Add support for Kegtron Smart (Beer) Keg Monitor BLE devices (#78709)

CODEOWNERS

@@ -577,6 +577,8 @@ build.json @home-assistant/supervisor
 /homeassistant/components/keenetic_ndms2/ @foxel
 /tests/components/keenetic_ndms2/ @foxel
 /homeassistant/components/kef/ @basnijholt
+/homeassistant/components/kegtron/ @Ernst79
+/tests/components/kegtron/ @Ernst79
 /homeassistant/components/keyboard_remote/ @bendavid @lanrat
 /homeassistant/components/kmtronic/ @dgomes
 /tests/components/kmtronic/ @dgomes

homeassistant/components/kegtron/__init__.py

@@ -0,0 +1,49 @@
+"""The Kegtron integration."""
+from __future__ import annotations
+
+import logging
+
+from kegtron_ble import KegtronBluetoothDeviceData
+
+from homeassistant.components.bluetooth import BluetoothScanningMode
+from homeassistant.components.bluetooth.passive_update_processor import (
+    PassiveBluetoothProcessorCoordinator,
+)
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import Platform
+from homeassistant.core import HomeAssistant
+
+from .const import DOMAIN
+
+PLATFORMS: list[Platform] = [Platform.SENSOR]
+
+_LOGGER = logging.getLogger(__name__)
+
+
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+    """Set up Kegtron BLE device from a config entry."""
+    address = entry.unique_id
+    assert address is not None
+    data = KegtronBluetoothDeviceData()
+    coordinator = hass.data.setdefault(DOMAIN, {})[
+        entry.entry_id
+    ] = PassiveBluetoothProcessorCoordinator(
+        hass,
+        _LOGGER,
+        address=address,
+        mode=BluetoothScanningMode.PASSIVE,
+        update_method=data.update,
+    )
+    await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
+    entry.async_on_unload(
+        coordinator.async_start()
+    )  # only start after all platforms have had a chance to subscribe
+    return True
+
+
+async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+    """Unload a config entry."""
+    if unload_ok := await hass.config_entries.async_unload_platforms(entry, PLATFORMS):
+        hass.data[DOMAIN].pop(entry.entry_id)
+
+    return unload_ok

homeassistant/components/kegtron/config_flow.py

@@ -0,0 +1,94 @@
+"""Config flow for Kegtron ble integration."""
+from __future__ import annotations
+
+from typing import Any
+
+from kegtron_ble import KegtronBluetoothDeviceData as DeviceData
+import voluptuous as vol
+
+from homeassistant.components.bluetooth import (
+    BluetoothServiceInfoBleak,
+    async_discovered_service_info,
+)
+from homeassistant.config_entries import ConfigFlow
+from homeassistant.const import CONF_ADDRESS
+from homeassistant.data_entry_flow import FlowResult
+
+from .const import DOMAIN
+
+
+class KegtronConfigFlow(ConfigFlow, domain=DOMAIN):
+    """Handle a config flow for kegtron."""
+
+    VERSION = 1
+
+    def __init__(self) -> None:
+        """Initialize the config flow."""
+        self._discovery_info: BluetoothServiceInfoBleak | None = None
+        self._discovered_device: DeviceData | None = None
+        self._discovered_devices: dict[str, str] = {}
+
+    async def async_step_bluetooth(
+        self, discovery_info: BluetoothServiceInfoBleak
+    ) -> FlowResult:
+        """Handle the bluetooth discovery step."""
+        await self.async_set_unique_id(discovery_info.address)
+        self._abort_if_unique_id_configured()
+        device = DeviceData()
+        if not device.supported(discovery_info):
+            return self.async_abort(reason="not_supported")
+        self._discovery_info = discovery_info
+        self._discovered_device = device
+        return await self.async_step_bluetooth_confirm()
+
+    async def async_step_bluetooth_confirm(
+        self, user_input: dict[str, Any] | None = None
+    ) -> FlowResult:
+        """Confirm discovery."""
+        assert self._discovered_device is not None
+        device = self._discovered_device
+        assert self._discovery_info is not None
+        discovery_info = self._discovery_info
+        title = device.title or device.get_device_name() or discovery_info.name
+        if user_input is not None:
+            return self.async_create_entry(title=title, data={})
+
+        self._set_confirm_only()
+        placeholders = {"name": title}
+        self.context["title_placeholders"] = placeholders
+        return self.async_show_form(
+            step_id="bluetooth_confirm", description_placeholders=placeholders
+        )
+
+    async def async_step_user(
+        self, user_input: dict[str, Any] | None = None
+    ) -> FlowResult:
+        """Handle the user step to pick discovered device."""
+        if user_input is not None:
+            address = user_input[CONF_ADDRESS]
+            await self.async_set_unique_id(address, raise_on_progress=False)
+            self._abort_if_unique_id_configured()
+            return self.async_create_entry(
+                title=self._discovered_devices[address], data={}
+            )
+
+        current_addresses = self._async_current_ids()
+        for discovery_info in async_discovered_service_info(self.hass, False):
+            address = discovery_info.address
+            if address in current_addresses or address in self._discovered_devices:
+                continue
+            device = DeviceData()
+            if device.supported(discovery_info):
+                self._discovered_devices[address] = (
+                    device.title or device.get_device_name() or discovery_info.name
+                )
+
+        if not self._discovered_devices:
+            return self.async_abort(reason="no_devices_found")
+
+        return self.async_show_form(
+            step_id="user",
+            data_schema=vol.Schema(
+                {vol.Required(CONF_ADDRESS): vol.In(self._discovered_devices)}
+            ),
+        )

