Well I don't know whether to laugh or cry.  I had a horrific crash a couple of months ago, so I've been laying low.  Then last week I started to piece everything together and get back into it VERY SLOWLY and carefully.

Some of you (on facebook) helped me look at my logs from 3 simple flights just to foresee any problems, everything looked ok:  http://diydrones.com/group/iris/forum/topics/please-check-my-logs

So yesterday I assemble a brand new Tarot 2D gimbal, and also pieced together a couple of broken GoPros and made 1 that would record.  Just scraping up the pieces to get back into it slowly, ya know?

I took it to the park tonight, a different park and I made sure to STAY OVER THE GRASS AT ALL TIMES, and no higher than 10 meters for the most part.  I flew several auto missions I just drew up tonight in DroidPlanner2.  Just quick flights, relatively low to the ground, and I brought 3 batteries.

I was testing different flight patterns and waypoint functions in DroidPlanner, nothing too crazy.  A pause here for 10 seconds, a 10 meter circle around this area, point the camera here, no big deal, right???  

I'm in my 4th flight and using my 3rd and final battery for the night.  The audio comes on and says "Battery at 90%" so I'm like ok, cool.  I'm just letting it run it's auto mission that probably would have lasted a grand total of 3 minutes, and the son of a bitch drops out of the F#^%ing sky AGAIN like a rock, NO WARNING.  I break one of the blue arms, and my BRAND NEW F$*%ing gimbal snaps off of the Iris.

Is this a joke?  

So anyways, here I go again, I'll put this one in to 3DR support with almost ZERO confidence, let's see if they'll offer 30 bucks off of something again and find a way to suggest it was all my fault.

Here are the logs, and better yet I've got the video.  What else can I provide you fine folks?  I'll just share the Dropbox folder with all 4 logs from tonight, and of course the crash is the latest log.  I would absolutely love some analysis on what went wrong.

https://www.dropbox.com/sh/rn0h0q8msmbw87w/AAD3R6iA_sBKkO0SDxDphz00...

And the video.  I can share the other videos from the earlier flights tonight, but they are uneventful, just going to a dozen waypoints, looking at points of interest, pausing, and landing.

The crash happens at 2:37, and I think it's just absolutely adorable how the motors continue to spin EVERY TIME it crashes even if it's upside down, as if there is no setting on the compass that can turn those damned motors off.

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Why are you using Droid Planner 2?  They updated it months ago and renamed it Tower.

As others will tell you, when you put a battery in, Droidplanner/Tower starts at 100%.  You have to watch the volts.  But I'm surprised, given your past bad experience that you aren't familiar with this.

Droid Planner 2 is still a valid app and has nothing wrong with it.  I've also got Tower installed, but as I plug in the USB antenna, my phone still automatically assigns it to work with DroidPlanner2 and I'm fine with it. I'm sure it wasn't the app's fault.

Are you saying the apps always report the battery at 100% when you first connect, even if the battery is at half charge?  That would be surprising.  Even if it did, why didn't the Iris RTL when the voltage got to 10.5?  I had it set at the parameters that I received directly from 3DR.

It seems you are suggesting that it was my battery that died.  Do the logs point you to this conclusion?

On another note, if this battery is the one that caused my last crash too, I should test it out.  What model of voltage tester do you guys prefer?

Sorry to hear about your crash. I'm curious what comes out as reason.

I have never analysed logs but just played around with your crash log file. From the video it sounds as if all motors shut down and then your bird fell from the sky.

Battery voltage looks ok to me. Always above 11V.

Sorry, but as I am still trying to figure out the details of analysing log files, I am probably not much help for you at the moment.

Thank you for at least taking an interest though!

Can you post the logs outside of Dropbox? I'll have a look.

Yes, what file extensions do you want? Bin? Tlog, log?

I'd like to have a look at (.log)

Where are you located Justin? Maybe I could drop by and provide some support/assistance.

Did you happen to note if the top of your iris felt hot?

I got my replacement Iris in from 3DR last week and it was a smooth calibration with the most recent Mission Planner. As well, I set up a Samsung Galaxy Note 4 on Tower...and it heated up quickly communicating  with the Iris. So...

        What phone are you using to run your ground station? I just wonder if its something to look into.

I am also planning on adding a small micro fan under the top to move air over the ESC and the pixhawk...my new unit heated up during cals and setup...so I'm "concerned"

 almost too tired for this.. btw did you have a backup RCTX powered on with switches in stab mode throttle=0?

(required to do auto takeoffs in older versions of tower and droidplanner 2)..

     hzl

Yes. The app does report 100% when you connect. It's kind of meaningless. Always watch volts.

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