Add honeywell_string_lights integration

Introduce a new Honeywell String Lights integration that drives the
lights over the radio_frequency entity platform. The OOK turn on/off
commands are provided by the rf-protocols library.

Bump the rf-protocols requirement to 0.1.0 across radio_frequency and
honeywell_string_lights.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

CODEOWNERS

@@ -752,6 +752,8 @@ CLAUDE.md @home-assistant/core
 /tests/components/homewizard/ @DCSBL
 /homeassistant/components/honeywell/ @rdfurman @mkmer
 /tests/components/honeywell/ @rdfurman @mkmer
+/homeassistant/components/honeywell_string_lights/ @balloob
+/tests/components/honeywell_string_lights/ @balloob
 /homeassistant/components/hr_energy_qube/ @MattieGit
 /tests/components/hr_energy_qube/ @MattieGit
 /homeassistant/components/html5/ @alexyao2015 @tr4nt0r

homeassistant/brands/honeywell.json

@@ -1,5 +1,5 @@
 {
   "domain": "honeywell",
   "name": "Honeywell",
-  "integrations": ["lyric", "evohome", "honeywell"]
+  "integrations": ["lyric", "evohome", "honeywell", "honeywell_string_lights"]
 }

homeassistant/components/honeywell_string_lights/__init__.py

@@ -0,0 +1,20 @@
+"""The Honeywell String Lights integration."""
+
+from __future__ import annotations
+
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import Platform
+from homeassistant.core import HomeAssistant
+
+PLATFORMS: list[Platform] = [Platform.LIGHT]
+
+
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+    """Set up Honeywell String Lights from a config entry."""
+    await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
+    return True
+
+
+async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+    """Unload a config entry."""
+    return await hass.config_entries.async_unload_platforms(entry, PLATFORMS)

homeassistant/components/honeywell_string_lights/config_flow.py

@@ -0,0 +1,59 @@
+"""Config flow for the Honeywell String Lights integration."""
+
+from __future__ import annotations
+
+from typing import Any
+
+from rf_protocols import HoneywellStringLightsTurnOn
+import voluptuous as vol
+
+from homeassistant.components.radio_frequency import async_get_transmitters
+from homeassistant.config_entries import ConfigFlow, ConfigFlowResult
+from homeassistant.exceptions import HomeAssistantError
+from homeassistant.helpers import entity_registry as er, selector
+
+from .const import CONF_TRANSMITTER, DOMAIN
+
+_SAMPLE_COMMAND = HoneywellStringLightsTurnOn()
+
+
+class HoneywellStringLightsConfigFlow(ConfigFlow, domain=DOMAIN):
+    """Handle a config flow for Honeywell String Lights."""
+
+    VERSION = 1
+
+    async def async_step_user(
+        self, user_input: dict[str, Any] | None = None
+    ) -> ConfigFlowResult:
+        """Handle the initial step."""
+        try:
+            transmitters = async_get_transmitters(
+                self.hass, _SAMPLE_COMMAND.frequency, _SAMPLE_COMMAND.modulation
+            )
+        except HomeAssistantError:
+            return self.async_abort(reason="no_transmitters")
+
+        if not transmitters:
+            return self.async_abort(reason="no_compatible_transmitters")
+
+        if user_input is not None:
+            registry = er.async_get(self.hass)
+            entity_entry = registry.async_get(user_input[CONF_TRANSMITTER])
+            assert entity_entry is not None
+            await self.async_set_unique_id(entity_entry.id)
+            self._abort_if_unique_id_configured()
+            return self.async_create_entry(
+                title="Honeywell String Lights",
+                data={CONF_TRANSMITTER: entity_entry.id},
+            )
+
+        return self.async_show_form(
+            step_id="user",
+            data_schema=vol.Schema(
+                {
+                    vol.Required(CONF_TRANSMITTER): selector.EntitySelector(
+                        selector.EntitySelectorConfig(include_entities=transmitters),
+                    ),
+                }
+            ),
+        )

homeassistant/components/honeywell_string_lights/const.py

@@ -0,0 +1,9 @@
+"""Constants for the Honeywell String Lights integration."""
+
+from __future__ import annotations
+
+from typing import Final
+
+DOMAIN: Final = "honeywell_string_lights"
+
+CONF_TRANSMITTER: Final = "transmitter"

homeassistant/components/honeywell_string_lights/light.py

@@ -0,0 +1,78 @@
+"""Light platform for Honeywell String Lights."""
+
+from __future__ import annotations
+
+from typing import Any
+
+from rf_protocols import (
+    HoneywellStringLightsTurnOff,
+    HoneywellStringLightsTurnOn,
+    RadioFrequencyCommand,
+)
+
+from homeassistant.components.light import ColorMode, LightEntity
+from homeassistant.components.radio_frequency import async_send_command
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import STATE_ON
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.device_registry import DeviceInfo
+from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
+from homeassistant.helpers.restore_state import RestoreEntity
+
+from .const import CONF_TRANSMITTER, DOMAIN
+
+PARALLEL_UPDATES = 1
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    config_entry: ConfigEntry,
+    async_add_entities: AddConfigEntryEntitiesCallback,
+) -> None:
+    """Set up the Honeywell String Lights light platform."""
+    async_add_entities([HoneywellStringLight(config_entry)])
+
+
+class HoneywellStringLight(LightEntity, RestoreEntity):
+    """Representation of a Honeywell String Lights set controlled via RF."""
+
+    _attr_assumed_state = True
+    _attr_color_mode = ColorMode.ONOFF
+    _attr_supported_color_modes = {ColorMode.ONOFF}
+    _attr_has_entity_name = True
+    _attr_name = None
+    _attr_should_poll = False
+
+    def __init__(self, config_entry: ConfigEntry) -> None:
+        """Initialize the light."""
+        self._transmitter = config_entry.data[CONF_TRANSMITTER]
+        self._attr_unique_id = config_entry.entry_id
+        self._attr_device_info = DeviceInfo(
+            identifiers={(DOMAIN, config_entry.entry_id)},
+            manufacturer="Honeywell",
+            model="String Lights",
+            name=config_entry.title,
+        )
+        self._attr_is_on = False
+
+    async def async_added_to_hass(self) -> None:
+        """Restore last known state."""
+        await super().async_added_to_hass()
+        if (last_state := await self.async_get_last_state()) is not None:
+            self._attr_is_on = last_state.state == STATE_ON
+
+    async def async_turn_on(self, **kwargs: Any) -> None:
+        """Turn on the light."""
+        await self._async_send_command(HoneywellStringLightsTurnOn())
+        self._attr_is_on = True
+        self.async_write_ha_state()
+
+    async def async_turn_off(self, **kwargs: Any) -> None:
+        """Turn off the light."""
+        await self._async_send_command(HoneywellStringLightsTurnOff())
+        self._attr_is_on = False
+        self.async_write_ha_state()
+
+    async def _async_send_command(self, command: RadioFrequencyCommand) -> None:
+        """Send an RF command using the configured transmitter."""
+        await async_send_command(self.hass, self._transmitter, command)

homeassistant/components/honeywell_string_lights/manifest.json

@@ -0,0 +1,12 @@
+{
+  "domain": "honeywell_string_lights",
+  "name": "Honeywell String Lights",
+  "codeowners": ["@balloob"],
+  "config_flow": true,
+  "dependencies": ["radio_frequency"],
+  "documentation": "https://www.home-assistant.io/integrations/honeywell_string_lights",
+  "integration_type": "device",
+  "iot_class": "assumed_state",
+  "quality_scale": "bronze",
+  "requirements": ["rf-protocols==0.1.0"]
+}