homeassistant/components/kegtron/const.py

@@ -0,0 +1,3 @@
+"""Constants for the Kegtron integration."""
+
+DOMAIN = "kegtron"

homeassistant/components/kegtron/device.py

@@ -0,0 +1,35 @@
+"""Support for Kegtron devices."""
+from __future__ import annotations
+
+import logging
+
+from kegtron_ble import DeviceKey, SensorDeviceInfo
+
+from homeassistant.components.bluetooth.passive_update_processor import (
+    PassiveBluetoothEntityKey,
+)
+from homeassistant.const import ATTR_MANUFACTURER, ATTR_MODEL, ATTR_NAME
+from homeassistant.helpers.entity import DeviceInfo
+
+_LOGGER = logging.getLogger(__name__)
+
+
+def device_key_to_bluetooth_entity_key(
+    device_key: DeviceKey,
+) -> PassiveBluetoothEntityKey:
+    """Convert a device key to an entity key."""
+    return PassiveBluetoothEntityKey(device_key.key, device_key.device_id)
+
+
+def sensor_device_info_to_hass(
+    sensor_device_info: SensorDeviceInfo,
+) -> DeviceInfo:
+    """Convert a sensor device info to a sensor device info."""
+    hass_device_info = DeviceInfo({})
+    if sensor_device_info.name is not None:
+        hass_device_info[ATTR_NAME] = sensor_device_info.name
+    if sensor_device_info.manufacturer is not None:
+        hass_device_info[ATTR_MANUFACTURER] = sensor_device_info.manufacturer
+    if sensor_device_info.model is not None:
+        hass_device_info[ATTR_MODEL] = sensor_device_info.model
+    return hass_device_info

homeassistant/components/kegtron/manifest.json

@@ -0,0 +1,16 @@
+{
+  "domain": "kegtron",
+  "name": "Kegtron",
+  "config_flow": true,
+  "documentation": "https://www.home-assistant.io/integrations/kegtron",
+  "bluetooth": [
+    {
+      "connectable": false,
+      "manufacturer_id": 65535
+    }
+  ],
+  "requirements": ["kegtron-ble==0.4.0"],
+  "dependencies": ["bluetooth"],
+  "codeowners": ["@Ernst79"],
+  "iot_class": "local_push"
+}

