Zigbee2mqtt suddenly keeps failing daily and host needs reboot

Configuration Zigbee
1

Hi,

My rPI with a CC2531 and zigbee2mqtt is running ok for over a year now, but suddenly zigbee2mqtt is failing daily. One or multiple reboots are needed to get zigbee2mqtt up and running again.
Anyone has an idea what it could be?

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2

Looks like your USB zigbee adaptor cant be found at ttyACM0.

3

Thought of that too, but it is connected. Maybe the cc2531 is failing? @tom_l

4

Or your power supply for the Pi is.

5

No it is definitely not connected:

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Maybe the hardware address has changed.

6

@tom_l is there a way to check if it is recognized under another hardware address? Im running HassOS (is it still called that?) so i dont have access to the command line.

@Tinkerer good tip, going to find another power supply to check if that is the problem.

edit: the led is still green on the cc2531 though.

7

Using a “regular” Linux OS you could use the lsusb command. Some OS also mount the stick at /dev/serial/by-id/

8

It looks like the mapping is still correct, but found this in the log… looks like it keeps removing and adding the device in HA.

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9

Listen to Tinkerer. Your power supply may be good enough for the pi, but… the pi and the USB transceiver?

10

It is running well for more then a year… but it could be failing ofcourse.

11

I think using the SSH / Web terminal addon with protection mode disabled should allow you to use lsusb or dmesg to check whether there’s issues with the stick. Also, as @m0wlheld writes, some distros use the “by-id” folder which is a better option to avoid issues with device enumeration (it still links to /dev/tty*).

12

Thanks, will try!

13

Actually, it’s not required as your screenshot clearly states the presence of a /dev/serial/by-id path. Although you should prefer this path over /dev/ttyACM0, it will not help you with your problem.

Your USB device connection is not stable, either from a hardware or software side.

14

cc2531 dead? now it doesnt recognize it anymore…

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15

Well, they’re pretty underwhelming sticks, so it’s not great loss if it is dead :stuck_out_tongue:

More seriously, try:

  • Removing it from the Pi for 30 seconds and then reconnecting it
  • Re-flashing it. It’s not unheard of for them to need that
  • Buying something modern - one of Tube’s devices or TI Launch XL boards if you’re in the Americas, the Zig-A-Zig-Ah! if you’re in the UK - or any of those and pay custom fees if you live elsewhere.
16

Indeed not a great loss haha, but i have bought a preflashed one so i dont have the flash tools.

I’m going to try to disconnect it a bit longer, but else i will buy a new one. Looked into the TI launch XL boards before, not many sellers here in The Netherlands but i see some.

17

Take a look here, there is a bunch of supported devices:
https://www.zigbee2mqtt.io/information/supported_adapters.html :smiley: :smiley: :smiley: