Comments

• Phil Horner February 5, 2016 at 8:05pm

  The Pixhawk in the Sky Hunter surely is a weird beast. Initially I couldn't complete an ACCEL calibration as it would freeze up after each step of laying it on its side, front, back etc. At the time I was getting constant pre arm warnings of AHRS, Inconsistent compass etc etc. I installed copter and calibrated everything and had noticeable fewer issues. Re installed plane and found that I could now calibrate ACCEL although still getting a lot of AHRS warnings. Been raining here for the last couple of days so have been unable to place it outside to obtain a good gps lock. I will let you know how I get on when I do.
• Justin February 5, 2016 at 7:48pm

  I also have multiple Pixhawks and each have their unique issues. At one time I setup 2 Pixhawk copters, both identical builds, PIDs the same, and they behaved differently. Even with identical GPS/Compass's, one got a GPS lock immediately, the other took forever. Pixhawk has a mind of its own!
  
  I recommend you start over! Install plane so it clears out copter, and then reinstall copter, and complete all the mandatory hardware installs.
• Phil Horner February 3, 2016 at 10:58am

  Rodney

  Thanks for replying. I will do as you suggest and get back to you.
• 

  Rodney Johnson February 3, 2016 at 4:35am

  Phil
  Try loading a copter program onto pixhawks. Do a mock setup and take the pixhawk outside during calibration.
  If everything works without error then you know that is not the pixhawk or its hardware it's a issue with Arduplane V3.5.0 code.
  Or load with an older version of Arduplane and see if you get the same issue.
• Phil Horner February 3, 2016 at 12:49am

  Hi Guys
  Although I've got two Multi Rotors using Pixhawks, I'm still very much a novice, and I'm pleading for help with my problem.
  I've fitted a Pixhawk to my first plane (Sky Hunter)
  RX EZHUF 8 ch lite
  TX Taranis
  Mission Planner Ver 1.3.32.9 build 1.1.5778.1142
  Firmware Arduplane V3.5.0
  1/ getting extreme latency from TX to servos of about 1 sec, although sometimes it seems longer.
  2/ Bad AHRS. After googling the subject, I see a number of people have encountered it but no solutions.
  3/ Can't calibrate accelerometers. Mission planner basically freezes every time I hit a key to receive the next instruction to , say, place on the left side.
  4/ In my efforts to sort these issues out, I noticed that when I go to the Terminal function, pick Pixhawk from the drop down menu and hit connect, I get a never ending stream of what looks like computer programing scrolling up the screen, and can't use any of the other functions as it's locked into this streaming.
  Can someone please help before I do something stupid like go buy a NAZA.
• 

  Larry A Amati January 8, 2016 at 3:04pm

  randy said that some pixhawks only have 1mb ram and not the reported 2mb ram.is there a way to check before you purchase a new pixhawk or pixhawk clone?

  Thanks
• 

  Clifton Hipsher December 21, 2015 at 3:41pm

  Short answers:

  1.  You do not need to modify the firmware.  The flight controller doesn't care what kind of payload the aircraft is carrying.

  2.  If something isn't broken, don't try to fix it.
• 

  salem hasan December 21, 2015 at 1:58pm

  Mark,

  thanks to your comment but realy I want to modify the software for the pixhawk so I can get benifit from all the capabilities of it in order to use any payload I want

  I have downloaded the PX4 toolchain with eclips for windows but I don't know yet from where I must start

  sorry of my silly questions but Iam a new user and don't have any experience in this domain...

  Regards
• 

  mark whitton December 20, 2015 at 4:02pm

  Salem,

  Pixhawk is a robust autopilot for a fixed wing aircraft by itself when loaded with Pixhawk or PX4 software.  Do you mean that you are to use the Pixhawk in an aircraft design or perhaps modify the software for the Pixhawk (which is open source)?
• 

  salem hasan December 20, 2015 at 1:18pm

  Hi

  Iam a master2 student and my project is to design a robust (no bugs) autopilot for fixed wing aircraft using pixhawk.

  how and from where should I start???

  I have the sufficient motivation to do this...

  Any help plz