DJI Mavic Pro IMU Calibration
Today we are going to be talking about the DJI Mavic Pro. More specifically the IMU calibration of the Mavic.
The Inertial Measurement Unit (IMU) is one of the most important sensors on the Mavis, but it is also the most vulnerable to interference. The IMU acquires the angle, speed, and acceleration of the Mavic, so if it functions abnormally, it could negatively affect flight. The compass is used to know where the drone is heading, ensuring it flies in the right direction, and allowing it to return to home automatically. Without the compass, the Mavic would lose its ability to navigate. This is why the Mavic has dual IMUs and dual compasses.
You shouldn’t have to calibrate the IMU often. It would be a good idea to recalibrate it if you crash and your Mavic is no longer stable. Also, for me…. I like to recalibrate all sensors after a firmware update which DJI has recent pushed out, so it has inspired me to make this video. That is not specified by DJI but it is something I like to do for peace of mind prior to flying for the first time after an update. The Calibration takes about 5 minutes from strart to finish so let’s get into it.
First we want to start off on a level dry and stable surface to prevent any chance of a faulty calibration. Here I have laid out some levels on the island in my house to ensure it’s level. If you don’t have a physical level you could always download an app for your phone or tablet and use it instead. I just chose the first one that came up in the search, but you can choose whichever one you’d like.
Now that we know our platform is level and stable lets ensure the Mavic pro is ready for calibration. The only thing the Mavic really needs in preparation for IMU Calibration is to remove the blades from all for corners. This ensures the Mavic will get the proper angles for calibration as well as a safety measure just in case the Mavic develops a mind of its own.
With the blades now removed we can start to connect to the Mavic via remote control using the DJI Go4 App. If this is your very first time turning on the DJI Mavic Pro, the initial setup process will walk you through the IMU calibration this. If you are coming back for a second go at calibration you can select the 3 dots at the upper right hand screen to go into General Settings, select the drone icon upper left and go into “MC Settings”. Select Advanced settings then Sensors state button and it will take you into the IMU and Compass sensor screen. I will be doing a similar video on Mavic Pro’s Compass calibration and will link it in this video once its uploaded.
Now that we have opened up the IMU sensor screen we can select the option to calibrate IMU about three quarters of the way down the screen.
Now, we have finally entered the IMU calibration. The initial pop up gives you the list of requirements needed to successfully perform the calibration. Ie Dismount Propellers first, Follow the instruction to calibrate. Do not move the aircraft unless to overturn the aircraft as indicated, and ensure the aircraft powered on. Do not start motor. This process doesn’t take long but it is wise to do this on a full battery to ensure power remains on the Mavic the whole time.
The first orientation of calibration is the normal flat and level stance the Mavic would have in the transport position. The calibration will take a few seconds and there’s 2 ways you’ll be able to tell once that particular orientation is complete. The first is by the screen on the phone or tablet, the Mavic will rotate orientation in the app to show the next position to place the Mavic for calibration. The second is by the lights on the Mavic. During calibration the lights on the Mavic are solid yellow and once it is complete the back led lights rapidly flash green to indicate it’s ready for a position change. There are 5 rotations to be performed. Flat, on it’s sides (both directions), vertical (nose up), and upside down. Once these have been complete the calibration process is complete and the app asks you to restart the Mavic.
And just like that the IMU calibration is over quickly and painlessly. If you run into any type of hangups don’t worry. Reset and try again. If it continues to fail go over all settings and verify there’s no severe angle or interference around and if all else fails go ahead and contact DJI support.
I hope you found this video helpful if you have any questions leave them in the comments below give me a thumbs up if you liked it and subscribe for more content we’ll see you next video.