I am getting errors stating UNKNOWN_ATTRIBUTE in Zigbee2mqtt when trying to set any of the temperature or humidity high / low levels or to switch on or off the enable_temperature or enable_humidity.

the log entries when I try to do this are as follows.
2023-08-25 13:00:34Publish 'set' 'high_humidity' to '0x00124b0022e93d4e' failed: 'Error: Write 0x00124b0022e93d4e/1 msRelativeHumidity({"545":{"value":83,"type":33}}, {"sendWhen":"immediate","timeout":10000,"disableResponse":false,"disableRecovery":false,"disableDefaultResponse":true,"direction":0,"srcEndpoint":null,"reservedBits":0,"manufacturerCode":null,"transactionSequenceNumber":null,"writeUndiv":false}) failed (Status 'UNSUPPORTED_ATTRIBUTE')'

The attributes display as null in z2m state view. Battery did work but doesn’t now after re joining the network.

{
"humidity": 71.44,
"linkquality": 224,
"report_delay": 1,
"temperature": 24.31,
"battery": null,
"enable_humidity": null,
"enable_temperature": null,
"high_humidity": null,
"high_temperature": null,
"low_humidity": null,
"low_temperature": null
}

Any ideas?

Hello,

Does this also work after the flash with deCONZ (Conbee II)?
The standard firmware is currently very unreliable. A few devices keep losing connection with the original firmware. Does it run more reliably with the flash software?

Regards :)

Values higher than 60 seconds are not accepted.
Error in zigbee2mqtt log (example 120 seconds):
error 2023-04-17 23:30:31: Publish 'set' 'report_delay' to '0x00124b00290f7b50' failed: 'Error: Write 0x00124b00290f7b50/1 genPowerCfg({"513":{"value":120,"type":33}}, {"sendWhen":"immediate","timeout":10000,"disableResponse":false,"disableRecovery":false,"disableDefaultResponse":true,"direction":0,"srcEndpoint":null,"reservedBits":0,"manufacturerCode":null,"transactionSequenceNumber":null,"writeUndiv":false}) failed (Data request failed with error: 'MAC transaction expired' (240))'

I have no idea if it's possible or not, but I'm curious if you see a way to add a rotary encoder, a selector button, and a display to turn the snzb-02 into a fully funtioning room thermostat on it's own.

How did you keep the tiny reset switch in place when dissassembling and reassembling everything?

Or do you not care, given the new firmware can behave however you want.

I got one where it had already fallen off, I could not reset it, and thought it was broken. I opened it up, and the switch had fallen off and was in the case.

I opened a working one and figured out where and how it attaches, but ended up knocking its switch loose too when putting it back together.

On both, with difficulty I can place and hold the switch, put the inner case on, add the battery, click it and get it to work. But the switch just falls off after that - there is nothing to hold it in place. I won't be able to reset them again without disassembling and repeating the process.

In hindsight, I could probably open a working one and leave the PCB in the outer case without touching the switch, but pulling the whole thing out and inserting it again looks like it'll just pull the switch off.

I have checked certain similar issues reported:

closedcube/ClosedCube_HDC1080_Arduino#11
closedcube/ClosedCube_HDC1080_Arduino#13

Tried to add user_delay_ms(20) at two place in the code, but no success so far.

• Do you have any idea for any debug/proper fix for that?

I have installed SNZB-02_EFEKTA_H.hex and am just doing some tests. Control of temperature works as expected but there seems to be an issue with humidity control. My settings:

• enable_hum: on
• high_hum:55
• low_hum: 45

Now I am alternately breathing or blowing to the sensor so the humidity changes between 40 and 60 what is also shown in the measured humidity value.
But the linked (cluster on/off) zigbee device does not react accordingly.

I took a look to the code which however seems to be for the old version but there is a wrong statement in line 426:

if(zclApp_Config.EnableHum == 1){
      if(zclApp_HumiditySensor_MeasuredValue >= zclApp_Config.HighHum*100){
      zclGeneral_SendOnOff_CmdOn(zclApp_FirstEP.EndPoint, &inderect_DstAddr, TRUE, bdb_getZCLFrameCounter());
    }else if(zclApp_HumiditySensor_MeasuredValue <= zclApp_Config.HighHum*100){
      zclGeneral_SendOnOff_CmdOff(zclApp_FirstEP.EndPoint, &inderect_DstAddr, TRUE, bdb_getZCLFrameCounter());
    }
   }
}

both "if statements" compare with zclApp_Config.HighHum but in line 426 it should be zclApp_Config.LowHum in my opinion.
Maybe this is still in the new version. Do you mind to check it and fix it if so?

Is it possible to update sources to the latest .hex firmware with an extended number of attributes(comparison_previous_data and etc)?