Please tell us a bit about your UAV interest
It looked like a fun project that combined my love of open source and RC aircraft
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"I wonder if this is anything like this issue I experienced with my old APM 2.5:
http://youtu.be/0I1UrL2SJ8s
http://youtu.be/MHn28Xn52tU"
http://youtu.be/0I1UrL2SJ8s
http://youtu.be/MHn28Xn52tU"
"Here is my video showing compass interference testing
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"Just to throw an opinion into the mix. I was unable to justify the price of the GoPro after trying a Sony HDR-AS15. I may buy a GoPro eventually but this was half the price and still shoots beautiful 1080P video at 60fps.
All of the video in this…"
All of the video in this…"
"In the beginning of this video I play with light interference on the baro. I've fixed my problems by painting the inside of the APM case with liquid electrical tape."
"Did you follow my test procedure exactly? This problem is actually hard to produce.
Allow APM to relax to ambient temperature.
Power on APM
Connect to Apm with MP.
Arm APM
Heat IMU. Mine only requires about a 10F difference.
It is entirely…"
Allow APM to relax to ambient temperature.
Power on APM
Connect to Apm with MP.
Arm APM
Heat IMU. Mine only requires about a 10F difference.
It is entirely…"
"I'm sure I do somewhere. I will try and find it. It would be the tlog from the MP session recorded in the first youtube video shown at the start of the blog. I can reproduce it tomorrow easily if I need to. "
"Deleted my own comment since autocorrect made it wrong!
@Andrew - Thanks for the full explanation.
@Joe - Can you give it a test while armed?
Just so I'm clear. I do not believe this to be a bug or anything wrong with the code. This is simply…"
@Andrew - Thanks for the full explanation.
@Joe - Can you give it a test while armed?
Just so I'm clear. I do not believe this to be a bug or anything wrong with the code. This is simply…"
"@Eagle - I don't know how the Arduplane code responds to barometer drift due to temperature. It's not hard to set up and test. Give it a try and report back.
@Andrew Tridgell - I did the ultimate realistic experiment. I carried it outside. No…"
@Andrew Tridgell - I did the ultimate realistic experiment. I carried it outside. No…"
"I've posted my findings and conclusions regarding heat interference in a new blog here http://diydrones.com/profiles/blogs/temperature-changes-can-cause-u..."
Short Story:As this video shows the APM gyro is sensitive to heat changes after it is powered on. Be careful that you allow your APM to acclimate to the flying conditions before powering it up for the first time. This doesn’t seem to take more than…
"I think your response is a little stronger than I would support. I don't really intend to discuss the meaning of DIY, fault or responsibility here. I'm just testing, learning and contributing what I have learned.
I also can't call this a hardware…"
I also can't call this a hardware…"
"It doesn't seem to be a set amount of time before the INS command and MP locks up. Sometimes it's 15 minutes sometimes its a few hours. When I was initially testing I was not seeing failures for a few hours. (As the gyro sloooooowly heated on my…"
"@Craig Elder I actually tried that but the mission planner seems to crash after streaming the raw data for a while. It was what I first used in testing but couldn't really use for the videos. (It might just be my mission planner but I didn't…"
"@Tom Mahood
1. I'm not sure. I only own one APM so I can't make any comparisons. I experienced some random roll overs from prior to 2.8 so I think I've had this problem for a while.
2. I haven't tried to figure out exactly how much of a difference…"
1. I'm not sure. I only own one APM so I can't make any comparisons. I experienced some random roll overs from prior to 2.8 so I think I've had this problem for a while.
2. I haven't tried to figure out exactly how much of a difference…"
"I intend on writing a full post for this later but here is a sneak peak at my real world testing.
https://www.youtube.com/watch?v=MHn28Xn52tU&feature=youtube_gda..."
https://www.youtube.com/watch?v=MHn28Xn52tU&feature=youtube_gda..."
"After my first round of testing showed strange IMU behavior when the APM was heated I decided to explore this interference more. Specifically I have noticed that different behavior shows up when the APM is armed.
The sensor fusion equation that…"
The sensor fusion equation that…"
