IMU not detected in OAK-D Lite

Dams

Hello everyone,

I just got an OAK-D Lite, si I hooked it up my to test its capabilities.

I used the Depth AI Viewer to test it, but it seems that the IMU is not gyroscope and accelerometer are not detected.

I tried with "imu_gyroscope_accelerometer.py", and I get the error : "IMU(0) - IMU invalid settings!: IMU not detected. Your board doesn't have IMU or requires firmware update (Set imu.enableFirmwareUpdate(True) explicitly.). 1, 347"

I also tried to update the firmware, but it failed.

Is it just a defective unit that I need to return ?

erik

Hi @Dams ,
it means the device does not have IMU. Please send email to support@Luxonis.com along with your purchase number (email you received when you placed an order) and we can replace the device.
Thanks, Erik

Dams

After some back and forth with the Luxonis Support team, they were able to supply me with a unit with an IMU.

I believe they confirmed this by opening the camera or testing it.

But somehow, I am still getting the same errors.

I use the dethai-python version 2.28.0.0 (built from source).

When I try to get the IMU version, it says :

IMU type: , firmware version: 0.0.0

When I try to update the firmware, it says :

IMU FW update status: 0.0%

Firmware update failed!

I also tried to get the metadata of the device through the capture_diagnostic scrip, and I get :

{

"BootloaderVersion": null,

"ConnectedIMU": "",

"imuFirmwareVersion": "0.0.0"

}

I am not sure what to do, as Luxonis assured me that this camera has the IMU, but I just can't find it.

I tried to uninstall and reinstall the depthai package, but it doesn't change anything.

Would you have any other troubleshooting steps I can attempt ?

jakaskerl

Dams
Could you open the case please and check if IMU is on the board. Just to confirm this before we attempt to fix it.

Thanks
Jaka

Dams

Hi,

Could you tell me what exactly I am looking for on the board ?

I can't find any schematics online.

I took photos, of the interior.

They are in imgur at

Does something look like an IMU to you ?

jakaskerl

Dams
The revision number seems to be very old, can't even find it on schematics. It's missing the BNO IMU (first image top left is where it should be).

Apologies, not sure how they managed to send you one without it. I'll sync internally.

Thanks,
Jaka