RPI4: can't detect Google Coral in HA Hardware list (Frigate)

I am trying to get the Frigate add-on to work on my RPI4 with Google Coral. I have a Coral connected through the USB 3 port with an external power source for the Coral but it can’t be detected or found in HA hardware list. I have also tried to use Frigate full access-add on and disabled protection mode without results.

Frigate error log:
2023-04-09 17:17:53.029484606 [2023-04-09 19:17:53] frigate.detectors.plugins.edgetpu_tfl ERROR : No EdgeTPU was detected. If you do not have a Coral device yet, you must configure CPU detectors.
2023-04-09 17:17:53.029783471 Process detector:coral:
2023-04-09 17:17:53.036236403 Traceback (most recent call last):

Does anyone have an idea of what to do to make HA detect it?

Disable Protection Mode then restart Frigate.

2023-04-27 17:57:36.058904944  [2023-04-27 14:57:29] detector.coral                 INFO    : Starting detection process: 300
2023-04-27 17:57:36.072218113  [2023-04-27 14:57:29] frigate.detectors.plugins.edgetpu_tfl INFO    : Attempting to load TPU as usb
2023-04-27 17:57:36.072787031  [2023-04-27 14:57:36] frigate.detectors.plugins.edgetpu_tfl INFO    : TPU found
1 Like

Did you get anywhere with this? I’m in the same boat. No TPU detected.

same here… read in other blogs that a powered USB hub is recommended… still try to avoid that…

I replaced the factory usb cable and it worked straight away without the powered hub.

uh, will try that next then… cheers

nope didnt work for me, will try the powered hub next.

These worked for me, thanks!

Did anyone solve this? I am not able to get Coral be detected. I added a powered USB hub and still isn’t getting detected.

BUSNUM: '001'
DEVNAME: /dev/bus/usb/001/006
DEVNUM: '006'
DEVPATH: >-
  /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.2/1-1.2.2
DEVTYPE: usb_device
DRIVER: usb
ID_BUS: usb
ID_FOR_SEAT: usb-platform-fd500000_pcie-pci-0000_01_00_0-usb-0_1_2_2
ID_MODEL: 089a
ID_MODEL_ENC: 089a
ID_MODEL_ID: 089a
ID_PATH: platform-fd500000.pcie-pci-0000:01:00.0-usb-0:1.2.2
ID_PATH_TAG: platform-fd500000_pcie-pci-0000_01_00_0-usb-0_1_2_2
ID_REVISION: '0100'
ID_SERIAL: 1a6e_089a
ID_USB_INTERFACES: ':fe0102:'
ID_USB_MODEL: 089a
ID_USB_MODEL_ENC: 089a
ID_USB_MODEL_ID: 089a
ID_USB_REVISION: '0100'
ID_USB_SERIAL: 1a6e_089a
ID_USB_VENDOR: 1a6e
ID_USB_VENDOR_ENC: 1a6e
ID_USB_VENDOR_ID: 1a6e
ID_VENDOR: 1a6e
ID_VENDOR_ENC: 1a6e
ID_VENDOR_ID: 1a6e
MAJOR: '189'
MINOR: '5'
PRODUCT: 1a6e/89a/100
SUBSYSTEM: usb
TAGS: ':seat:'
TYPE: 0/0/0
USEC_INITIALIZED: '743264201'

It’s 2025 and I get the same output as @kmanan. Any progress with this issue?