homeassistant/components/honeywell_string_lights/quality_scale.yaml

@@ -0,0 +1,124 @@
+rules:
+  # Bronze
+  action-setup:
+    status: exempt
+    comment: |
+      This integration does not register custom service actions.
+  appropriate-polling:
+    status: exempt
+    comment: |
+      This integration transmits RF commands and does not poll.
+  brands: done
+  common-modules: done
+  config-flow-test-coverage: done
+  config-flow: done
+  dependency-transparency: done
+  docs-actions:
+    status: exempt
+    comment: |
+      This integration does not register custom service actions.
+  docs-high-level-description: done
+  docs-installation-instructions: done
+  docs-removal-instructions: done
+  entity-event-setup: done
+  entity-unique-id: done
+  has-entity-name: done
+  runtime-data:
+    status: exempt
+    comment: |
+      This integration does not use runtime data.
+  test-before-configure:
+    status: exempt
+    comment: |
+      RF transmission is a one-way broadcast with no device to contact.
+  test-before-setup:
+    status: exempt
+    comment: |
+      RF transmission is a one-way broadcast with no device to contact.
+  unique-config-entry: done
+  # Silver
+  action-exceptions: done
+  config-entry-unloading: done
+  docs-configuration-parameters:
+    status: exempt
+    comment: |
+      This integration has no options.
+  docs-installation-parameters: todo
+  entity-unavailable:
+    status: exempt
+    comment: |
+      RF transmission is a one-way broadcast; the light uses assumed state.
+  integration-owner: done
+  log-when-unavailable:
+    status: exempt
+    comment: |
+      RF transmission is a one-way broadcast; the light uses assumed state.
+  parallel-updates: done
+  reauthentication-flow:
+    status: exempt
+    comment: |
+      This integration does not authenticate.
+  test-coverage: todo
+  # Gold
+  devices: done
+  diagnostics: todo
+  discovery-update-info:
+    status: exempt
+    comment: |
+      This integration does not support discovery.
+  discovery:
+    status: exempt
+    comment: |
+      RF devices cannot be discovered.
+  docs-data-update:
+    status: exempt
+    comment: |
+      RF transmission is one-way; there is no data update.
+  docs-examples: todo
+  docs-known-limitations: todo
+  docs-supported-devices: todo
+  docs-supported-functions: todo
+  docs-troubleshooting: todo
+  docs-use-cases: todo
+  dynamic-devices:
+    status: exempt
+    comment: |
+      Each config entry represents a single static device.
+  entity-category:
+    status: exempt
+    comment: |
+      The single entity represents the primary device function.
+  entity-device-class:
+    status: exempt
+    comment: |
+      Light entities do not have device classes.
+  entity-disabled-by-default:
+    status: exempt
+    comment: |
+      The single entity represents the primary device function.
+  entity-translations:
+    status: exempt
+    comment: |
+      The entity uses the device name.
+  exception-translations: todo
+  icon-translations:
+    status: exempt
+    comment: |
+      Light uses the default icon for its state.
+  reconfiguration-flow: todo
+  repair-issues:
+    status: exempt
+    comment: |
+      No known repairable issues.
+  stale-devices:
+    status: exempt
+    comment: |
+      Each config entry represents a single static device.
+
+  # Platinum
+  async-dependency: done
+  inject-websession:
+    status: exempt
+    comment: |
+      This integration does not use a web session.
+  strict-typing: todo

homeassistant/components/honeywell_string_lights/strings.json

@@ -0,0 +1,19 @@
+{
+  "config": {
+    "abort": {
+      "already_configured": "[%key:common::config_flow::abort::already_configured_device%]",
+      "no_compatible_transmitters": "No radio frequency transmitter supports 433.92 MHz OOK transmissions. Please add a compatible transmitter first.",
+      "no_transmitters": "No radio frequency transmitters are available. Please set up a transmitter first."
+    },
+    "step": {
+      "user": {
+        "data": {
+          "transmitter": "Radio frequency transmitter"
+        },
+        "data_description": {
+          "transmitter": "The radio frequency transmitter used to control the Honeywell String Lights."
+        }
+      }
+    }
+  }
+}

homeassistant/components/radio_frequency/manifest.json

@@ -5,5 +5,5 @@
   "documentation": "https://www.home-assistant.io/integrations/radio_frequency",
   "integration_type": "entity",
   "quality_scale": "internal",
-  "requirements": ["rf-protocols==0.0.1"]
+  "requirements": ["rf-protocols==0.1.0"]
 }

homeassistant/generated/config_flows.py

@@ -309,6 +309,7 @@ FLOWS = {
         "homewizard",
         "homeworks",
         "honeywell",
+        "honeywell_string_lights",
         "hr_energy_qube",
         "html5",
         "huawei_lte",

homeassistant/generated/integrations.json

@@ -2963,6 +2963,12 @@
           "config_flow": true,
           "iot_class": "cloud_polling",
           "name": "Honeywell Total Connect Comfort (US)"
+        },
+        "honeywell_string_lights": {
+          "integration_type": "device",
+          "config_flow": true,
+          "iot_class": "assumed_state",
+          "name": "Honeywell String Lights"
         }
       }
     },

requirements.txt

@@ -47,7 +47,7 @@ python-slugify==8.0.4
 PyTurboJPEG==2.2.0
 PyYAML==6.0.3
 requests==2.33.1
-rf-protocols==0.0.1
+rf-protocols==0.1.0
 securetar==2026.4.1
 SQLAlchemy==2.0.49
 standard-aifc==3.13.0

requirements_all.txt

@@ -2827,8 +2827,9 @@ renson-endura-delta==1.7.2
 # homeassistant.components.reolink
 reolink-aio==0.19.1
 
+# homeassistant.components.honeywell_string_lights
 # homeassistant.components.radio_frequency
-rf-protocols==0.0.1
+rf-protocols==0.1.0
 
 # homeassistant.components.idteck_prox
 rfk101py==0.0.1

requirements_test_all.txt

@@ -2408,8 +2408,9 @@ renson-endura-delta==1.7.2
 # homeassistant.components.reolink
 reolink-aio==0.19.1
 
