I am newbe, and i was build my first quadrocopter on the AQ-600 frame in the following configuration:
Flysky FS-i6S + FS-A10v PPM connetion to Pixhawk
SIK 433 mhz + GCS telemetry Tower
Racerstar RS30A Blheli_S 30A OPTO ESC’s
RCTimer 4215 (3507) 650KV Multicopter Brushless Motors
Zippy 8000 mah
HAKRC Storm32 gimbal
The three-position switch on the RC transmitter is configured to switch modes Stabilizer-AltHold-Loiter.
I usually take off in the stabilization, then I switch to Loiter.
Then I try different modes, learning to fly, etc.
I was try AUTO mode fist time.
I was set 9 points. At 9 point set RTL command.
Take off on Stab, turn three-position switch to Loiter then turn on Auto Mode by GS Tower.
Dron began to carry out the mission.
After 9 point dron began to return, and all was good.
When the drone fell to 4-5 meters, I decided to switch the mode in stab mode to take pictures of man.
Then the drone crashed.
When he started to fall - I have had to switch to Loiter.
But it did not help.
Here is a piece of video from a fall and log file. https://www.youtube.com/watch?v=79kahuS1u6U
I’m sorry, I just went by description.
After reviewing the video (thank you for having sound), I would think it was mechanical failure with the behavior I saw. It was a coincidence that it happened when you switched modes.
Unless one of the modes programmed was “flip” and you accidentally hit that.
Hard for the analyzer to make sense because of the different languages but I did see one thing that caught my attention.
At the point of the first sign of trouble before the crash, all radio output went to the maximum level until the time of the crash.
what level of logging do you have on (LOG_BITMASK) and how long were you flying?