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  •   @ Paul N Braida M.E, yes you can swap out from another APM, and I have done the surgery. But you must have a hotair rework tool. And it is rather fiddely to be certain. The compass may be purchased new from Ebay in multiples of 5 for less than one from Digikey.  I believe that the M8N will work as a better solution that the Ublox 6N but not the 7. These GPS/Compass combos  can easily be purchased (Ebay), and your biggest task will be to double check the pinout and the 4 and 5 pin connectors.  I am not sure of the  offset that one would make in Mission Planner as one removes the compass from the PCB. This is a major consideration and config with the Naza M Lite and M V2. 

  • the easiest way is an ext compass, you can use a gps/compass one if you want, that is the APM 2.6

  • Can I swap out a compass from another APM?

  • oops! I meant external Compass.

  • Can I use an M8N compass/GPS unit on the APM 2.5 and configure parameters to external antenna?

  • You can use external compass

  • Looking for APM 2.5 compass help. Says bad compass health yet when connected to mavlink shows it working ok. Can compass be replaced?

  • I'm assembling a robocat 270 motors but I'm not shure if I have to use H or X config, It's have more distance side to side than front-rear, thank's

  • @ Thomas Stanley-Jones the tool that Cala suggested works great for servo plug type connectors and the pins and sockets can be found just about anywhere-hobby.

    As for the DF13 connectors I buy from Digi-key, here is the link to the CONN CONTACT 26-30AWG CRIMP TIN (pins), DF13-2630SCF

    and here is a link to CONN SOCKET HOUSING 4POS 1.25MM, DF13-4S-1.25C:

    I buy 2-6 pin housings and Digi-key sells up to 40 pin ones.

    The HK crimp tool I didn;t have much luck with and I have a similar tool that I paid $130 for and doesn't do any better.

      The best tool I found that works numerous types of pins/sockets(package says

     80 different types of terminals) including the Servo and DF15 is a:

    PA-09 Micro Connector Pliers by Engineer that you can get for under $40, works on 32-20awg wire, Molex, JST etc. pins.

    Hope this Helps-Don

  • T3

    @Warren http://ardupilot.org/copter/docs/common-loading-firmware-onto-pixha... Keep in mind that the last firmware compatible with APM are Copter 3.2.1 and Plane 3.3.0.

    Loading Firmware — Copter documentation
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Drone flying to non visible point

Hi there,I encountered a problem, while flying in auto mode, with approching to point that was not set by trajectory and is not visible after downloading mission from flight controller by Mission Planner. Does anybody encountered similar problem. The situation is that in the middle flight I stopped the UAV and uploaded new mission and after changing to auto mode it starts to fly in some direction. It goes straight to some point, so I assume it's not mechanical problem. I attached the link to…

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TAKEOFF WITHOUT USING GPS

Hi,Im working on a autonomous drones and im using JETSON NANO and flight controller PIXHAWK .Im able to control my drone by giving rc commands on the MAVLINK terminal itself by connecting it with PIXHAWK but now i want a python code from which i can do some operations like:takeoff,left ,right,forward,backward…and i am not using GPS…Can anyone please help me…

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1 Reply · Reply by tellinglean Oct 17, 2022

HELP quadcopter: one motor twitching and stuttering

Hello guys,I have a problem with one motor, do not spin and making a sound (videos in attachment), I changed the motor to another ESC and is work, so I checked the connections on ESC and all connections looking great. any ideas or something I can do, iam trying to build YMFC32 Brokking .thank youhttps://youtu.be/LagBqwGbixkhttps://youtu.be/PU20nCxApcs

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Will AHRS_ORIENTATION=8 for Arducopter 3.2.1 on APM 2.5 using a traditional Heli

I have been Reading Chris Olsen posts and watching his videos on Arducopter with traditional Helis using a Pixhawk.I have inherited an older Trex 450 heli with the old Align 3G FBL hardware.  The FBL controller appears to be bad.  So I have an old APM 2.5 without a compass or GPS on board.  I just want to replace the failed Align 3G FBL system with the APM.Now I have to mount the APM under the skids on the heli so the APM will be upside down.I have Two questions.1)  Is the AHRS_ORIENTATION=8…

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