homeassistant/components/kegtron/sensor.py

@@ -0,0 +1,135 @@
+"""Support for Kegtron sensors."""
+from __future__ import annotations
+
+from typing import Optional, Union
+
+from kegtron_ble import (
+    SensorDeviceClass as KegtronSensorDeviceClass,
+    SensorUpdate,
+    Units,
+)
+
+from homeassistant import config_entries
+from homeassistant.components.bluetooth.passive_update_processor import (
+    PassiveBluetoothDataProcessor,
+    PassiveBluetoothDataUpdate,
+    PassiveBluetoothProcessorCoordinator,
+    PassiveBluetoothProcessorEntity,
+)
+from homeassistant.components.sensor import (
+    SensorDeviceClass,
+    SensorEntity,
+    SensorEntityDescription,
+    SensorStateClass,
+)
+from homeassistant.const import SIGNAL_STRENGTH_DECIBELS_MILLIWATT, VOLUME_LITERS
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity import EntityCategory
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+
+from .const import DOMAIN
+from .device import device_key_to_bluetooth_entity_key, sensor_device_info_to_hass
+
+SENSOR_DESCRIPTIONS = {
+    KegtronSensorDeviceClass.PORT_COUNT: SensorEntityDescription(
+        key=KegtronSensorDeviceClass.PORT_COUNT,
+        icon="mdi:water-pump",
+    ),
+    KegtronSensorDeviceClass.KEG_SIZE: SensorEntityDescription(
+        key=KegtronSensorDeviceClass.KEG_SIZE,
+        icon="mdi:keg",
+        native_unit_of_measurement=VOLUME_LITERS,
+        state_class=SensorStateClass.MEASUREMENT,
+    ),
+    KegtronSensorDeviceClass.KEG_TYPE: SensorEntityDescription(
+        key=KegtronSensorDeviceClass.KEG_TYPE,
+        icon="mdi:keg",
+    ),
+    KegtronSensorDeviceClass.VOLUME_START: SensorEntityDescription(
+        key=KegtronSensorDeviceClass.VOLUME_START,
+        icon="mdi:keg",
+        native_unit_of_measurement=VOLUME_LITERS,
+        state_class=SensorStateClass.MEASUREMENT,
+    ),
+    KegtronSensorDeviceClass.VOLUME_DISPENSED: SensorEntityDescription(
+        key=KegtronSensorDeviceClass.VOLUME_DISPENSED,
+        icon="mdi:keg",
+        native_unit_of_measurement=VOLUME_LITERS,
+        state_class=SensorStateClass.TOTAL,
+    ),
+    KegtronSensorDeviceClass.PORT_STATE: SensorEntityDescription(
+        key=KegtronSensorDeviceClass.PORT_STATE,
+        icon="mdi:water-pump",
+    ),
+    KegtronSensorDeviceClass.PORT_NAME: SensorEntityDescription(
+        key=KegtronSensorDeviceClass.PORT_NAME,
+        icon="mdi:water-pump",
+    ),
+    KegtronSensorDeviceClass.SIGNAL_STRENGTH: SensorEntityDescription(
+        key=f"{KegtronSensorDeviceClass.SIGNAL_STRENGTH}_{Units.SIGNAL_STRENGTH_DECIBELS_MILLIWATT}",
+        device_class=SensorDeviceClass.SIGNAL_STRENGTH,
+        native_unit_of_measurement=SIGNAL_STRENGTH_DECIBELS_MILLIWATT,
+        state_class=SensorStateClass.MEASUREMENT,
+        entity_category=EntityCategory.DIAGNOSTIC,
+        entity_registry_enabled_default=False,
+    ),
+}
+
+
+def sensor_update_to_bluetooth_data_update(
+    sensor_update: SensorUpdate,
+) -> PassiveBluetoothDataUpdate:
+    """Convert a sensor update to a bluetooth data update."""
+    return PassiveBluetoothDataUpdate(
+        devices={
+            device_id: sensor_device_info_to_hass(device_info)
+            for device_id, device_info in sensor_update.devices.items()
+        },
+        entity_descriptions={
+            device_key_to_bluetooth_entity_key(device_key): SENSOR_DESCRIPTIONS[
+                description.device_class
+            ]
+            for device_key, description in sensor_update.entity_descriptions.items()
+            if description.device_class
+        },
+        entity_data={
+            device_key_to_bluetooth_entity_key(device_key): sensor_values.native_value
+            for device_key, sensor_values in sensor_update.entity_values.items()
+        },
+        entity_names={
+            device_key_to_bluetooth_entity_key(device_key): sensor_values.name
+            for device_key, sensor_values in sensor_update.entity_values.items()
+        },
+    )
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    entry: config_entries.ConfigEntry,
+    async_add_entities: AddEntitiesCallback,
+) -> None:
+    """Set up the Kegtron BLE sensors."""
+    coordinator: PassiveBluetoothProcessorCoordinator = hass.data[DOMAIN][
+        entry.entry_id
+    ]
+    processor = PassiveBluetoothDataProcessor(sensor_update_to_bluetooth_data_update)
+    entry.async_on_unload(
+        processor.async_add_entities_listener(
+            KegtronBluetoothSensorEntity, async_add_entities
+        )
+    )
+    entry.async_on_unload(coordinator.async_register_processor(processor))
+
+
+class KegtronBluetoothSensorEntity(
+    PassiveBluetoothProcessorEntity[
+        PassiveBluetoothDataProcessor[Optional[Union[float, int]]]
+    ],
+    SensorEntity,
+):
+    """Representation of a Kegtron sensor."""
+
+    @property
+    def native_value(self) -> int | float | None:
+        """Return the native value."""
+        return self.processor.entity_data.get(self.entity_key)

homeassistant/components/kegtron/strings.json

@@ -0,0 +1,22 @@
+{
+  "config": {
+    "flow_title": "[%key:component::bluetooth::config::flow_title%]",
+    "step": {
+      "user": {
+        "description": "[%key:component::bluetooth::config::step::user::description%]",
+        "data": {
+          "address": "[%key:component::bluetooth::config::step::user::data::address%]"
+        }
+      },
+      "bluetooth_confirm": {
+        "description": "[%key:component::bluetooth::config::step::bluetooth_confirm::description%]"
+      }
+    },
+    "abort": {
+      "not_supported": "Device not supported",
+      "no_devices_found": "[%key:common::config_flow::abort::no_devices_found%]",
+      "already_in_progress": "[%key:common::config_flow::abort::already_in_progress%]",
+      "already_configured": "[%key:common::config_flow::abort::already_configured_device%]"
+    }
+  }
+}

