"""Support for Dutch Smart Meter (also known as Smartmeter or P1 port).""" from __future__ import annotations import asyncio from asyncio import CancelledError from collections.abc import Callable from contextlib import suppress from dataclasses import dataclass from datetime import timedelta from functools import partial from dsmr_parser import obis_references from dsmr_parser.clients.protocol import create_dsmr_reader, create_tcp_dsmr_reader from dsmr_parser.clients.rfxtrx_protocol import ( create_rfxtrx_dsmr_reader, create_rfxtrx_tcp_dsmr_reader, ) from dsmr_parser.objects import DSMRObject import serial from homeassistant.components.sensor import ( SensorDeviceClass, SensorEntity, SensorEntityDescription, SensorStateClass, ) from homeassistant.config_entries import ConfigEntry from homeassistant.const import ( CONF_HOST, CONF_PORT, CONF_PROTOCOL, EVENT_HOMEASSISTANT_STOP, EntityCategory, UnitOfEnergy, UnitOfVolume, ) from homeassistant.core import CoreState, Event, HomeAssistant, callback from homeassistant.helpers import device_registry as dr, entity_registry as er from homeassistant.helpers.device_registry import DeviceInfo from homeassistant.helpers.dispatcher import ( async_dispatcher_connect, async_dispatcher_send, ) from homeassistant.helpers.entity_platform import AddEntitiesCallback from homeassistant.helpers.typing import StateType from homeassistant.util import Throttle from .const import ( CONF_DSMR_VERSION, CONF_SERIAL_ID, CONF_SERIAL_ID_GAS, CONF_TIME_BETWEEN_UPDATE, DATA_TASK, DEFAULT_PRECISION, DEFAULT_RECONNECT_INTERVAL, DEFAULT_TIME_BETWEEN_UPDATE, DEVICE_NAME_ELECTRICITY, DEVICE_NAME_GAS, DEVICE_NAME_WATER, DOMAIN, DSMR_PROTOCOL, LOGGER, ) EVENT_FIRST_TELEGRAM = "dsmr_first_telegram_{}" UNIT_CONVERSION = {"m3": UnitOfVolume.CUBIC_METERS} @dataclass(frozen=True, kw_only=True) class DSMRSensorEntityDescription(SensorEntityDescription): """Represents an DSMR Sensor.""" dsmr_versions: set[str] | None = None is_gas: bool = False is_water: bool = False obis_reference: str SENSORS: tuple[DSMRSensorEntityDescription, ...] = ( DSMRSensorEntityDescription( key="timestamp", obis_reference=obis_references.P1_MESSAGE_TIMESTAMP, device_class=SensorDeviceClass.TIMESTAMP, entity_category=EntityCategory.DIAGNOSTIC, entity_registry_enabled_default=False, ), DSMRSensorEntityDescription( key="current_electricity_usage", translation_key="current_electricity_usage", obis_reference=obis_references.CURRENT_ELECTRICITY_USAGE, device_class=SensorDeviceClass.POWER, state_class=SensorStateClass.MEASUREMENT, ), DSMRSensorEntityDescription( key="current_electricity_delivery", translation_key="current_electricity_delivery", obis_reference=obis_references.CURRENT_ELECTRICITY_DELIVERY, device_class=SensorDeviceClass.POWER, state_class=SensorStateClass.MEASUREMENT, ), DSMRSensorEntityDescription( key="electricity_active_tariff", translation_key="electricity_active_tariff", obis_reference=obis_references.ELECTRICITY_ACTIVE_TARIFF, dsmr_versions={"2.2", "4", "5", "5B", "5L"}, device_class=SensorDeviceClass.ENUM, options=["low", "normal"], icon="mdi:flash", ), DSMRSensorEntityDescription( key="electricity_used_tariff_1", translation_key="electricity_used_tariff_1", obis_reference=obis_references.ELECTRICITY_USED_TARIFF_1, dsmr_versions={"2.2", "4", "5", "5B", "5L"}, device_class=SensorDeviceClass.ENERGY, state_class=SensorStateClass.TOTAL_INCREASING, ), DSMRSensorEntityDescription( key="electricity_used_tariff_2", translation_key="electricity_used_tariff_2", obis_reference=obis_references.ELECTRICITY_USED_TARIFF_2, dsmr_versions={"2.2", "4", "5", "5B", "5L"}, device_class=SensorDeviceClass.ENERGY, state_class=SensorStateClass.TOTAL_INCREASING, ), DSMRSensorEntityDescription( key="electricity_delivered_tariff_1", translation_key="electricity_delivered_tariff_1", obis_reference=obis_references.ELECTRICITY_DELIVERED_TARIFF_1, dsmr_versions={"2.2", "4", "5", "5B", "5L"}, device_class=SensorDeviceClass.ENERGY, state_class=SensorStateClass.TOTAL_INCREASING, ), DSMRSensorEntityDescription( key="electricity_delivered_tariff_2", translation_key="electricity_delivered_tariff_2", obis_reference=obis_references.ELECTRICITY_DELIVERED_TARIFF_2, dsmr_versions={"2.2", "4", "5", "5B", "5L"}, device_class=SensorDeviceClass.ENERGY, state_class=SensorStateClass.TOTAL_INCREASING, ), DSMRSensorEntityDescription( key="instantaneous_active_power_l1_positive", translation_key="instantaneous_active_power_l1_positive", obis_reference=obis_references.INSTANTANEOUS_ACTIVE_POWER_L1_POSITIVE, device_class=SensorDeviceClass.POWER, entity_registry_enabled_default=False, state_class=SensorStateClass.MEASUREMENT, ), DSMRSensorEntityDescription( key="instantaneous_active_power_l2_positive", translation_key="instantaneous_active_power_l2_positive", obis_reference=obis_references.INSTANTANEOUS_ACTIVE_POWER_L2_POSITIVE, device_class=SensorDeviceClass.POWER, entity_registry_enabled_default=False, state_class=SensorStateClass.MEASUREMENT, ), DSMRSensorEntityDescription( key="instantaneous_active_power_l3_positive", translation_key="instantaneous_active_power_l3_positive", obis_reference=obis_references.INSTANTANEOUS_ACTIVE_POWER_L3_POSITIVE, device_class=SensorDeviceClass.POWER, entity_registry_enabled_default=False, state_class=SensorStateClass.MEASUREMENT, ), DSMRSensorEntityDescription( key="instantaneous_active_power_l1_negative", translation_key="instantaneous_active_power_l1_negative", obis_reference=obis_references.INSTANTANEOUS_ACTIVE_POWER_L1_NEGATIVE, device_class=SensorDeviceClass.POWER, entity_registry_enabled_default=False, state_class=SensorStateClass.MEASUREMENT, ), DSMRSensorEntityDescription( key="instantaneous_active_power_l2_negative", translation_key="instantaneous_active_power_l2_negative", obis_reference=obis_references.INSTANTANEOUS_ACTIVE_POWER_L2_NEGATIVE, device_class=SensorDeviceClass.POWER, entity_registry_enabled_default=False, state_class=SensorStateClass.MEASUREMENT, ), DSMRSensorEntityDescription( key="instantaneous_active_power_l3_negative", translation_key="instantaneous_active_power_l3_negative", obis_reference=obis_references.INSTANTANEOUS_ACTIVE_POWER_L3_NEGATIVE, device_class=SensorDeviceClass.POWER, entity_registry_enabled_default=False, state_class=SensorStateClass.MEASUREMENT, ), DSMRSensorEntityDescription( key="short_power_failure_count", translation_key="short_power_failure_count", obis_reference=obis_references.SHORT_POWER_FAILURE_COUNT, dsmr_versions={"2.2", "4", "5", "5L"}, entity_registry_enabled_default=False, icon="mdi:flash-off", entity_category=EntityCategory.DIAGNOSTIC, ), DSMRSensorEntityDescription( key="long_power_failure_count", translation_key="long_power_failure_count", obis_reference=obis_references.LONG_POWER_FAILURE_COUNT, dsmr_versions={"2.2", "4", "5", "5L"}, entity_registry_enabled_default=False, icon="mdi:flash-off", entity_category=EntityCategory.DIAGNOSTIC, ), DSMRSensorEntityDescription( key="voltage_sag_l1_count", translation_key="voltage_sag_l1_count", obis_reference=obis_references.VOLTAGE_SAG_L1_COUNT, dsmr_versions={"2.2", "4", "5", "5L"}, entity_registry_enabled_default=False, entity_category=EntityCategory.DIAGNOSTIC, ), DSMRSensorEntityDescription( key="voltage_sag_l2_count", translation_key="voltage_sag_l2_count", obis_reference=obis_references.VOLTAGE_SAG_L2_COUNT, dsmr_versions={"2.2", "4", "5", "5L"}, entity_registry_enabled_default=False, entity_category=EntityCategory.DIAGNOSTIC, ), DSMRSensorEntityDescription( key="voltage_sag_l3_count", translation_key="voltage_sag_l3_count", obis_reference=obis_references.VOLTAGE_SAG_L3_COUNT, dsmr_versions={"2.2", "4", "5", "5L"}, entity_registry_enabled_default=False, entity_category=EntityCategory.DIAGNOSTIC, ), DSMRSensorEntityDescription( key="voltage_swell_l1_count", translation_key="voltage_swell_l1_count", obis_reference=obis_references.VOLTAGE_SWELL_L1_COUNT, dsmr_versions={"2.2", "4", "5", "5L"}, entity_registry_enabled_default=False, icon="mdi:pulse", entity_category=EntityCategory.DIAGNOSTIC, ), DSMRSensorEntityDescription( key="voltage_swell_l2_count", translation_key="voltage_swell_l2_count", obis_reference=obis_references.VOLTAGE_SWELL_L2_COUNT, dsmr_versions={"2.2", "4", "5", "5L"}, entity_registry_enabled_default=False, icon="mdi:pulse", entity_category=EntityCategory.DIAGNOSTIC, ), DSMRSensorEntityDescription( key="voltage_swell_l3_count", translation_key="voltage_swell_l3_count", obis_reference=obis_references.VOLTAGE_SWELL_L3_COUNT, dsmr_versions={"2.2", "4", "5", "5L"}, entity_registry_enabled_default=False, icon="mdi:pulse", entity_category=EntityCategory.DIAGNOSTIC, ), DSMRSensorEntityDescription( key="instantaneous_voltage_l1", translation_key="instantaneous_voltage_l1", obis_reference=obis_references.INSTANTANEOUS_VOLTAGE_L1, device_class=SensorDeviceClass.VOLTAGE, entity_registry_enabled_default=False, state_class=SensorStateClass.MEASUREMENT, entity_category=EntityCategory.DIAGNOSTIC, ), DSMRSensorEntityDescription( key="instantaneous_voltage_l2", translation_key="instantaneous_voltage_l2", obis_reference=obis_references.INSTANTANEOUS_VOLTAGE_L2, device_class=SensorDeviceClass.VOLTAGE, entity_registry_enabled_default=False, state_class=SensorStateClass.MEASUREMENT, entity_category=EntityCategory.DIAGNOSTIC, ), DSMRSensorEntityDescription( key="instantaneous_voltage_l3", translation_key="instantaneous_voltage_l3", obis_reference=obis_references.INSTANTANEOUS_VOLTAGE_L3, device_class=SensorDeviceClass.VOLTAGE, entity_registry_enabled_default=False, state_class=SensorStateClass.MEASUREMENT, entity_category=EntityCategory.DIAGNOSTIC, ), DSMRSensorEntityDescription( key="instantaneous_current_l1", translation_key="instantaneous_current_l1", obis_reference=obis_references.INSTANTANEOUS_CURRENT_L1, device_class=SensorDeviceClass.CURRENT, entity_registry_enabled_default=False, state_class=SensorStateClass.MEASUREMENT, entity_category=EntityCategory.DIAGNOSTIC, ), DSMRSensorEntityDescription( key="instantaneous_current_l2", translation_key="instantaneous_current_l2", obis_reference=obis_references.INSTANTANEOUS_CURRENT_L2, device_class=SensorDeviceClass.CURRENT, entity_registry_enabled_default=False, state_class=SensorStateClass.MEASUREMENT, entity_