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  • Eric Pianori September 1, 2015 at 5:58pm

    Hi all, 
    I have a APM 2.5 with the latest firmware. It worked great up to the point that I changed TX. I used a Hitec A9 before. I sold it and bought a Graupner MC-32. 

    I have gone through the setup and it seems to go through the TX calibration process just fine. I calibrated the ESCs fine. For the life of me I cannot get to arm the APM board and get the motors spinning. I make sure to be in the stable mode prior to trying to arm.

    Also, I noticed a drift with the GPS when the Quad is not even flying. So I get 3D lock with 9 SATs but on the map it shows that the quad is moving, where in actuality is not. 

    Anyone else had any issues getting the Graupner radios to work with APM, or do you think that there is something wrong with the controller board? 

    I updated to the new firmware and APM Planer and now I have a suspicion my radio is creating some kind of problem with the APM Fail Safe. APM Planer keeps on giving me a voice message " PreArm: CheckFS_THR_value". So I have tried to set the throttle Fail Fafe. 

    I set the Fail Safe with the Planer, but it does not seem to make any difference. I am frustrated. I'm sure it is something simple, but I am not seeing it. I must not be doing it right. 

    In  my frustration this morning I ordered a newer board version APM 2.8 with a GPS hoping that it is the board. Any way, any help will be greatly appreciated. 


    Thank you

  • Anders Wikstrom January 6, 2015 at 3:44am

    I experience exactly the same issue. Having 1 Graupner MZ-24 bould to a GR-24 talking to the Pixhawk running the latest firmware.
    The GR-24 output all sensor signals + SUMO so just for a test I connected a servo on CH3 (Throttle). This servo moves to FailSafe position when powering of the transmitter but SUMO output remains. This seems to be a Graupner bug!

    There is another thread about this here: http://diydrones.com/forum/topics/pixhawk-and-graupner-mz24-gr24-pp...

    /Anders

    • Anders Wikstrom > Anders Wikstrom January 6, 2015 at 1:21pm

      I got it working :-) Watch the thread in my previous post.

      Anders

  • bulent January 31, 2014 at 7:19am

    3692937742?profile=originalthis is my ov3rquad 600 class now 

  • bulent January 26, 2014 at 1:40pm

    3692933480?profile=originalhallo i am from the nederlands i use also the mx-12 hott and the gr-12 hott for my ReadytoFlyer apm 2.6 whit osd and 433mhz radio and the powermoduledo you guys have a suggestion how to configurate the aux 1 & 2  i will use my ov3rquad frame 600 class  thank you 

  • wes arends August 27, 2013 at 6:03am

    I have the Graupner MX12 and had same trouble,

    I started a new model and left the fail-safe on the MX12 to be determined later ( TBD )

    If you don't start a new model you can't undo the fail-safe.

    Set fail-safe in APM 2.5 only.

    Hope this helps

    Wes

  • Michal Rus July 30, 2013 at 10:24am

    I have the same problem but I use ArduPlane 2.74b, APM2.5 and Graupner MX-12 Hott 6 channel TX/RX. To configure Graupner and APM seems to be a problem.. I hope I find someone who has done it..

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