homeassistant/components/kegtron/translations/en.json

@@ -0,0 +1,22 @@
+{
+    "config": {
+        "abort": {
+            "already_configured": "Device is already configured",
+            "already_in_progress": "Configuration flow is already in progress",
+            "no_devices_found": "No devices found on the network",
+            "not_supported": "Device not supported"
+        },
+        "flow_title": "{name}",
+        "step": {
+            "bluetooth_confirm": {
+                "description": "Do you want to setup {name}?"
+            },
+            "user": {
+                "data": {
+                    "address": "Device"
+                },
+                "description": "Choose a device to setup"
+            }
+        }
+    }
+}

homeassistant/generated/bluetooth.py

@@ -148,6 +148,11 @@ BLUETOOTH: list[dict[str, bool | str | int | list[int]]] = [
         "local_name": "tps",
         "connectable": False,
     },
+    {
+        "domain": "kegtron",
+        "connectable": False,
+        "manufacturer_id": 65535,
+    },
     {
         "domain": "led_ble",
         "local_name": "LEDnet*",

homeassistant/generated/config_flows.py

@@ -189,6 +189,7 @@ FLOWS = {
         "justnimbus",
         "kaleidescape",
         "keenetic_ndms2",
+        "kegtron",
         "kmtronic",
         "knx",
         "kodi",

requirements_all.txt

@@ -956,6 +956,9 @@ kaiterra-async-client==1.0.0
 # homeassistant.components.keba
 keba-kecontact==1.1.0
 
+# homeassistant.components.kegtron
+kegtron-ble==0.4.0
+
 # homeassistant.components.kiwi
 kiwiki-client==0.1.1
 

requirements_test_all.txt

@@ -697,6 +697,9 @@ jsonpath==0.82
 # homeassistant.components.justnimbus
 justnimbus==0.6.0
 
+# homeassistant.components.kegtron
+kegtron-ble==0.4.0
+
 # homeassistant.components.konnected
 konnected==1.2.0
 

tests/components/kegtron/__init__.py

@@ -0,0 +1,49 @@
+"""Tests for the Kegtron integration."""
+
+from homeassistant.helpers.service_info.bluetooth import BluetoothServiceInfo
+
+NOT_KEGTRON_SERVICE_INFO = BluetoothServiceInfo(
+    name="Not it",
+    address="61DE521B-F0BF-9F44-64D4-75BBE1738105",
+    rssi=-63,
+    manufacturer_data={3234: b"\x00\x01"},
+    service_data={},
+    service_uuids=[],
+    source="local",
+)
+
+KEGTRON_KT100_SERVICE_INFO = BluetoothServiceInfo(
+    name="D0:CF:5E:5C:9B:75",
+    manufacturer_data={
+        65535: b"I\xef\x13\x88\x02\xe2\x01Single Port\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+    },
+    address="D0:CF:5E:5C:9B:75",
+    rssi=-82,
+    service_data={},
+    service_uuids=[],
+    source="local",
+)
+
+KEGTRON_KT200_PORT_1_SERVICE_INFO = BluetoothServiceInfo(
+    name="D0:CF:5E:5C:9B:75",
+    manufacturer_data={
+        65535: b"#P\xc3P2\xc8APort 1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+    },
+    address="D0:CF:5E:5C:9B:75",
+    rssi=-82,
+    service_uuids=[],
+    service_data={},
+    source="local",
+)
+
+KEGTRON_KT200_PORT_2_SERVICE_INFO = BluetoothServiceInfo(
+    name="D0:CF:5E:5C:9B:75",
+    manufacturer_data={
+        65535: b"\xe62:\x98\x02\xe2Q2nd Port\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+    },
+    address="D0:CF:5E:5C:9B:75",
+    rssi=-82,
+    service_uuids=[],
+    service_data={},
+    source="local",
+)

tests/components/kegtron/conftest.py

@@ -0,0 +1,8 @@
+"""Kegtron session fixtures."""
+
+import pytest
+
+
+@pytest.fixture(autouse=True)
+def mock_bluetooth(enable_bluetooth):
+    """Auto mock bluetooth."""

tests/components/kegtron/test_config_flow.py

@@ -0,0 +1,196 @@
+"""Test the Kegtron config flow."""
+
+from unittest.mock import patch
+
+from homeassistant import config_entries
+from homeassistant.components.kegtron.const import DOMAIN
+from homeassistant.data_entry_flow import FlowResultType
+
+from . import (
+    KEGTRON_KT100_SERVICE_INFO,
+    KEGTRON_KT200_PORT_2_SERVICE_INFO,
+    NOT_KEGTRON_SERVICE_INFO,
+)
+
+from tests.common import MockConfigEntry
+
+
+async def test_async_step_bluetooth_valid_device(hass):
+    """Test discovery via bluetooth with a valid device."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={"source": config_entries.SOURCE_BLUETOOTH},
+        data=KEGTRON_KT100_SERVICE_INFO,
+    )
+    assert result["type"] == FlowResultType.FORM
+    assert result["step_id"] == "bluetooth_confirm"
+    with patch("homeassistant.components.kegtron.async_setup_entry", return_value=True):
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"], user_input={}
+        )
+    assert result2["type"] == FlowResultType.CREATE_ENTRY
+    assert result2["title"] == "Kegtron KT-100 9B75"
+    assert result2["data"] == {}
+    assert result2["result"].unique_id == "D0:CF:5E:5C:9B:75"
+
+
+async def test_async_step_bluetooth_not_kegtron(hass):
+    """Test discovery via bluetooth not kegtron."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={"source": config_entries.SOURCE_BLUETOOTH},
+        data=NOT_KEGTRON_SERVICE_INFO,
+    )
+    assert result["type"] == FlowResultType.ABORT
+    assert result["reason"] == "not_supported"
+
+
+async def test_async_step_user_no_devices_found(hass):
+    """Test setup from service info cache with no devices found."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={"source": config_entries.SOURCE_USER},
+    )
+    assert result["type"] == FlowResultType.ABORT
+    assert result["reason"] == "no_devices_found"
+
+
+async def test_async_step_user_with_found_devices(hass):
+    """Test setup from service info cache with devices found."""
+    with patch(
+        "homeassistant.components.kegtron.config_flow.async_discovered_service_info",
+        return_value=[KEGTRON_KT200_PORT_2_SERVICE_INFO],
+    ):
+        result = await hass.config_entries.flow.async_init(
+            DOMAIN,
+            context={"source": config_entries.SOURCE_USER},
+        )
+    assert result["type"] == FlowResultType.FORM
+    assert result["step_id"] == "user"
+    with patch("homeassistant.components.kegtron.async_setup_entry", return_value=True):
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"],
+            user_input={"address": "D0:CF:5E:5C:9B:75"},
+        )
+    assert result2["type"] == FlowResultType.CREATE_ENTRY
+    assert result2["title"] == "Kegtron KT-200 9B75"
+    assert result2["data"] == {}
+    assert result2["result"].unique_id == "D0:CF:5E:5C:9B:75"
+
+
+async def test_async_step_user_device_added_between_steps(hass):
+    """Test the device gets added via another flow between steps."""
+    with patch(
+        "homeassistant.components.kegtron.config_flow.async_discovered_service_info",
+        return_value=[KEGTRON_KT100_SERVICE_INFO],
+    ):
+        result = await hass.config_entries.flow.async_init(
+            DOMAIN,
+            context={"source": config_entries.SOURCE_USER},
+        )
+    assert result["type"] == FlowResultType.FORM
+    assert result["step_id"] == "user"
+
+    entry = MockConfigEntry(
+        domain=DOMAIN,
+        unique_id="D0:CF:5E:5C:9B:75",
+    )
+    entry.add_to_hass(hass)
+
+    with patch("homeassistant.components.kegtron.async_setup_entry", return_value=True):
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"],
+            user_input={"address": "D0:CF:5E:5C:9B:75"},
+        )
+    assert result2["type"] == FlowResultType.ABORT
+    assert result2["reason"] == "already_configured"
+
+
+async def test_async_step_user_with_found_devices_already_setup(hass):
+    """Test setup from service info cache with devices found."""
+    entry = MockConfigEntry(
+        domain=DOMAIN,
+        unique_id="D0:CF:5E:5C:9B:75",
+    )
+    entry.add_to_hass(hass)
+
+    with patch(
+        "homeassistant.components.kegtron.config_flow.async_discovered_service_info",
+        return_value=[KEGTRON_KT100_SERVICE_INFO],
+    ):
+        result = await hass.config_entries.flow.async_init(
+            DOMAIN,
+            context={"source": config_entries.SOURCE_USER},
+        )
+    assert result["type"] == FlowResultType.ABORT
+    assert result["reason"] == "no_devices_found"
+
+
+async def test_async_step_bluetooth_devices_already_setup(hass):
+    """Test we can't start a flow if there is already a config entry."""
+    entry = MockConfigEntry(
+        domain=DOMAIN,
+        unique_id="D0:CF:5E:5C:9B:75",
+    )
+    entry.add_to_hass(hass)
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={"source": config_entries.SOURCE_BLUETOOTH},
+        data=KEGTRON_KT100_SERVICE_INFO,
+    )
+    assert result["type"] == FlowResultType.ABORT
+    assert result["reason"] == "already_configured"
+
+
+async def test_async_step_bluetooth_already_in_progress(hass):
+    """Test we can't start a flow for the same device twice."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={"source": config_entries.SOURCE_BLUETOOTH},
+        data=KEGTRON_KT100_SERVICE_INFO,
+    )
+    assert result["type"] == FlowResultType.FORM
+    assert result["step_id"] == "bluetooth_confirm"
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={"source": config_entries.SOURCE_BLUETOOTH},
+        data=KEGTRON_KT100_SERVICE_INFO,
+    )
+    assert result["type"] == FlowResultType.ABORT
+    assert result["reason"] == "already_in_progress"
+
+
+async def test_async_step_user_takes_precedence_over_discovery(hass):
+    """Test manual setup takes precedence over discovery."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={"source": config_entries.SOURCE_BLUETOOTH},
+        data=KEGTRON_KT100_SERVICE_INFO,
+    )
+    assert result["type"] == FlowResultType.FORM
+    assert result["step_id"] == "bluetooth_confirm"
+
+    with patch(
+        "homeassistant.components.kegtron.config_flow.async_discovered_service_info",
+        return_value=[KEGTRON_KT100_SERVICE_INFO],
+    ):
+        result = await hass.config_entries.flow.async_init(
+            DOMAIN,
+            context={"source": config_entries.SOURCE_USER},
+        )
+        assert result["type"] == FlowResultType.FORM
+
+    with patch("homeassistant.components.kegtron.async_setup_entry", return_value=True):
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"],
+            user_input={"address": "D0:CF:5E:5C:9B:75"},
+        )
+    assert result2["type"] == FlowResultType.CREATE_ENTRY
+    assert result2["title"] == "Kegtron KT-100 9B75"
+    assert result2["data"] == {}
+    assert result2["result"].unique_id == "D0:CF:5E:5C:9B:75"
+
+    # Verify the original one was aborted
+    assert not hass.config_entries.flow.async_progress(DOMAIN)

