No Cam available issue, but cam connected...

julienbayle

Hi there,
what command should I run for knowing if the system can detect my cam ?
I have this message and my cam is connected...

Traceback (most recent call last):
File "main.py", line 124, in <module>
MainDebug().run()
File "main.py", line 37, in run
for frame, results in self.depthai.capture():
File "/Users/abc/Desktop/camTrackColor/camTrackColor/py/depthai_utils.py", line 125, in capture
for frame, detections in super().capture():
File "/Users/abc/Desktop/camTrackColor/camTrackColor/py/depthai_utils.py", line 75, in capture
with dai.Device() as device:
RuntimeError: No available devices

erik

Hello julienbayle , are you using the OAK PoE device? Otherwise, if USB, I would suggest switching USB cable (to USB3 cable), as that's the most common reason for the issue you are describing.
Thanks, Erik

julienbayle

We are on OAK-D
We tried with or without PSU adapter.
In the studio, everything was working fine with USB only (no adapter)
In the exhibition room, it doesn't work anymore.
Cam seems to heat a lot. I hope it has not been damaged.

Did you already experience this ?

erik

Hello julienbayle , have you tried changing the USB cable - or better yet, use the one from studio that was working? You don't need the PSU, as usually host computers (laptop/pc/rpi etc.) can supply enough power. Regarding heating; the device can heat up to _60C (docs here), and no device was ever damaged due to heat (except if you take off enclosure/heatsink and run it).
Thanks, Erik