Fix vendor, state and add cooling mode to Bosch room thermostat II 230V (BTH-RM230Z)

[aSauerwein]

Hi!

I've added the state/on and fixed the changed the Vendor to Bosch.

with the state/on the devices correctly shows heating in Homeassistant when it's actually heating.

also I realized that my thermostat were running in draft mode, because the vendor was wrong in the ddf file.

[github-actions]

Hey @aSauerwein, thanks for your pull request!

Tip

Modified bundles can be downloaded here.

DDB changes

Modified

• bosch/room_thermostat2_230V.json : Room thermostat II 230V (BTH-RM230Z) ✔️

Validation

Tip

Everything is fine !

_{🕛 Updated for commit 60130f3}

[mattreim]

Hello @aSauerwein, the manufacturer name is really written in lower case but according to your description the device does not have an on/off cluster (0006). Maybe @SwoopX knows another way.

[aSauerwein]

I don't know how, but somehow it works.

I think this 0x0029 in cluster 0201 is responsible for the heating state.
heating "on" :

phoscon rest api output - http://192.168.200.6/api/{{token}}/devices/00:1e:5e:09:02:9d:ba:cd

...
            "state": {
                "errorcode": {
                    "lastupdated": "2024-12-08T22:17:12Z",
                    "value": "0"
                },
                "on": {
                    "lastupdated": "2025-01-11T08:47:02Z",
                    "value": true
                },
...

not heating "off":

phoscon rest api output - http://192.168.200.6/api/{{token}}/devices/00:1e:5e:09:02:9d:ba:cd

...
            "state": {
                "errorcode": {
                    "lastupdated": "2024-12-08T22:17:12Z",
                    "value": "0"
                },
                "on": {
                    "lastupdated": "2025-01-11T08:48:10Z",
                    "value": false
                },
...

I know you are right. I cannot see any 0x0006 cluster. cannot explain why it still works 🤷

[SwoopX]

Hi together,

that this works, is more or less a coincidence due to the fact that we've bent a lot back in the days to make things appear to work. So this is legacy heritage which will cease to function once the older code gets more and more removed over time.

To have it sustainable, the parser function for the attribute needs to be properly defined to fit the attribute at hand. So, it would be probably like this (also considering we might want to read the value to not solely rely on reporting):

{
  "name": "state/on",
  "refresh.interval": 3660,
  "parse": {
    "at": "0x0029",
    "cl": "0x0201",
    "ep": 1,
    "eval": "Item.val = Attr.val;",
    "fn": "zcl:attr"
  },
  "read": {
    "at": "0x0029",
    "cl": "0x0201",
    "ep": 1,
    "fn": "zcl:attr"
  }
},

[mattreim]

Hello @aSauerwein, here is the adapted DDF for the BTH-RM230Z.

Changes:

• Add config/coolsetpoint
• Add config/preset
• Add state/on
• Change vendor
• Change config/mode

room_thermostat2_230V.json

[aSauerwein]

thanks @mattreim !
I implemented your changes and updated the branch

[mattreim]

I think the title needs to be adjusted.

[manup]

Hi are the changes ok now so this PR can be merged?

[mattreim]

@manup Both devices are now the same again (BTH-RM/BTH-RM230Z) and it should work.

And it could be an enhancement with the title: Add cooling mode to Bosch room thermostat II 230V (BTH-RM230Z)

[github-actions]

This pull request is now merged. The new DDB files have been uploaded to the store.

DDB Files

Modified

• bosch/room_thermostat2_230V.json : Room thermostat II 230V (BTH-RM230Z) : with hash (3dcc7f6f66)

_{🕚 Updated for commit 59a764d}