tests/components/kegtron/test_sensor.py

@@ -0,0 +1,248 @@
+"""Test the Kegtron sensors."""
+
+from homeassistant.components.kegtron.const import DOMAIN
+from homeassistant.components.sensor import ATTR_STATE_CLASS
+from homeassistant.const import ATTR_FRIENDLY_NAME, ATTR_UNIT_OF_MEASUREMENT
+
+from . import (
+    KEGTRON_KT100_SERVICE_INFO,
+    KEGTRON_KT200_PORT_1_SERVICE_INFO,
+    KEGTRON_KT200_PORT_2_SERVICE_INFO,
+)
+
+from tests.common import MockConfigEntry
+from tests.components.bluetooth import inject_bluetooth_service_info
+
+
+async def test_sensors_kt100(hass):
+    """Test setting up creates the sensors for Kegtron KT-100."""
+    entry = MockConfigEntry(
+        domain=DOMAIN,
+        unique_id="D0:CF:5E:5C:9B:75",
+    )
+    entry.add_to_hass(hass)
+
+    assert await hass.config_entries.async_setup(entry.entry_id)
+    await hass.async_block_till_done()
+
+    assert len(hass.states.async_all("sensor")) == 0
+
+    inject_bluetooth_service_info(
+        hass,
+        KEGTRON_KT100_SERVICE_INFO,
+    )
+    await hass.async_block_till_done()
+    assert len(hass.states.async_all("sensor")) == 7
+
+    port_count_sensor = hass.states.get("sensor.kegtron_kt_100_9b75_port_count")
+    port_count_sensor_attrs = port_count_sensor.attributes
+    assert port_count_sensor.state == "Single port device"
+    assert (
+        port_count_sensor_attrs[ATTR_FRIENDLY_NAME] == "Kegtron KT-100 9B75 Port Count"
+    )
+
+    keg_size_sensor = hass.states.get("sensor.kegtron_kt_100_9b75_keg_size")
+    keg_size_sensor_attrs = keg_size_sensor.attributes
+    assert keg_size_sensor.state == "18.927"
+    assert keg_size_sensor_attrs[ATTR_FRIENDLY_NAME] == "Kegtron KT-100 9B75 Keg Size"
+    assert keg_size_sensor_attrs[ATTR_UNIT_OF_MEASUREMENT] == "L"
+    assert keg_size_sensor_attrs[ATTR_STATE_CLASS] == "measurement"
+
+    keg_type_sensor = hass.states.get("sensor.kegtron_kt_100_9b75_keg_type")
+    keg_type_sensor_attrs = keg_type_sensor.attributes
+    assert keg_type_sensor.state == "Corny (5.0 gal)"
+    assert keg_type_sensor_attrs[ATTR_FRIENDLY_NAME] == "Kegtron KT-100 9B75 Keg Type"
+
+    volume_start_sensor = hass.states.get("sensor.kegtron_kt_100_9b75_volume_start")
+    volume_start_sensor_attrs = volume_start_sensor.attributes
+    assert volume_start_sensor.state == "5.0"
+    assert (
+        volume_start_sensor_attrs[ATTR_FRIENDLY_NAME]
+        == "Kegtron KT-100 9B75 Volume Start"
+    )
+    assert volume_start_sensor_attrs[ATTR_UNIT_OF_MEASUREMENT] == "L"
+    assert volume_start_sensor_attrs[ATTR_STATE_CLASS] == "measurement"
+
+    volume_dispensed_sensor = hass.states.get(
+        "sensor.kegtron_kt_100_9b75_volume_dispensed"
+    )
+    volume_dispensed_attrs = volume_dispensed_sensor.attributes
+    assert volume_dispensed_sensor.state == "0.738"
+    assert (
+        volume_dispensed_attrs[ATTR_FRIENDLY_NAME]
+        == "Kegtron KT-100 9B75 Volume Dispensed"
+    )
+    assert volume_dispensed_attrs[ATTR_UNIT_OF_MEASUREMENT] == "L"
+    assert volume_dispensed_attrs[ATTR_STATE_CLASS] == "total"
+
+    port_state_sensor = hass.states.get("sensor.kegtron_kt_100_9b75_port_state")
+    port_state_sensor_attrs = port_state_sensor.attributes
+    assert port_state_sensor.state == "Configured"
+    assert (
+        port_state_sensor_attrs[ATTR_FRIENDLY_NAME] == "Kegtron KT-100 9B75 Port State"
+    )
