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PixRacer with Ardupilot

Posted by Randy on February 9, 2016 at 4:47pm

This is a discussion to focus the feedback and support of ardupilot on the PixRacer board from AUAV.co.

We believe that all teething problems encountered are now resolved and so we recommend people load Copter-3.3.4 which is available for all multicopters through the Mission Planner's (and other GCS's) Install Firmware screens.  Note that because regular Pixhawks are still on Copter-3.3.3 the install icon may show Copter-3.3.3 but rest assured, Copter-3.3.4 will be installed (you can check the version by looking at the very top of the Mission Planner).

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Tags: apm:copter, arducopter, ardupilot, pixracer
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        • gervais > Vlad M. April 15, 2016 at 2:22pm

          You´ll be able to measure Voltage w/o arming the motors with the ACSP4 as well :-) Voltage measurement is done by a simple resistor divider (which requires diff. setup depending on FC)

  • T3
    Thorsten April 15, 2016 at 4:31am

    Hi Phillip and Nick,

    just in time with the new updates for the PixRacer in master I finished a new copter build.

    However, I am having problems connecting to the PixRacer. I tried Mission Planner (including beta) and APM Planner, different cables, USB ports, SD cards as well as AC3.3.3, AP3.5.2 as well as master. No success. I get "Error uploading firmware" or "No valid device found" or nothing is happening at all after downloading the firmware.

    It seems I cannot really connect to it. Connection basically works as it is downloading some parameters in Mission Planner but the "Standard Params" screen is empty. APM Planner says "Parameters Downloaded 0% 0/?". Anyway, both Planners say "Connected".

    All works fine with an older Pixhawk.

    Is there anything special to take care of? I never had a hardware failure on any *hawk so I hesitate to call it one :-)

    Any idea or suggestion what I should try?

    TIA,

    Thorsten

    • T3
      Thorsten > Thorsten April 22, 2016 at 4:29am

      Hi all,

      I had some additional problems connecting to Mission Planner (apart from outdated drivers).

      But these are now all solved with the latest beta version of Mission Planner:

      https://github.com/ArduPilot/MissionPlanner/issues/1231

      So in case you are experiencing problems just download the latest beta version. It also shows the new ATC_ tuning parameters in the Extended Tuning screen.

      Best regards,

      Thorsten

      Beta cannot download Params · Issue #1231 · ArduPilot/MissionPlanner
      Hi all, the current as well as the previous beta of Mission Planner connects to the PixRacer but the seems to be in some infinite loop while "Getting…
      • T3
        Thorsten > Thorsten April 22, 2016 at 5:41am

        Short update:

        There was another issue in Mission Planner causing problems to download the logs.

        But this was solved in minutes by Michael as well!

        So again make sure to update to the latest beta versions.

        Beta cannot download data flash logs · Issue #1233 · ArduPilot/MissionPlanner
        Hi Michael, the current beta of Mission Planner has some problems downloading data flash logs (tested on Win7 and Win10). I only have the German erro…
    • T3
      Thorsten > Thorsten April 16, 2016 at 3:48am

      Thanks to Nick I was able to solve it!

      It must have been a driver problem on my Win7 machine. On a new Win10 laptop and an OS X MacBook flashing was no problem.

      Looking forward to my fist tests with PixRacer!

    • Jon > Thorsten April 15, 2016 at 5:43am

      Thorsten

      I had exactly the same problem trying to upload v3.4 (2887e481) using Mission Planner 1.3.37 build 1.1.5949.13507

      On my Pixracer I had PX4 loaded. After unplugging and reconnecting I then tried to load v3.3 quad and this was successful. I then tried to upload v3.4 and it worked.

      Jon

      • T3
        Thorsten > Jon April 15, 2016 at 1:16pm

        Jon,

        thanks!

        I tried this as well. Older firmware versions, Rover, Plane as well. But unfortunately without success. 

      • Jon > Jon April 15, 2016 at 6:20am

        Update

        I then had problems calibrating the accelerometers in both Mission Planner & QGC. Went back to v3.3 and managed to calibrate the accels in QGC. I will try again with v3.4 a bit later today.

        • Jon > Jon April 15, 2016 at 12:05pm

          Connected to Mission Planner and managed to upload v3.4 but then couldn't reconnect to Mission Planner. Opened QGC and the Pixracer automatically connected. Calibrated accelerometers and compass successfully. Went back into Mission Planner and it connected. However, I just tried connecting to Mission Planner two minutes ago and it failed to connect but with QGC no problems connecting. It may be the way I've got my Windows 10 set up.

  • Michael Burmeister April 15, 2016 at 2:53am

    I just recently did an Auto Tune to test it with the latest version and after the Auto Tune the PIDS were way off and the copter did not respond at all.  Don't know what's going on there but had to put them back to what they were.  Did notice that the I and P where set to the same after Auto Tune which to me seemed odd.

    If I get some descent weather I will try it again and post the results.

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