I have now changed the usb cables, it now works if I try to open it separately but when running the script that you sent for multiple devices, ( luxonis/depthai-experiments/blob/master/gen2-multiple-devices/main.py), I get the following errors. It does recognise two devices but only shows one of them:
Found 2 devices
C:\Users\sadia\depthai-python\depthai-python\examples\ColorCamera\MultiCamera.py:31: DeprecationWarning: Use constructor taking 'UsbSpeed' instead
device: dai.Device = stack.enter_context(dai.Device(openvino_version, dev_info, False))
=== Connected to 1844301021AD0E1300
MXID: 1844301021AD0E1300
Cameras: CAM_A CAM_B CAM_C
USB speed: SUPER
C:\Users\sadia\depthai-python\depthai-python\examples\ColorCamera\MultiCamera.py:19: DeprecationWarning: RGB is deprecated, use CAM_A or address camera by name instead.
cam_rgb.setBoardSocket(dai.CameraBoardSocket.RGB)
Exception in thread Thread-2:
Traceback (most recent call last):
File "C:\Users\sadia\anaconda3\envs\v7\lib\threading.py", line 980, in _bootstrap_inner
self.run()
File "C:\Users\sadia\anaconda3\envs\v7\lib\threading.py", line 917, in run
self._target(\*self._args, \*\*self._kwargs)
File "C:\Users\sadia\depthai-python\depthai-python\examples\ColorCamera\MultiCamera.py", line 31, in worker
device: dai.Device = stack.enter_context(dai.Device(openvino_version, dev_info, False))
RuntimeError: Device already closed or disconnected: io error