+
+    port_name_sensor = hass.states.get("sensor.kegtron_kt_100_9b75_port_name")
+    port_name_attrs = port_name_sensor.attributes
+    assert port_name_sensor.state == "Single Port"
+    assert port_name_attrs[ATTR_FRIENDLY_NAME] == "Kegtron KT-100 9B75 Port Name"
+
+    assert await hass.config_entries.async_unload(entry.entry_id)
+    await hass.async_block_till_done()
+
+
+async def test_sensors_kt200(hass):
+    """Test setting up creates the sensors for Kegtron KT-200."""
+    entry = MockConfigEntry(
+        domain=DOMAIN,
+        unique_id="D0:CF:5E:5C:9B:75",
+    )
+    entry.add_to_hass(hass)
+
+    assert await hass.config_entries.async_setup(entry.entry_id)
+    await hass.async_block_till_done()
+
+    assert len(hass.states.async_all("sensor")) == 0
+
+    # Kegtron KT-200 has two ports that are reported separately, start with port 2
+    inject_bluetooth_service_info(
+        hass,
+        KEGTRON_KT200_PORT_2_SERVICE_INFO,
+    )
+    await hass.async_block_till_done()
+    assert len(hass.states.async_all("sensor")) == 7
+
+    port_count_sensor = hass.states.get("sensor.kegtron_kt_200_9b75_port_count")
+    port_count_sensor_attrs = port_count_sensor.attributes
+    assert port_count_sensor.state == "Dual port device"
+    assert (
+        port_count_sensor_attrs[ATTR_FRIENDLY_NAME] == "Kegtron KT-200 9B75 Port Count"
+    )
+
+    keg_size_sensor = hass.states.get("sensor.kegtron_kt_200_9b75_keg_size_port_2")
+    keg_size_sensor_attrs = keg_size_sensor.attributes
+    assert keg_size_sensor.state == "58.93"
+    assert (
+        keg_size_sensor_attrs[ATTR_FRIENDLY_NAME]
+        == "Kegtron KT-200 9B75 Keg Size Port 2"
+    )
+    assert keg_size_sensor_attrs[ATTR_UNIT_OF_MEASUREMENT] == "L"
+    assert keg_size_sensor_attrs[ATTR_STATE_CLASS] == "measurement"
+
+    keg_type_sensor = hass.states.get("sensor.kegtron_kt_200_9b75_keg_type_port_2")
+    keg_type_sensor_attrs = keg_type_sensor.attributes
+    assert keg_type_sensor.state == "Other (58.93 L)"
+    assert (
+        keg_type_sensor_attrs[ATTR_FRIENDLY_NAME]
+        == "Kegtron KT-200 9B75 Keg Type Port 2"
+    )
+
+    volume_start_sensor = hass.states.get(
+        "sensor.kegtron_kt_200_9b75_volume_start_port_2"
+    )
+    volume_start_sensor_attrs = volume_start_sensor.attributes
+    assert volume_start_sensor.state == "15.0"
+    assert (
+        volume_start_sensor_attrs[ATTR_FRIENDLY_NAME]
+        == "Kegtron KT-200 9B75 Volume Start Port 2"
+    )
+    assert volume_start_sensor_attrs[ATTR_UNIT_OF_MEASUREMENT] == "L"
+    assert volume_start_sensor_attrs[ATTR_STATE_CLASS] == "measurement"
+
+    volume_dispensed_sensor = hass.states.get(
+        "sensor.kegtron_kt_200_9b75_volume_dispensed_port_2"
+    )
+    volume_dispensed_attrs = volume_dispensed_sensor.attributes
+    assert volume_dispensed_sensor.state == "0.738"
+    assert (
+        volume_dispensed_attrs[ATTR_FRIENDLY_NAME]
+        == "Kegtron KT-200 9B75 Volume Dispensed Port 2"
+    )
+    assert volume_dispensed_attrs[ATTR_UNIT_OF_MEASUREMENT] == "L"
+    assert volume_dispensed_attrs[ATTR_STATE_CLASS] == "total"
+
+    port_state_sensor = hass.states.get("sensor.kegtron_kt_200_9b75_port_state_port_2")
+    port_state_sensor_attrs = port_state_sensor.attributes
+    assert port_state_sensor.state == "Configured"
+    assert (
+        port_state_sensor_attrs[ATTR_FRIENDLY_NAME]
