Ryan
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Alt. Hold & Loiter sudden drop – Can't figure out why

Started this discussion. Last reply by Ryan Jun 10, 2014. 10 Replies

Hey all –I'm on my 3rd build with APM 2.6, about a few hundred flights under my belt.  So far it's been a dream platform to work on.  Done around anything and looking to enter pixhawk this…Continue

 

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Latest Activity

Ryan commented on Euan Ramsay's blog post APM into 230 size quad
"Shoot.  Just wrote a post and deleted it.  Take 2: My team and I are launching a 3mm near-indestructible, solderless frame for FPV racing. The frame offers modularity for full sized electronics and flight controllers that need more room.…"
Oct 21, 2014
Ryan commented on Euan Ramsay's blog post Mini hex + autotune = success.
"Hey Euan – Care to share your PIDs after the auto tune?"
Sep 8, 2014
Ryan commented on Euan Ramsay's blog post APM into 230 size quad
"@Savet, you've been one step ahead of me during this whole build.  Found your notes on the APM Forum.  Changing my IMAX rates to 1800 solved the over correction problem.  Off to the races for me.  I'm good to go.…"
Sep 1, 2014
Ryan commented on Euan Ramsay's blog post APM into 230 size quad
"Starting to pick up the paces, my tuning falls short with aggressive stopping at high speeds, it pitches backwards and almost falls on itself.  Had a long day tuning with no results.  Video (stab mode) here, but also occurs in full acro:…"
Sep 1, 2014
Ryan commented on Euan Ramsay's blog post APM into 230 size quad
"Did rc5 today as well – ran a quick PID tune and no oscillations @ 42 Hz.  Put it down the street and back.  Flies like a razor blade.  Thank you APM community.  Let the races begin."
Aug 17, 2014
Ryan commented on Euan Ramsay's blog post APM into 230 size quad
"Just saw RC5 hit – does this include leonard's changes?  I see some Acro_expo in the release notes.  Getting excited. :)"
Aug 14, 2014
Ryan commented on Euan Ramsay's blog post APM into 230 size quad
"@Sevet – Any updates with your oscillations?  I see on the whitespy mini thread (regroups) several look like their running with proper tuning.  I don't want to resort to the very basic CC3d for my mini : /"
Aug 11, 2014
Ryan commented on Euan Ramsay's blog post APM into 230 size quad
"Wow that sounds great.  I love my apms.  Can't wait to use it for mini racing. Goodluck leonard."
Aug 2, 2014
Ryan commented on Euan Ramsay's blog post APM into 230 size quad
"Now I'm stalking Shay's youtube – but I notice he has oscillations with his mini like mine does on heavy throttle.  @Euan, have you eliminated?  Is your acro on par with CC3D? https://www.youtube.com/watch?v=-79MrxgR9Ro"
Aug 2, 2014
Ryan commented on Euan Ramsay's blog post APM into 230 size quad
"@Shay would also like to see your settings.  Trying your filter param and still noticing oscillations on heavy throttle.  Might increase. I've gone back to front and believe my PIDs are very strong.  Measured IMU and it's…"
Aug 2, 2014
Ryan replied to Ryan's discussion Alt. Hold & Loiter sudden drop – Can't figure out why
"It's a 2.6 – has a separated bark and it's on a stand. I've used it hundreds of times and its worked perfectly. Honestly I think it was just in need for a hard reset.  Sometimes you have to turn things off and on…"
Jun 10, 2014
hal replied to Ryan's discussion Alt. Hold & Loiter sudden drop – Can't figure out why
"Does it fly ok when its cloudy?  I had one that on a cloudy day would hold alt ok.  But sunny days not. Even if the APM is in a case, it needs black tape over that area on the case, or the foam over the barometer inside the case.  It…"
Jun 10, 2014
Sebastian S. replied to Ryan's discussion Alt. Hold & Loiter sudden drop – Can't figure out why
"As jg already ask, is your baro protected against light? I did a test where i powered up the APM in shadow and faced it than in the direct sunlight. I got a alt reading of 140m, in shadow it was than again 0m!"
Jun 9, 2014
Ryan replied to Ryan's discussion Alt. Hold & Loiter sudden drop – Can't figure out why
"Wasn't like that.  Was almost 0% throttle.  It fell out of the sky.  After a couple trials, I had it shoot up at 100% throttle. All of which I had to recover with stability.  Once I reset the board and recalibrated, the…"
Jun 9, 2014
Ritche M replied to Ryan's discussion Alt. Hold & Loiter sudden drop – Can't figure out why
"Is the throttle in the mid position when doing the Alt Hold?  If it is below the mid position, it will surely decrease the altitude."
Jun 9, 2014
Ryan replied to Ryan's discussion Alt. Hold & Loiter sudden drop – Can't figure out why
"Thanks jg.  I've done a few apm builds – not sure why this happened. It's very balanced, the apm is protected and above the props, and there are no vibrations. I reset the board, calibrated, setup my PIDs and it is solid as a…"
Jun 9, 2014

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