+# homeassistant.components.honeywell_string_lights
 # homeassistant.components.radio_frequency
-rf-protocols==0.0.1
+rf-protocols==0.1.0
 
 # homeassistant.components.rflink
 rflink==0.0.67

tests/components/honeywell_string_lights/__init__.py

@@ -0,0 +1 @@
+"""Tests for the Honeywell String Lights integration."""

tests/components/honeywell_string_lights/conftest.py

@@ -0,0 +1,56 @@
+"""Common fixtures for the Honeywell String Lights tests."""
+
+from __future__ import annotations
+
+import pytest
+
+from homeassistant.components.honeywell_string_lights.const import (
+    CONF_TRANSMITTER,
+    DOMAIN,
+)
+from homeassistant.components.radio_frequency import DATA_COMPONENT, DOMAIN as RF_DOMAIN
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers import entity_registry as er
+from homeassistant.setup import async_setup_component
+
+from tests.common import MockConfigEntry
+from tests.components.radio_frequency.conftest import MockRadioFrequencyEntity
+
+
+@pytest.fixture
+async def mock_transmitter(hass: HomeAssistant) -> MockRadioFrequencyEntity:
+    """Set up the radio_frequency component and register a mock transmitter."""
+    assert await async_setup_component(hass, RF_DOMAIN, {})
+    await hass.async_block_till_done()
+
+    entity = MockRadioFrequencyEntity("test_rf_transmitter")
+    component = hass.data[DATA_COMPONENT]
+    await component.async_add_entities([entity])
+    return entity
+
+
+@pytest.fixture
+def mock_config_entry(
+    hass: HomeAssistant, mock_transmitter: MockRadioFrequencyEntity
+) -> MockConfigEntry:
+    """Return a mock config entry for Honeywell String Lights."""
+    entity_registry = er.async_get(hass)
+    entity_entry = entity_registry.async_get(mock_transmitter.entity_id)
+    assert entity_entry is not None
+    return MockConfigEntry(
+        domain=DOMAIN,
+        title="Honeywell String Lights",
+        data={CONF_TRANSMITTER: entity_entry.id},
+        unique_id=entity_entry.id,
+    )
+
+
+@pytest.fixture
+async def init_integration(
+    hass: HomeAssistant, mock_config_entry: MockConfigEntry
+) -> MockConfigEntry:
+    """Set up the Honeywell String Lights integration."""
+    mock_config_entry.add_to_hass(hass)
+    assert await hass.config_entries.async_setup(mock_config_entry.entry_id)
+    await hass.async_block_till_done()
+    return mock_config_entry

tests/components/honeywell_string_lights/test_config_flow.py

@@ -0,0 +1,89 @@
+"""Test the Honeywell String Lights config flow."""
+
+from __future__ import annotations
+
+from homeassistant.components.honeywell_string_lights.const import (
+    CONF_TRANSMITTER,
+    DOMAIN,
+)
+from homeassistant.components.radio_frequency import DATA_COMPONENT, DOMAIN as RF_DOMAIN
+from homeassistant.config_entries import SOURCE_USER
+from homeassistant.core import HomeAssistant
+from homeassistant.data_entry_flow import FlowResultType
+from homeassistant.helpers import entity_registry as er
+from homeassistant.setup import async_setup_component
+
+from tests.common import MockConfigEntry
+from tests.components.radio_frequency.conftest import MockRadioFrequencyEntity
+
+
+async def test_user_flow(
+    hass: HomeAssistant, mock_transmitter: MockRadioFrequencyEntity
+) -> None:
+    """Test the user config flow creates an entry."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": SOURCE_USER}
+    )
+    assert result["type"] is FlowResultType.FORM
+    assert result["step_id"] == "user"
+
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        user_input={CONF_TRANSMITTER: mock_transmitter.entity_id},
+    )
+
+    entity_registry = er.async_get(hass)
+    entity_entry = entity_registry.async_get(mock_transmitter.entity_id)
+    assert entity_entry is not None
+
+    assert result["type"] is FlowResultType.CREATE_ENTRY
+    assert result["title"] == "Honeywell String Lights"
+    assert result["data"] == {CONF_TRANSMITTER: entity_entry.id}
+    assert result["result"].unique_id == entity_entry.id
+
+
+async def test_unique_id_already_configured(
+    hass: HomeAssistant,
+    mock_transmitter: MockRadioFrequencyEntity,
+    mock_config_entry: MockConfigEntry,
+) -> None:
+    """Test aborting when the same transmitter is already configured."""
+    mock_config_entry.add_to_hass(hass)
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": SOURCE_USER}
+    )
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        user_input={CONF_TRANSMITTER: mock_transmitter.entity_id},
+    )
+
+    assert result["type"] is FlowResultType.ABORT
+    assert result["reason"] == "already_configured"
+
+
+async def test_no_transmitters(hass: HomeAssistant) -> None:
+    """Test the flow aborts when no RF transmitters are registered at all."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": SOURCE_USER}
+    )
+
+    assert result["type"] is FlowResultType.ABORT
+    assert result["reason"] == "no_transmitters"
+
+
+async def test_no_compatible_transmitters(hass: HomeAssistant) -> None:
+    """Test aborting when transmitters exist but none support 433.92 MHz OOK."""
+    assert await async_setup_component(hass, RF_DOMAIN, {})
+    await hass.async_block_till_done()
+    incompatible = MockRadioFrequencyEntity(
+        "incompatible", frequency_ranges=[(868_000_000, 869_000_000)]
+    )
+    await hass.data[DATA_COMPONENT].async_add_entities([incompatible])
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": SOURCE_USER}
+    )
+
+    assert result["type"] is FlowResultType.ABORT
+    assert result["reason"] == "no_compatible_transmitters"