category=EntityCategory.DIAGNOSTIC, ), DSMRSensorEntityDescription( key="instantaneous_current_l3", translation_key="instantaneous_current_l3", obis_reference=obis_references.INSTANTANEOUS_CURRENT_L3, device_class=SensorDeviceClass.CURRENT, entity_registry_enabled_default=False, state_class=SensorStateClass.MEASUREMENT, entity_category=EntityCategory.DIAGNOSTIC, ), DSMRSensorEntityDescription( key="belgium_max_power_per_phase", translation_key="max_power_per_phase", obis_reference=obis_references.BELGIUM_MAX_POWER_PER_PHASE, dsmr_versions={"5B"}, device_class=SensorDeviceClass.POWER, entity_registry_enabled_default=False, state_class=SensorStateClass.MEASUREMENT, entity_category=EntityCategory.DIAGNOSTIC, ), DSMRSensorEntityDescription( key="belgium_max_current_per_phase", translation_key="max_current_per_phase", obis_reference=obis_references.BELGIUM_MAX_CURRENT_PER_PHASE, dsmr_versions={"5B"}, device_class=SensorDeviceClass.CURRENT, entity_registry_enabled_default=False, state_class=SensorStateClass.MEASUREMENT, entity_category=EntityCategory.DIAGNOSTIC, ), DSMRSensorEntityDescription( key="electricity_imported_total", translation_key="electricity_imported_total", obis_reference=obis_references.ELECTRICITY_IMPORTED_TOTAL, dsmr_versions={"5L", "5S", "Q3D"}, device_class=SensorDeviceClass.ENERGY, state_class=SensorStateClass.TOTAL_INCREASING, ), DSMRSensorEntityDescription( key="electricity_exported_total", translation_key="electricity_exported_total", obis_reference=obis_references.ELECTRICITY_EXPORTED_TOTAL, dsmr_versions={"5L", "5S", "Q3D"}, device_class=SensorDeviceClass.ENERGY, state_class=SensorStateClass.TOTAL_INCREASING, ), DSMRSensorEntityDescription( key="belgium_current_average_demand", translation_key="current_average_demand", obis_reference=obis_references.BELGIUM_CURRENT_AVERAGE_DEMAND, dsmr_versions={"5B"}, device_class=SensorDeviceClass.POWER, ), DSMRSensorEntityDescription( key="belgium_maximum_demand_current_month", translation_key="maximum_demand_current_month", obis_reference=obis_references.BELGIUM_MAXIMUM_DEMAND_MONTH, dsmr_versions={"5B"}, device_class=SensorDeviceClass.POWER, ), DSMRSensorEntityDescription( key="hourly_gas_meter_reading", translation_key="gas_meter_reading", obis_reference=obis_references.HOURLY_GAS_METER_READING, dsmr_versions={"4", "5", "5L"}, is_gas=True, device_class=SensorDeviceClass.GAS, state_class=SensorStateClass.TOTAL_INCREASING, ), DSMRSensorEntityDescription( key="gas_meter_reading", translation_key="gas_meter_reading", obis_reference=obis_references.GAS_METER_READING, dsmr_versions={"2.2"}, is_gas=True, device_class=SensorDeviceClass.GAS, state_class=SensorStateClass.TOTAL_INCREASING, ), ) def create_mbus_entity( mbus: int, mtype: int, telegram: dict[str, DSMRObject] ) -> DSMRSensorEntityDescription | None: """Create a new MBUS Entity.""" if ( mtype == 3 and ( obis_reference := getattr( obis_references, f"BELGIUM_MBUS{mbus}_METER_READING2" ) ) in telegram ): return DSMRSensorEntityDescription( key=f"mbus{mbus}_gas_reading", translation_key="gas_meter_reading", obis_reference=obis_reference, is_gas=True, device_class=SensorDeviceClass.GAS, state_class=SensorStateClass.TOTAL_INCREASING, ) if ( mtype == 7 and ( obis_reference := getattr( obis_references, f"BELGIUM_MBUS{mbus}_METER_READING1" ) ) in telegram ): return