homecom-alt

Async Python wrapper for controlling Bosch Thermotechnology devices managed by the HomeCom Easy app. Communicates with the pointt-api.bosch-thermotechnology.com REST API using OAuth2 (SingleKey ID) authentication.

Installation

pip install homecom_alt

Device support

Device type	Class	Data model
rac	HomeComRac	BHCDeviceRac
k40 / k30	HomeComK40	BHCDeviceK40
icom	HomeComIcom	BHCDeviceIcom
rrc2	HomeComRrc2	BHCDeviceRrc2
wddw2	HomeComWddw2	BHCDeviceWddw2
commodule	HomeComCommodule	BHCDeviceCommodule
generic	HomeComGeneric	BHCDeviceGeneric
bacon_rac	HomeComBaconRac	BHCDeviceBaconRac

Matter-commissioned ACs (Bacon)

Bosch Climate ACs commissioned over Matter in the HomeCom Easy app (serials like 86DM-580-…) are not pointt gateways, so they never appear in HomeComAlt.async_get_devices(). They are managed by Bosch's bacon backend and controlled through an AWS-IoT-style device shadow over MQTT 5 (WebSocket), which requires the extra paho-mqtt dependency (installed automatically).

• Discover them with async_get_bacon_devices(session, token, region) — returns the same {"deviceId", "deviceType": "bacon_rac"} shape as the REST discovery.
• Open one shared BaconMqttClient per account (async_connect(token, sub)), then wrap each serial in a HomeComBaconRac for async_update() and the async_set_power / async_set_mode / async_set_temperature / async_set_fan / async_set_swing controls.
• The region defaults to euc1 (eu-central-1); use1 also exists.

Authentication

ConnectionOptions supports two auth flows:

• OAuth2 code flow (recommended): provide username and code obtained from the SingleKey ID authorization endpoint, and set auth_provider=True when calling HomeComAlt.create().
• Token reuse: provide an existing token and optionally refresh_token to skip the login step.

The brand field defaults to "bosch" — use "buderus" for Buderus-branded devices.

Usage

See example.py for a full working example.

Error handling

Exception	Raised when
AuthFailedError	OAuth2 authentication fails
ApiError	API returns an error response
NotRespondingError	Device does not respond (retried up to 5 times with exponential backoff)
InvalidSensorDataError	Sensor data cannot be parsed

All exceptions inherit from BhcError.

Development

uv is required. Install it once, then:

git clone https://github.com/serbanb11/homecom_alt.git
cd homecom_alt
uv sync --group dev
uv run pre-commit install

Run the checks:

uv run pytest --timeout=30 --cov=homecom_alt tests/   # tests
uv run ruff check . && uv run ruff format --check .   # lint
uv run mypy homecom_alt                               # types

License

MIT