tests/components/honeywell_string_lights/test_light.py

@@ -0,0 +1,91 @@
+"""Tests for the Honeywell String Lights light platform."""
+
+from __future__ import annotations
+
+from rf_protocols import HoneywellStringLightsTurnOff, HoneywellStringLightsTurnOn
+
+from homeassistant.components.light import (
+    DOMAIN as LIGHT_DOMAIN,
+    SERVICE_TURN_OFF,
+    SERVICE_TURN_ON,
+)
+from homeassistant.const import (
+    ATTR_ASSUMED_STATE,
+    ATTR_ENTITY_ID,
+    STATE_OFF,
+    STATE_ON,
+    STATE_UNAVAILABLE,
+)
+from homeassistant.core import HomeAssistant, State
+
+from tests.common import MockConfigEntry, mock_restore_cache
+from tests.components.radio_frequency.conftest import MockRadioFrequencyEntity
+
+ENTITY_ID = "light.honeywell_string_lights"
+
+
+async def test_turn_on_off_sends_commands(
+    hass: HomeAssistant,
+    mock_transmitter: MockRadioFrequencyEntity,
+    init_integration: MockConfigEntry,
+) -> None:
+    """Test turning the light on and off sends the correct RF commands."""
+    state = hass.states.get(ENTITY_ID)
+    assert state is not None
+    assert state.state == STATE_OFF
+    assert state.attributes[ATTR_ASSUMED_STATE] is True
+
+    await hass.services.async_call(
+        LIGHT_DOMAIN,
+        SERVICE_TURN_ON,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
+    )
+
+    assert hass.states.get(ENTITY_ID).state == STATE_ON
+    assert len(mock_transmitter.send_command_calls) == 1
+    command = mock_transmitter.send_command_calls[0]
+    assert isinstance(command, HoneywellStringLightsTurnOn)
+
+    await hass.services.async_call(
+        LIGHT_DOMAIN,
+        SERVICE_TURN_OFF,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
+    )
+
+    assert hass.states.get(ENTITY_ID).state == STATE_OFF
+    assert len(mock_transmitter.send_command_calls) == 2
+    assert isinstance(
+        mock_transmitter.send_command_calls[1], HoneywellStringLightsTurnOff
+    )
+
+
+async def test_restore_state(
+    hass: HomeAssistant,
+    mock_transmitter: MockRadioFrequencyEntity,
+    mock_config_entry: MockConfigEntry,
+) -> None:
+    """Test the light restores its previous on state."""
+    mock_restore_cache(hass, [State(ENTITY_ID, STATE_ON)])
+    mock_config_entry.add_to_hass(hass)
+    assert await hass.config_entries.async_setup(mock_config_entry.entry_id)
+    await hass.async_block_till_done()
+
+    state = hass.states.get(ENTITY_ID)
+    assert state is not None
+    assert state.state == STATE_ON
+
+
+async def test_unload_entry(
+    hass: HomeAssistant, init_integration: MockConfigEntry
+) -> None:
+    """Test unloading the config entry removes the entity."""
+    assert hass.states.get(ENTITY_ID) is not None
+
+    assert await hass.config_entries.async_unload(init_integration.entry_id)
+    await hass.async_block_till_done()
+
+    state = hass.states.get(ENTITY_ID)
+    assert state is not None
+    assert state.state == STATE_UNAVAILABLE