DJI Drones IMU Calibration

IMU stands for Inertial Measurement Unit. It is a device capable of estimating and reporting specific dynamic states such as angular velocity and acceleration

From this measurement, other dynamic states can be inferred, like attitude angles, roll and pitch, as well as velocity and position increments of the platform

The IMU utilizes several components of the aircraft, the gyroscope, barometer and accelerometer, to maintain a smooth, stable and balanced flight

Since the IMU affects the aircraft's behavior in flight, it might impact the safety of your unit

I perform a calibration of the IMU whenever I notice an unexpected flight behavior

If the aircraft cannot fly in a straight line, doesn't maintain the altitude, drifts while hovering

or doesn't respond appropriately to the sticks of the remote controller, the first thing to do is to calibrate the IMU

Another occasion for calibration is when DJI FlyUp prompts to do so with an on-screen message

The calibration is also suggested after travelling more than 50 miles, after big elevation changes, for example during a trip to the mountains

or when the temperature is drastically different from usual. For the calibration choose an area far from metal and free from magnetic and electrical interferences and the air interferences Place the aircraft on a level and flat surface Make sure to have at least 50 battery life for both the drone and the remote controller

I will show how to do it with the Mini 4 Pro and the RC2 remote controller

but the procedure is the same with the other models. With the flip there are some small differences that I will illustrate

In the safety tab of settings scroll down until you find IMU normal and hit calibrate

We are presented with a screen that guides us through the steps needed for the calibration

We are asked to position the drone with folded wings in five different positions

In the first one the aircraft sits laterally with the camera to the left

After hitting the start button at the bottom of the screen, a ring shows the progress of

the first step. The second position is sitting on the left side of the aircraft with the power switch

facing us and the camera to the left. Position 3 with the drone on its back and the camera to the right

Position 4 with aircraft on his right side and the camera to the right

Position 5 with a drone standing on the back showing us the right side

Finally we place the drone in the first position and the aircraft will restart

It's a bit like doing yoga