anybody program such a annoying feature ? When a fuse blows at your home, you'd probaply use a big shunt instead to disable future fuse-problems :)

    • Julio jo > Andre K. January 6, 2015 at 1:10pm

      Andre, 

      so i dont have .log i only have .tlog and the reason for it that CLI is no longer support in 3.2 that i use option 2 the telemetry logs that mission planner out does when wireless telemetry is connected.

      • Julio jo > Julio jo January 6, 2015 at 1:30pm

        i did post a log file but it a .tlog is that not the same?

      • Andre K. > Julio jo January 6, 2015 at 1:28pm

        if I understand you right, you cannot find it in log download ?  - and download it over telemetry or USB ?

        that's unfortunate - that would be the best chance for finding out what happened.

        • Julio jo > Andre K. January 6, 2015 at 5:24pm

          i was looking thru my logs and i i found some .log files. hope these are good

          regards

          2015-01-06 19-14-17 5.bin.log

          2015-01-06 18-57-04 4.bin.log

          https://storage.ning.com/topology/rest/1.0/file/get/3702774700?profile=original
          • Andre K. > Julio jo January 6, 2015 at 11:55pm

            3702833211?profile=originalSomething have become loose/unbalanced during the flight, you got very bad vibrations midair. May be a part of a prop that fell off, a motor came loose, or something like that.  The vibrations are far more that what's supposed to be flyable.

            The problems start after line ~2650 where you do a fast throttle change  (which is not an excuse for something to fail)

            The graph scales are not here due to picture width restrictions, but the IMU.AccX,Y scale is -45...+45 !  ()

            • Julio jo > Andre K. January 7, 2015 at 6:36am

              i wish i had the video for what happened. the thing darted forward about 5 yards and hit my fence. broke a two props and one of the arms.

              That was some great analysis. 

              so in your opinion the Gyro and acc are in good working order?

              • Andre K. > Julio jo January 7, 2015 at 7:23am

                during flight they seem fine - but no, the fact you disabled the prearmcheck does not indicate everything is in order, but not necessary critical.

                You should recalibrate both, and enable armingcheck to be sure.

                • Julio jo > Andre K. January 7, 2015 at 7:27am

                  i have calibrated several times and the pre-arm will not let me arm the quad do to a bad gyro health.

                  the voltage on the regulator is putting out the correct voltage. 3.27 

                  • Andre K. > Julio jo January 7, 2015 at 7:33am

                    never seen a problem like that - unable to tell how critical it may, or may not be.

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