Glenn Hollowell
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  • Homer, Alaska
  • United States Minor Outlying Islands
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Pixhawk automatically lands when battery falls below 25%, followed by vortex ring condition, then crash

Started this discussion. Last reply by Andre K. Oct 8, 2016. 1 Reply

Hey all- I've got Pixhawk set so that when my battery falls below 25%, the aircraft automatically descends and lands. However, when this happens above 20 feet, the aircraft develops vortex ring…Continue

Tags: vortex, stall, helicopter

APM Mission planner v2.

Started this discussion. Last reply by Glenn Hollowell Feb 7, 2016. 4 Replies

APM Planner v2.0.18 installs fine, then crashes when run on a current Win8 machine.Here's the Dr. Ming output:apmplanner2.exe caused an Unknown [0xC000041D] Exception at location 036B5171 in module…Continue

 

Glenn Hollowell's Page

Latest Activity

Jerald Thompson replied to Glenn Hollowell's discussion Bad Compass Health in the group PIXHAWK
"I'm running APM 2.8 hardware, Mission Planner 1.3.44 build 1.16240.11550, and ArduCopter V3.2.1 (36b405fb). I have looked through the entire parameter list and cannot find COMPASS_DEV_ID listed there.  Are you perhaps running different…"
Feb 13
Mauricio García replied to Glenn Hollowell's discussion Bad Compass Health in the group PIXHAWK
"Hi Glenn. Few months ago I experimented some compas troubles, similar to yours. (Look at http://diydrones.com/forum/topics/external-compass-offsets-too-hi-hmc5883l-gps-ublox-neo-m8n) I found that the gps that hast active antenna make…"
Feb 13
Glenn Hollowell replied to Glenn Hollowell's discussion Bad Compass Health in the group PIXHAWK
"I did just that. Didn't work after installed in the 3DR X4. So then, I swapped in the GPS/compass from the bird that I'd robbed the second Pixhawk from, and you guessed it, everything worked fine. The kicker is that when removing the…"
Feb 13
Jerald Thompson replied to Glenn Hollowell's discussion Bad Compass Health in the group PIXHAWK
"Would it be possible to swap this "uncooperative" Pixhawk with one of your other good Pixhawk controllers that you know works properly?  It might be a bit of a hassle to do this, but this would either confirm or deny your suspicions…"
Feb 13
Jerald Thompson replied to Glenn Hollowell's discussion Bad Compass Health in the group PIXHAWK
"Replacing the GPS/Compass module is a possibility, that is for sure.  I'm still working on the problem.  Thanks for your input.  I'll get back with you later...."
Feb 11

MR60
Hugues replied to Glenn Hollowell's discussion Bad Compass Health in the group PIXHAWK
"It happened too in my experience to have a GPS+compass module that did not display anything in mission planner's compass calibration window. Looking at the compass parameters it was also not detected by Pixhawk (if it is detected you get a…"
Feb 11
Jerald Thompson replied to Glenn Hollowell's discussion Bad Compass Health in the group PIXHAWK
"Thought I would chime in here with a little tid-bit of an experience I had just today while trying to calibrate an external compass feeding into an APM 2.8 FC.  Over the last three days I have tried probably a dozen times to cal this compass…"
Feb 10
Glenn Hollowell replied to Glenn Hollowell's discussion Bad Compass Health in the group PIXHAWK
"I've got two GPS/compass setups. Same errors with both. If there is a wiring problem it.s gotta be inside the Pixhawk unit."
Feb 8
Glenn Hollowell replied to Glenn Hollowell's discussion Bad Compass Health in the group PIXHAWK
"The only time that I got the compass calibration dots is when the external compass is disconnected. I went through the dot chasing exercise and was able to capture offsets."
Feb 7
Martin Lachance replied to Glenn Hollowell's discussion Bad Compass Health in the group PIXHAWK
"Ok. I assumed the arrow is pointing forward. But we need to be sure its set for forward arrow in the config/tuning settings as it can be set for alternate directions in the settings. I fought with similar issues with two new Pixhawk (which both…"
Feb 7
Glenn Hollowell replied to Glenn Hollowell's discussion Bad Compass Health in the group PIXHAWK
"Thanks for responding Martin. "Yes" to both questions: arrow is facing forwards, and light does flash blue. Both of the external compasses report "bad health" when plugged into this Pixhawk. I'm starting to think that this…"
Feb 7
Martin Lachance replied to Glenn Hollowell's discussion Bad Compass Health in the group PIXHAWK
"I'm reading two separate problems here. One, bad compass health from #1 external compass. Two, as you put it, "have yet to get good GPS". Does the "big" LED remain flashing blue? (Acquiring satellites). In config/tuning, is…"
Feb 7
Glenn Hollowell replied to Glenn Hollowell's discussion Bad Compass Health in the group PIXHAWK
"Okay, with 12c and GPS unplugged I can do a compass calibration. With just the GPS plugged in (and 12c cal unplugged) I can arm and spin the motors. However- I am not getting a GPS signal. I've tried this with my two uBlox units outside with an…"
Feb 7
Martin Lachance replied to Glenn Hollowell's discussion Bad Compass Health in the group PIXHAWK
"No dots? What happens if you uncheck #1 external compass and check #2 (internal) compass then run compass calibration?"
Feb 7
Glenn Hollowell replied to Glenn Hollowell's discussion Bad Compass Health in the group PIXHAWK
"Nope, no dots in the windows. I found that curious and possibly significant."
Feb 7
allan replied to Glenn Hollowell's discussion Bad Compass Health in the group PIXHAWK
"you have no dots in the progress window? so your error is with the compass calabration?"
Feb 7

Profile Information

About Me:
Like to count fish.
Please tell us a bit about your UAV interest
Want to count fish using drones.
Hometown:
Alaska, (not Anchorage)

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