OAK-D-PRO connected to a USB2 port

AlessandroB

Hi,

I'm working with a OAK-D-PRO, that I connected to a USB2 port. The power supply is adequate as well as the bandwidth.

Do I have to worry about something else or can I safely work with this configuration?

Many thanks!

BR,

Alessandro

jakaskerl

Hi @AlessandroB
You should be fine. However, I'd recommend explicitly setting the USB mode, to avoid any possible issues with the depthai library thinking you are using USB3+.

HIGH refers to usb2.0 speeds.

with dai.Device(pipeline, maxUsbSpeed=dai.UsbSpeed.HIGH) as device:

Thanks,
Jaka

AlessandroB

Hi jakaskerl ,

many thanks!

Alessandro

luxd

jakaskerl Does this "should be fine" recommendation change if using an OAK-1 OV9782 targeting 140fps?

v1.24.0 upped the fps capacity

I ask as I've had an inconsistent and rare frozen camera issue where one customer has the issue often. It just occurred to me that maybe they're accidentally (via wrong port or faulty provided cable from Luxonis) using USB 2.0 vs. 3.0. I'll update this thread when I get confirmation from them, but I'm still curious if your recommendation changes.

jakaskerl

luxd
If you use USB2, then your max bandwidth is 500Mbps iirc. Using a USB3 connection will increase the bandwidth 10fold. If you stream with higher FPS, then more bandwidth is consumed and you can quickly run into issues.

If frames are not sent to the host however, bandwidth should not be an issue.

Thanks,
Jaka