DJI mini 1 and 2 gimbal details

[Dula]

Good morning. I'd like to ask if anyone knows the details of how the gimbal on the Mini 1 and 2 works. Specifically, it has an IMU next to the camera sensor, but maybe it has magnetometers next to each servo. Could someone provide detailed information?

My question is because some of the servos are vibrating and buzzing after being repaired. I'd like to know how to rule out the PTZ cable. Does anyone have a diagram for checking this cable?

Lastly, if anyone could send the software to clear error 40021, etc., I would be very grateful.

Thank you

 

[Cafguy]

The gimbal does not use magnetometers It uses brushless motors that are controlled by the IMU. That buzzing sound you are hearing is because your PTZ cable is damaged or not seated or installed incorrectly -- Believe me its a common "tell".
There is no "work-around" for the 40021 error and that error would show up if you had a bad or miss-installed cable. Purchase a new cable and carefully install it..Dont forget to replace any silicone or heat paste you remove! this is most important!
P.S. ONLY USE KINGBOXER silicone on your Drone NOTHING from the hardware store! (kingboxer DX-704)

 

[Dula]

I realised. Also i found at github the hardware info of those IC and motors: WM160 Gimbal Roll Pitch motor driver board

I will then buy the ptz check board, ¿is there any info for checking it manually with a multimeter?.

About error 40021, i mean could we find the software free?, for calibrating and errase change error.

 

[Cafguy]

The 40021 error will clear when you replace the cable. there is no manual check for the PTZ, except trying a known "good" cable. if your having a problem the best thing really is start with a "Fresh" cable...Sorry.

 

[Dula]

I mean, sorry. I also changed de imu, so i must vinculate it to the motherboard and then calibrate it.

 

[Dula]

Also, other thing. I will buy so the check board for ptz wires in order to try fix them

 

[MavSol101]

I have Gimbal Calibration software here, I can Remote calibrate it and Remove error for free, just remote calibration

 

[Dula]

Mav could you please send it to me?, I could give yo 10 dollars

 

[MavSol101]

hmmm online calibration is free, but buying software to calibrate and remove error 40021 for 10$? thats a different story.