+        == "Kegtron KT-200 9B75 Port State Port 2"
+    )
+
+    port_name_sensor = hass.states.get("sensor.kegtron_kt_200_9b75_port_name_port_2")
+    port_name_attrs = port_name_sensor.attributes
+    assert port_name_sensor.state == "2nd Port"
+    assert port_name_attrs[ATTR_FRIENDLY_NAME] == "Kegtron KT-200 9B75 Port Name Port 2"
+
+    # Followed by a BLE advertisement of port 1
+    inject_bluetooth_service_info(
+        hass,
+        KEGTRON_KT200_PORT_1_SERVICE_INFO,
+    )
+    await hass.async_block_till_done()
+    assert len(hass.states.async_all("sensor")) == 13
+
+    port_count_sensor = hass.states.get("sensor.kegtron_kt_200_9b75_port_count")
+    port_count_sensor_attrs = port_count_sensor.attributes
+    assert port_count_sensor.state == "Dual port device"
+    assert (
+        port_count_sensor_attrs[ATTR_FRIENDLY_NAME] == "Kegtron KT-200 9B75 Port Count"
+    )
+
+    keg_size_sensor = hass.states.get("sensor.kegtron_kt_200_9b75_keg_size_port_1")
+    keg_size_sensor_attrs = keg_size_sensor.attributes
+    assert keg_size_sensor.state == "9.04"
+    assert (
+        keg_size_sensor_attrs[ATTR_FRIENDLY_NAME]
+        == "Kegtron KT-200 9B75 Keg Size Port 1"
+    )
+    assert keg_size_sensor_attrs[ATTR_UNIT_OF_MEASUREMENT] == "L"
+    assert keg_size_sensor_attrs[ATTR_STATE_CLASS] == "measurement"
+
+    keg_type_sensor = hass.states.get("sensor.kegtron_kt_200_9b75_keg_type_port_1")
+    keg_type_sensor_attrs = keg_type_sensor.attributes
+    assert keg_type_sensor.state == "Other (9.04 L)"
+    assert (
+        keg_type_sensor_attrs[ATTR_FRIENDLY_NAME]
+        == "Kegtron KT-200 9B75 Keg Type Port 1"
+    )
+
+    volume_start_sensor = hass.states.get(
+        "sensor.kegtron_kt_200_9b75_volume_start_port_1"
+    )
+    volume_start_sensor_attrs = volume_start_sensor.attributes
+    assert volume_start_sensor.state == "50.0"
+    assert (
+        volume_start_sensor_attrs[ATTR_FRIENDLY_NAME]
+        == "Kegtron KT-200 9B75 Volume Start Port 1"
+    )
+    assert volume_start_sensor_attrs[ATTR_UNIT_OF_MEASUREMENT] == "L"
+    assert volume_start_sensor_attrs[ATTR_STATE_CLASS] == "measurement"
+
+    volume_dispensed_sensor = hass.states.get(
+        "sensor.kegtron_kt_200_9b75_volume_dispensed_port_1"
+    )
+    volume_dispensed_attrs = volume_dispensed_sensor.attributes
+    assert volume_dispensed_sensor.state == "13.0"
+    assert (
+        volume_dispensed_attrs[ATTR_FRIENDLY_NAME]
+        == "Kegtron KT-200 9B75 Volume Dispensed Port 1"
+    )
+    assert volume_dispensed_attrs[ATTR_UNIT_OF_MEASUREMENT] == "L"
+    assert volume_dispensed_attrs[ATTR_STATE_CLASS] == "total"
+
+    port_state_sensor = hass.states.get("sensor.kegtron_kt_200_9b75_port_state_port_1")
+    port_state_sensor_attrs = port_state_sensor.attributes
+    assert port_state_sensor.state == "Configured"
+    assert (
+        port_state_sensor_attrs[ATTR_FRIENDLY_NAME]
+        == "Kegtron KT-200 9B75 Port State Port 1"
+    )
+
+    port_name_sensor = hass.states.get("sensor.kegtron_kt_200_9b75_port_name_port_1")
+    port_name_attrs = port_name_sensor.attributes
+    assert port_name_sensor.state == "Port 1"
+    assert port_name_attrs[ATTR_FRIENDLY_NAME] == "Kegtron KT-200 9B75 Port Name Port 1"
+
+    assert await hass.config_entries.async_unload(entry.entry_id)
+    await hass.async_block_till_done()