"I had a similar problem with my quad. I never went out of stabilize, though. It was night and I hovered in the front yard for a while, then went straight up. I pushed forward and everything seemed fine until I tried to pull…"
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Sanjaya Kumar
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Sanjaya Kumar's Discussions
Arducopter Crash analysis request
Started this discussion. Last reply by Dusty Starbucks Mar 6, 2012. 9 Replies 0 Likes
Yesterday I had several successful tests of Loiter mode, so today I decided to continue testing in windier conditions. After confirming that I had a GPS 3D fix, I switched to Loiter mode. It was…Continue
APM 2.0 daughterboard hardware change?
Started this discussion. Last reply by Don Brooks Feb 10, 2012. 4 Replies 0 Likes
I noticed that the ordering options for APM 2.0 in the diydrones store have changed. You can order the APM 2.0 with either the GPS or the magnetometer (but not both).My order (from Dec 12) is still…Continue
Magnetometer Eagle Files, schematic?
Started this discussion. Last reply by Alex Oct 17, 2011. 3 Replies 0 Likes
After a recent crash, the capacitor at the back of my magnetometer (v 1.2) sheared off.Instead of ponying up for a new sensor, I wanted to see if I could salvage the existing one.Can someone give me…Continue
AC 2.0.23 test report
Started this discussion. Last reply by Olivier ADLER Jun 11, 2011. 1 Reply 0 Likes
I put the quadcopter through its paces outdoors today. It was fairly windy -- about 15mph to 20mph. STABILIZE: I had soldered the three low-pass jumpers on the board. Also, I had increased the PID…Continue
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ModeratorGraham Dyer replied to Sanjaya Kumar's discussion Arducopter Crash analysis request
"Sorry but this is NOT the 'leans', I have analysed many of my logs showing the leans very clearly and this log shows nothing of the sort!
The log shows pitch stick input and the quad responding in that direction. Please don't confuse…"
Sanjaya Kumar replied to Sanjaya Kumar's discussion Arducopter Crash analysis request"Thanks for confirming, Marco. I only wish I had read the entire "2.4.1" released thread before I took it out for a spin on Monday."
DeveloperMarco Robustini replied to Sanjaya Kumar's discussion Arducopter Crash analysis request
"Sounds like leans problems.I'm sorry, i advise all users to stay at the gound and wait the exit of 2.4.2/2.5.0 for this reason.Bests, Marco"
Sanjaya Kumar replied to Sanjaya Kumar's discussion Arducopter Crash analysis request"I just saw the new thread, "Massive Drift Issue and accumulated error. Is it a PID issue?". Jason Short responded by saying there is a known issue and a fix is in the works.
My guess is that I encountered the same issue as well (Point [4]…"
Sanjaya Kumar replied to Sanjaya Kumar's discussion Arducopter Crash analysis request"Thanks. It does appear that I lost orientation. I'll try and correlate these logs with the tlog. There it seemed like it yawed only shortly before the crash, but then I can't explain the orientation issue.
It was definitely not in Simple…"
ModeratorGraham Dyer replied to Sanjaya Kumar's discussion Arducopter Crash analysis request
"The graph of Roll/Pitch & Roll_In/Pitch_In is below. While I'm not an expert by any stretch of the imagination, it does look like your quad was commanded the wrong way, the pink line is your input and the green line is what the quad was…"
Sanjaya Kumar replied to Sanjaya Kumar's discussion Arducopter Crash analysis request"Graham,
Thanks for offering to take a look. I've attached the log file below.
Not sure why you can't view the tlog file -- I checked again by downloading from the forum and I was able to view it. But anyway, I hope you can view the log…"
ModeratorGraham Dyer replied to Sanjaya Kumar's discussion Arducopter Crash analysis request
"Have you got the .log file too, as I couldn't get your .tlog to play."
Sanjaya Kumar posted a discussionArducopter Crash analysis request
Yesterday I had several successful tests of Loiter mode, so today I decided to continue testing in windier conditions. After confirming that I had a GPS 3D fix, I switched to Loiter mode. It was windy and gusty, but the quad seemed to be doing well. After a while, though, it looked like the deviations from the loiter position were getting larger, so I switched back to Stabilize mode to bring it back to base.That’s when the problem started. The quad started to move away from me. And very rapidly…See More
Don Brooks replied to Sanjaya Kumar's discussion APM 2.0 daughterboard hardware change?"People who already have an external GPS and / or magnetometer may not want it. People who prefer, or must mount these modules externally, such as with certain CF frames or fuselages. People who have unusually high RF noise from their airframe. The…"
Sanjaya Kumar replied to Sanjaya Kumar's discussion APM 2.0 daughterboard hardware change?"Well, I hope you are right.
But in that case, why go through the trouble of creating all these delete options? After all, one can "delete" the magnetometer (or GPS) via software configuration if it is not needed for a particular…"
Michael Pursifull replied to Sanjaya Kumar's discussion APM 2.0 daughterboard hardware change?"Further conjecture (and that is all I can offer personally thus far) is that there is a fourth daughter board, and that all four include the card slot. One includes the two sensors and the card slot, while two include only one of the sensors and a…"
Michael Pursifull replied to Sanjaya Kumar's discussion APM 2.0 daughterboard hardware change?"That is now how I understand the ordering works for this product.
Here is my understanding (my order is still "processing", so this is my interpretation.)
You can order APM2.0. By default it comes with both the GPS and Magnetometer.
As an…"
Sanjaya Kumar posted a discussionAPM 2.0 daughterboard hardware change?
I noticed that the ordering options for APM 2.0 in the diydrones store have changed. You can order the APM 2.0 with either the GPS or the magnetometer (but not both).My order (from Dec 12) is still wait listed. Will I now have to choose between these two options or will I get a board with both the GPS and mag included?See More
Sanjaya Kumar commented on Ihab Ali's blog post Arducopter 2.3 tuning Stab_P for Nav video scenarios"Hi Ihab,
Recently, I tried using the tuning process shown for a different platform (openpilot). See the second video on this page:
http://www.openpilot.org/getting-started/
The idea is to fly it in rate (ACRO) mode and tune the gyro parameters (i.e.…"
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- About Me:
- Software engineer.
- Tell us a bit about your UAV interest
- I've been building model airplanes since I was a kid. Free flight, control line, RC.
Also love programming.
This project is awesome since it combines my many interests!
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- Fremont, CA
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