OAK-D LR CAMERA STOPPED WORKING

AryanKaul · 16 Jan

Hi everyone,

I am writing this post to try and figure out why my Camera has stopped working. I was out of the lab for a month and had disconnected the usb from the camera and placed it away. It was working a month ago but upon reconnecting it now it does not seem to work.

The depthai_viewer does seem to run but cannot detect a device

the rgb_preview.py example throws the same error

Manage App Execution Aliases.

(base) PS C:\Users\Purdu\depthai-python\examples> python .\ColorCamera\rgb_preview.py

Traceback (most recent call last):

File "C:\Users\Purdu\depthai-python\examples\ColorCamera\rgb_preview.py", line 24, in <module>

with dai.Device(pipeline) as device:

     ^^^^^^^^^^^^^^^^^^^^

RuntimeError: No available devices

(base) PS C:\Users\Purdu\depthai-python\examples>

I am attaching some pictures and videos of the entire setup for some guidance on what could be done for the same.

entire-setup-usb-and-poe.mp4

4MB

first-connection-no-poe-yet.mp4

2MB

Some guidance on this would mean a lot

PS: Link to the previous post discussion and link to guide

https://discuss.luxonis.com/d/5560-setting-up-oak-d-lr

https://docs.luxonis.com/software/depthai/manual-install#Manual%20DepthAI%20installation-Installing%20DepthAI

jakaskerl · 17 Jan

AryanKaul
The device should work on USB only. Blue light should be present on the bottom and device should be detectable with under devices.
POE:
And I don't see any lights indicating the power is delivered to POE port. Why not use ETH only or USB only?

Thanks,
Jaka

AryanKaul · 17 Jan

jakaskerl

Hi, there is a yellow/green light for the POE under the desk when I plug it in (the power socket is under the desk).

I had connected the usb and the POE before break and it was working with that setup. Are you saying it would work just with the usb connection from the camera to the computer?

Also, I was curious on how to disconnect the ethernet from the camera. The second part of the top half does not pop off and the only way to connect the ethernet is via the pin facing towards the second part(thus not making it possible to grab it to remove)

jakaskerl · 17 Jan

AryanKaul

AryanKaul I had connected the usb and the POE before break and it was working with that setup. Are you saying it would work just with the usb connection from the camera to the computer?

Yes. Device should be found on USB only.

AryanKaul Also, I was curious on how to disconnect the ethernet from the camera. The second part of the top half does not pop off and the only way to connect the ethernet is via the pin facing towards the second part(thus not making it possible to grab it to remove)

Not sure what you mean.

Thanks,
Jaka

AryanKaul · 17 Jan

jakaskerl

I see,

I was referencing this

The grey part will not come off from the other side and the ethernet pin is facing that side. As such I am struggling to disconnect the ethernet port.

Any suggestions for that would be appreciated as I'm sure other users might have experienced similar problems. I tried giving it to other teammates but they weren't able to get it out either.

Also, would I need to do a reinstall of any of the libraries or a clean boot if and when the POE is removed

jakaskerl · 20 Jan

AryanKaul
No need to do anything, the device can function in both modes.
Though I am confused, AFAIK we don't make these cases for cable protection.. Where did you get them?

Thanks,
Jaka

AryanKaul · 20 Jan

jakaskerl

Ok but if I leave it as is, it is not working at all, so what should i try out for that?

Regarding the case, It came along with the box if i remember correctly and it was from luxonis

jakaskerl · 20 Jan

AryanKaul
Can you connect to the device with USB plugged in? Accessible via lsusb. Try another ubuntu PC just in case.

Thanks,
Jaka

AryanKaul · 23 Jan

jakaskerl

I've actually been using windows powershell for interfacing with oak D

is there any guide for working with that specificially

jakaskerl · 23 Jan

AryanKaul
Get-PnpDevice -Class USB

Thanks,
Jaka

AryanKaul · 23 Jan

jakaskerl

I got the camera to work for an hour before it stopped working again. I just disconnected the POE and tried only usb like you said

Few things I wanted to ask about in the depthai_viewer

the center camera seems to have this weird static on it which is not present on the left or the right cameras.

Also, the point cloud in the high detail preset also seems to be similar levels of fuzzy, was wondering if there was a way to remove this

Thermal detection also does not work when I tried different presets. Everything else worked well

Now after thermal detection did not work, I tried to change to normal models but the screen remained black. restarting the viewer did not help. And after unplugging and replugging the usb, the viewer could not recognize the device and windows started saying the usb could not be recognized

making me feel like there is a problem either with the usb-c, library or the hardware itself

Below is the output of the command you suggested

Some help on this would be appreciated

jakaskerl · 24 Jan

AryanKaul
Looks to be viewer issue specific to the OAK-LR. cam_test utility should still work (green lines). For device discovery, what error did windows show?

AryanKaul windows started saying the usb could not be recognized

Soounds like a device corruption..

Thanks,
Jaka

AryanKaul · 24 Jan

What would be the next steps?

Is a way to recover the device or maybe try a fresh reboot of hardware and software? Some debugging utility

Or some possibility of replacement? I still have the box

AryanKaul · 27 Jan

AryanKaul

Hi, just wanted to follow up on this

jakaskerl · 27 Jan

AryanKaul
Please write to support@luxonis.com. And attach this thread.

Thanks,
Jaka

AryanKaul · 27 Jan

jakaskerl

Should I attach the previous thread as well

Where I set up the camera

Also, did you mean support@luxonis.com?

jakaskerl · 28 Jan

AryanKaul
Yes please. We will likely need to inspect the unit so we will replace your device.
(yes it was a typo, fixed)

Thanks,
Jaka