Replies to This Discussion

Permalink Reply by DanRZ on September 19, 2012 at 2:02pm

Hello, i noticed on my APM 2 that if i connect the USB and also the "main" power battery it saves a log.

For example i get a log file when i make my calibration "on bench" ...

But i don't know if there is all the informations on those logs ( i delete them without looking in it ).

Just connect the USB after connecting normally the APM just like you were really flying with your APM

and it might work and save the log of your real aircraft flight.

Just connect a 4 cells NiMH battery pack (6V) on any input or output slot.

Maybe you will need to arm the motors and leave a "non zero" throttle value.

I don't know if logs are saved without really flying ...

I suppose logs are not full if the model doesn't actually fly ...

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Permalink Reply by Dave Whittington on September 20, 2012 at 9:36am

@DanRZ,

  Thanks for your ideas, but I would be glad to make simple changes to the APM ArduPlane software so it would think its flying even though it is still connected to the USB from my laptop.I am hoping that one of the APM software designers would be able to comment - maybe I should post under that topic on our forum.

 

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Permalink Reply by Dave Whittington on September 21, 2012 at 11:36am

Actually it looks like APM + Mission Planner does what I want to do as is. Only one thing so far is that I would like to be able to stop and start new logfiles during my testing - maybe even after just a couple minutes. This appears possible except that each reconnect takes about 30 seconds - not a big deal. I don't know which data packets are being recorded yet - seems pretty good though!

    Much thanks to Michael Oborne and the other contributors for such an amazing product as Mission Planner!

 

Dave

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Permalink Reply by Dave Whittington on October 4, 2012 at 10:40am

One significant problem with this - flying with APM in a real aircraft and making several separate tests is if I want a SEPARATE tlog for each test, I have to Disconnect and then Connect again. I get the feeling that the IMU will calibrate each time - but I won't be on the ground with no movement!

 

Uh-oh!

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Permalink Reply by Dave Whittington on October 5, 2012 at 8:48am

YAY! Either this was changed recently or I overlooked it in the Configuration->Plannere tab - it's called APM reset. Thanks!!

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Permalink Reply by Dave Whittington on October 5, 2012 at 8:46am

One note on my request for help about Excel or , in my case, OpenOffice (free and similar-to-Microsoft Office option). With OpenOffice, there is a Basic or Javascript type IDE and scripting language built in ( called Macros). I was able to read the documentation and come up with a script that looks for the right MAVLINK packets from the CSV version of the tlog files and plot some of the variables. These plots can be copied to a Powerpoint like (called Impress) slide for final showing - very cool! If anyone is interested, I could post my test script for reference and show the weblinks of interest.

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