depthai-viewer Starts But Not Seeing Devices

spnsingh

Hello:

Following the instructions here [https://docs.luxonis.com/en/latest/pages/tutorials/first_steps/], I was able to install and start depthai-viewer, but I was not able to get it connect to either an OAK-D wide or an OAK-1 camera.

Any tips?

jakaskerl

Hi @spnsingh
What OS? Did you install the dependencies?

Thanks,
Jaka

spnsingh

jakaskerl

This is running on Ubuntu (22.04.03 LTS). I did follow the dependencies as best as I could understand them. I did use the sudo wget -qO- https://docs.luxonis.com/install_depthai.sh | bash as per the instructions.

Is there a way to check if the dependencies are correct?
My fear is that different parts of the stack (notably depthai-python) install different versions of depthai and other dependencies and that the above script might not be downgrading things appropriately.

senoa95

I too am having similar issues. I also faced an issue with no-devices available on the depthai-viewer - restarting the veiwer several times and retrying allowed me to find and stream from my OAKD-Pro POE. Note that the cam_test.py script in the utilities folder of the depthai-python repo works consistently so I believe this might be a bug in the viewer. See in the image where the Camera Test tool has found and connected to the camera but the viewer shows No Device.

Maybe a related problem but the frame rate on the viewer is extremely slow (3-5 fps if I were to guess) even after changing settings and turning off certain features (e.g. the DL model).

jakaskerl

Hi @spnsingh
sudo wget -qO- https://docs.luxonis.com/install_dependencies.sh | bash should install the necessary drivers and USB rules. it won't interfere with python.

senoa95 This is likely a different problem since the POE device could not be in the same subnet, and therefore not accessible. Also the low FPS indicates a bandwidth issue. Make sure you are using at lease CAT5E to get the full speed.

Thanks,
Jaka

senoa95

I faced an issue with no-devices available on the depthai-viewer - restarting the veiwer several times and retrying allowed me to find and stream from my OAKD-Pro POE. Note that the cam_test.py script in the utilities folder of the depthai-python repo works consistently so I believe this might be a bug in the viewer. See in the image where the Camera Test tool has found and connected to the camera but the viewer shows No Device.

To jakaskerl's note in a different thread, I am using the default ethernet configuration for the camera (169.254.1.222) and my NIC is on the same subnet (with address 169.254.1.10). I am using a Cat5E ethernet cable.

senoa95

Since this is a different issue, I will move to a new post.