mavic air 2 and mavic pro

[vsakalis]

Hello,

In order to make some tests with meteorological sensors, I want to ask some questions about mavic air 2 and mavic pro drone.
1. Is it possible to download data referring to the RPM of each engine VS the time? (i.e an ms excell file or *.dat/txt file)
2. Is it possible to download data referring to yaw/pitch angle (drone, not camera) VS the time?
3. When someone starts the drone and keep it stable-secured (body-bounded) on a platform, which will be the behavior of the drone? (it will operate with rotors moving according to the stick orders or it will stop).

Thank you in advance

 

[slup]

1. For the mentioned DJI models yes, for the Air 2 in the mobile device stored DAT log & for the Mavic Pro, both in the mobile device stored & the aircraft stored DAT log. DAT logs can be read by PC programs like csvView

2. Yes, attitude in both pitch, roll & yaw are logged for both models in the mobile device stored TXT log & the DAT log.

3. May generate problems depending on that the throttle stick input doesn't directly control the motor RPM... in between the stick & motor you have a flight controller that controls how the motors are regulated by means of the stick input + various sensor data (like barometric sensors...). So if you apply throttle input & the height doesn't change, the FC might command higher & higher RPM to achieve a ascending that never happen as the drone is tied down. This would be the same for pitch, roll & yaw commands (but here it's instead the gyro & accelerometer sensors that will tell the FC that nothing is happening & the RPM reaches eventually max).

But if you have access to a drone... tie it down & start the motors with a CSC stick command, then slowly apply more throttle & see what happens ( just be prepared to shut the motors off with the same CSC command if the RPM automatically & quickly ramps up to max). Also deactivate the VPS sensor on the belly of the drone if you have something closer to it than 0,5m, you can usually do this in the app (DJI Fly or DJI GO4).

 

[RadioFlyerMan]

Regarding #2, you can retrieve the drone movements from the flight record using the TXTlogToCSVtool.exe, which converts the txt to a csv...

[TOOL][WIN] Offline TXT FlightRecord to CSV Converter

Hi folks, I'm glad to present you the result of my work. A lot of us have been unhappy, because until now, there was no offline TXT FlightRecord to CSV Converter. And after websites such as HealthyDrones and djilogs.com started to charge for their services, I decided I really need some offline...

phantompilots.com

The data parameters you would use for the drone movement are
heading: OSD_yaw,
roll: OSD_roll,
pitch: OSD_pitch.

To convert these data for use in a KML for Google Earth Pro, use (- roll value), (90 + pitch value), (+ yaw value)