zigbee-plant-sensor
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stanvn
Sensor with bad reception goes into unrecoverable state
I have one sensor in an area with bad ZigBee reception. It has no ZigBee routers nearby but a wifi repeater. After an initial start up it transmits data for about 3-10h, then stops. It even does not continue if I move it to an area with good reception. The attached image shows the effect.
The ZigBee coverage is not terrible (after all, it does transmit without issues for a while), just not very good. I had a ZigBee lamp next to the device and the device worked perfectly for a few weeks. Then I removed the lamp, and the issue started to surface. After a few of these "crashes" I thought the device was defective, so I switched it with another one. But also the second device showed the effect. And the first one, when moved to another room works perfectly.
Thanks for your issue, I have seen similar problems by others. I know for a fact that Zigbee is not a self repairing network, or at least it will not look for new connections as long as it still has a connection with its parent. If the connection is lost it will look for a new parent.
What kind of dongle do you use? And do you use Z2M or ZHA?
I am using the zonoff ZigBee usb dongle and zigbee2mqtt.
I used the "map" function of zigbee2mqtt to check and all routers of the network where replying, so I guess they are all online and working. I now placed an Ikea ZigBee repeater close to it and it has been running without issues since.
Maybe it is a re-connection problem. I'll test it by manually removing links and see if it reconnects properly.
I found an issue in the know issues from the nRF Connect SDK. I've implemented the proposed workaround in the main. Hopefully the issue is now solved
Hi, sorry for the slow reply, I was a bit busy. Nice to hear you have found a workaround! If you upload a hex I will test it and give you feedback, if that solves my issues...
No problem, I've been busy too. Here is a link to a hex file so you can test it. https://drive.google.com/file/d/1LK-mcJxXOtrW712IEFpojefQ2F1zVAYD/view?usp=sharing
Hmm, somehow it looks like the device is no longer working properly with the linked hex. The red LED does not light up when I insert the battery and it won't report anything in z2mqtt. Also when removing the device and allowing new devices to join nothing happens. I reflashed the version 2 from the releases page and could add it again.
That is not how it should work indeed. I'll check the hex file again later. Maybe I added the wrong file.