About

Gender

Male


About Me:

I am a Newbie working on my first self-build Multirotor. Its a Hexacopter with APM board and Turnigy 9x Tx/Rx.


Please tell us a bit about your UAV interest

Just Fun...


Hometown:

Hamburg


Activity Feed

Nils Heidorn replied to Nils Heidorn's discussion APM 3.2.1 Very bad Loiter, how to "debug" ? Any hints ?
"Hi !
Please see a log attached, showing how i keep swithcing to loiter and "saving" the Hexa by switching back to alt hold as it wanted to fly away.
Any help ?

Greetings,

Nils2015-05-29 21-17-41.7z"
Jun 1, 2015
Nils Heidorn replied to Nils Heidorn's discussion APM 3.2.1 Very bad Loiter, how to "debug" ? Any hints ?
"HELP :-)
(aka "bump")
Is there no kind soul that can put me on the right tracks to this problem ?
I cannot find a reason why Loiter is so all-over-the-place.
I tried to gather facts in the postings above, if there is something missing to help me,…"
May 28, 2015
Nils Heidorn replied to Nils Heidorn's discussion APM 3.2.1 Very bad Loiter, how to "debug" ? Any hints ?
"Hi again,
i erased the EEPROM with arduino IDE, flashed 3.1.5 and redid calibrations.
Same Problem, all looks fin but as soon as i activate Loiter the Hexa tries to "run away".
Again i looked at the logs: started out with 8 sats, went to 10 sats…"
May 25, 2015
Nils Heidorn replied to Nils Heidorn's discussion APM 3.2.1 Very bad Loiter, how to "debug" ? Any hints ?
"Hi !
Meanwhile i checked the log again and can be 100% sure that the GPS Position itself is perfectly precise when i activated Loiter (I am using the APM Analyzer Software). So in my last test flight where i engaged Loiter 9 times (with harsh…"
May 25, 2015
Nils Heidorn replied to Luke's discussion Compass help No mag data but compass good?
"I dloaded old Mission Planner versions -> e.g. version 1.3.5 is showing an animated coordinate System and sample points. No "error 99" or the like, everything okay.
So newer MP's must be buggy, right ?

Greetings,
Nils"
May 25, 2015
Nils Heidorn posted a discussion
Hi !I have a small (370 mm) Hexa running 3.2.1 on a Crius APM clone with a Ublox 8 GPS / Compass combo.AFter some stupid mistakes it works ***perfect*** in Alt-Hold and the Heading is spot on as far as i can measure ( i point the Copter towars a…
May 25, 2015
Nils Heidorn replied to Luke's discussion Compass help No mag data but compass good?
"Hi !
I am having the same situation.
I am using a 2.6 APM with external GPS/mag (Crius APM clone & Ublox 8).
When calibrating it does not rotate the coordinate systems and does not show points.
It also has the error 99 on both mags.
But if i am…"
May 25, 2015
Nils Heidorn replied to Nils Heidorn's discussion ArduCopter 3.21 on APM 2.6 Hexa: strange yaw "pumping" and unbalanced motor output
"Hi !
After a much better weigth distribution and several autotuning runs AND adjusting the YAW Gains (increasing them) i have a nice behaviour now !
If i take a look at Yaw vs. desired Yaw i still can see a +- 1 degree "alternating" curve in yaw…"
May 25, 2015
Nils Heidorn replied to Luke's discussion Compass help No mag data but compass good?
"Hi Luke,
that sound like my current craft !
GPS works fine and on the ground MP shows the correct heading and Motor Interference is <1%.
But The Analyzer shows the same "no mag data" stuff and i have GPS glitches every 3 minutes or so.
BUT my loiter…"
May 22, 2015
Nils Heidorn replied to Nils Heidorn's discussion ArduCopter 3.21 on APM 2.6 Hexa: strange yaw "pumping" and unbalanced motor output
"This is the Top view, i *assumed* the cog is on the axis of the top and bottom motor (or in APM speech: on the M2-M1 axis).
This is where it is balanced right now.
I guess i have to push the battery further backwards.

Is there a good site…"
May 20, 2015
Nils Heidorn replied to Nils Heidorn's discussion ArduCopter 3.21 on APM 2.6 Hexa: strange yaw "pumping" and unbalanced motor output
"Oh damn, if the chan corresponds to the RCout pins i can see what you are seeing.
5 & 3 are on high load which are the front ones, 4 & 6 are lazy, geeeez whoever found it funny to have 2 ways of numbering the motors is to blame  ;-)

I will check if…"
May 20, 2015
Nils Heidorn replied to Nils Heidorn's discussion ArduCopter 3.21 on APM 2.6 Hexa: strange yaw "pumping" and unbalanced motor output
"Hi !
Hmm, its my first hexacopter in this "spider" configuration, but the COG should still be in at the intersection of all motor axis, right ?
Because thats how i trimmed it :-) Would be funny if its THAT stupid.

Yaw --> tuning: Do you mean PID…"
May 20, 2015
Nils Heidorn replied to Randy's discussion Copter-3.3 beta testing
"Hi !
Thank you for the quick answer. I am fine with 3.2.1. I guess i will wat for a killer feature and then upgrade to Pixhawk. APM 2.5 & 2.6 clones are now sold for < $40, WOW :-)

Nils"
May 20, 2015
Nils Heidorn replied to Randy's discussion Copter-3.3 beta testing
"Hi !
Would it be possible to compile for APM when disabling some of the options ?
(In the .h file only flash savings are mentioned, no idea of CPU and RAM savings).

Any hope for that ?

Greetings,

Nils"
May 20, 2015
Nils Heidorn posted a discussion
Hi !Thats a long title for my problem :-)I have 2 Problems:When i switch to Alt Hold in a relatively windstill environment the copter yaws CW or CCW and then corrects itself back. E.G. in 10 seconds it can do this 2 to 3 times. It also drifts a bit…
May 20, 2015
Nils Heidorn commented on Hans Miller's blog post Useful tips for log analysis
"Hi all !
I tried to follow this example and noticed the missing / different values in NTUN as well.
I am clueless although i found this article about a Bug in MP concerniung column names in logs:…"
Jan 6, 2014