Conbee II on Odroid N2+ (or USB3)

1

Hello,
I have many errors in my logs with my Conbee II stick on my Odroid N2+ . I think it could be a problem off support of USB3 by the CONBEE II or/and a conflict with the 2 other USB3 sticks.

The errors:

2021-05-04 15:49:00 WARNING (MainThread) [zigpy_deconz.api] No response to 'Command.write_parameter' command with seq id '0x79'
2021-05-04 15:49:00 WARNING (MainThread) [zigpy_deconz.zigbee.application] No watchdog response
2021-05-04 15:49:12 ERROR (MainThread) [zigpy_deconz.uart] Lost serial connection: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
2021-05-04 15:49:12 WARNING (MainThread) [zigpy_deconz.api] Serial '/dev/serial/by-id/usb-dresden_elektronik_ingenieurtechnik_GmbH_ConBee_II_DE2404514-if00' connection lost unexpectedly: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
2021-05-04 15:49:17 ERROR (MainThread) [zigpy_deconz.uart] Lost serial connection: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
Unexpected transmit confirm for request id 18, Status: TXStatus.NWK_ROUTE_DISCOVERY_FAILED

The Odroid N2+ has 4 USB3 ports and the Conbee stick support only USB2 : the Deconz documentation alerts on potential problems with USB3.
Many people report also problems with other USB3 devices (like SSD drives) and I have 2 other stick connected (1 ZWave gen5 aerotec and 1 RFXCom).

For information I use HA OS and ZHA integration. I tried with USB cables or powered hub, without success. My CONBEE is up to date.

Have other people using Odroid N2+ and Conbee II had this type of problem?
Any suggestion to make it work?
If I decide to replace the Conbee II to stay with my odroid N2+ (it is a very good machine), which other great USB stick do you recommend with Odroid N+ and its USB3 ports?

2

There is a well documented issue of USB3 ports producing large amounts of electromagnetic interference that can affect USB radio devices.

  1. Try a USB 2 port and…
  2. Put the USB stick on a USB extension lead to move it further away from the USB3 port (and get you better range by having the receiver in a better location).
3

Thank you for your asnwer.
Unfortunately, Odroid N2+ (Home Assistant Blue) has only 4 USB3 ports. My stick is on an extension at 75cm from the Odroid N2+ and other sticks.

4

Does anyone use conbee II dongle with Odroid N2+ ? Any feedback on it ?

5

Well I replaced ZHA by Deconz and it works now….