Enable Fahrenheit in ZHA

[scarolan]

I'm not seeing a cluster for toggling between C and F.

I'm running the latest 1.0.6 firmware. Is it possible to change the display to Fahrenheit with ZHA?

[devbis]

While I'm figuring out why it is not exposed to UI, you may try ZHA toolkit https://github.com/mdeweerd/zha-toolkit#attr_write-writeread-an-attribute-value and write 1 (Fahrenheit) to

• endpoint 1
• cluster 0x0204
• attribute 0x0000
• attr_type 0x30
• value 1

[scarolan]

Thanks @devbis - I tried the workaround but ZHA toolkit throws an error

Also am not seeing a 0x0204 cluster - there is an 0x0402 though?

[devbis]

You should use 0x0204 Thermostat User Interface Configuration, which is absent in the list.
If you're sure you're using 1.0.6, it could be a filter on ZHA side.
Though, it is mentioned in zigpy: https://github.com/zigpy/zigpy/blob/dev/zigpy/zcl/clusters/hvac.py#L658-L670

[pvvx]

https://github.com/mdeweerd/zha-toolkit/blob/main/custom_components/zha_toolkit/utils.py#L444
Log:
Exception: No endpoint None and no cluster 0x0204 for 'a4:c1:38:0b:5e:ed:c6:97'

The ZHA toolkit can't access other clusters it doesn't want to :)

[scarolan]

No worries, I can wait. The degrees on the display is not mission critical for my use case.

[devbis]

@scarolan At last I was able to check switching to degrees Fahrenheit in ZHA. Unfortunately, raw zha just ignores cluster 0x0204, so I used zha-toolkit. (ieee - any entity from the device, battery, temperature, humidity, doesn't matter)

service: zha_toolkit.attr_write
data:
  ieee: sensor.xiaomi_lywsd03mmc_battery
  cluster: 516
  attribute: 0
  attr_val: "1"

I used developer mode to run services. Can you please try it?

[pvvx]

Unfortunately, raw zha just ignores cluster 0x0204, so I used zha-toolkit.

The cluster 0x0204 is not declared in the lists in the firmware.
pvvx/ZigbeeTLc#28
pvvx/ZigbeeTLc#30

[scarolan]

Nice! What should I put for "Target Cluster"? I tried 516 like the example but didn't get a result.

[scarolan]

I'm good with BLE for now, will keep my single Celsius Zigbee device for quick reference ;-)

[devbis]

@scarolan The latest firmware supports switching via 1 sec pressing on reset-gnd contacts.
And switching via cluster attribute is also fixed.

[scarolan]

Nice work, @devbis!