DSMRSensorEntityDescription( key=f"mbus{mbus}_water_reading", translation_key="water_meter_reading", obis_reference=obis_reference, is_water=True, device_class=SensorDeviceClass.WATER, state_class=SensorStateClass.TOTAL_INCREASING, ) return None def device_class_and_uom( telegram: dict[str, DSMRObject], entity_description: DSMRSensorEntityDescription, ) -> tuple[SensorDeviceClass | None, str | None]: """Get native unit of measurement from telegram,.""" dsmr_object = telegram[entity_description.obis_reference] uom: str | None = getattr(dsmr_object, "unit") or None with suppress(ValueError): if entity_description.device_class == SensorDeviceClass.GAS and ( enery_uom := UnitOfEnergy(str(uom)) ): return (SensorDeviceClass.ENERGY, enery_uom) if uom in UNIT_CONVERSION: return (entity_description.device_class, UNIT_CONVERSION[uom]) return (entity_description.device_class, uom) def rename_old_gas_to_mbus( hass: HomeAssistant, entry: ConfigEntry, mbus_device_id: str ) -> None: """Rename old gas sensor to mbus variant.""" dev_reg = dr.async_get(hass) device_entry_v1 = dev_reg.async_get_device(identifiers={(DOMAIN, entry.entry_id)}) if device_entry_v1 is not None: device_id = device_entry_v1.id ent_reg = er.async_get(hass) entries = er.async_entries_for_device(ent_reg, device_id) for entity in entries: if entity.unique_id.endswith("belgium_5min_gas_meter_reading"): try: ent_reg.async_update_entity( entity.entity_id, new_unique_id=mbus_device_id, device_id=mbus_device_id, ) except ValueError: LOGGER.debug( "Skip migration of %s because it already exists", entity.entity_id, ) else: LOGGER.debug( "Migrated entity %s from unique id %s to %s", entity.entity_id, entity.unique_id, mbus_device_id, ) # Cleanup old device dev_entities = er.async_entries_for_device( ent_reg, device_id, include_disabled_entities=True ) if not dev_entities: dev_reg.async_remove_device(device_id) def create_mbus_entities( hass: HomeAssistant, telegram: dict[str, DSMRObject], entry: ConfigEntry ) -> list[DSMREntity]: """Create MBUS Entities.""" entities = [] for idx in range(1, 5): if ( device_type := getattr(obis_references, f"BELGIUM_MBUS{idx}_DEVICE_TYPE") ) not in telegram: continue if (type_ := int(telegram[device_type].value)) not in (3, 7): continue if ( identifier := getattr( obis_references, f"BELGIUM_MBUS{idx}_EQUIPMENT_IDENTIFIER", ) ) in telegram: serial_ = telegram[identifier].value rename_old_gas_to_mbus(hass, entry, serial_) else: serial_ = "" if description := create_mbus_entity(idx, type_, telegram): entities.append( DSMREntity( description, entry, telegram, *device_class_and_uom(telegram, description), # type: ignore[arg-type] serial_, idx, ) ) return entities async def async_setup_entry( hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback ) -> None: """Set up the DSMR sensor.""" dsmr_version = entry.data[CONF_DSMR_VERSION] entities: list[DSMREntity] = [] initialized: bool = False add_entities_handler: Callable[..., None] | None @callback def init_async_add_entities(telegram: dict[str, DSMRObject]) -> None: """Add the sensor entities after the first telegram was received.""" nonlocal add_entities_handler assert add_entities_handler is not None add_entities_handler() add_entities_handler = None if dsmr_version == "5B": mbus_entities = create_mbus_entities(hass, telegram, entry) for mbus_entity in mbus_entities: entities.append(mbus_entity) entities.extend( [ DSMREntity( description, entry, telegram, *device_class_and_uom(telegram, description), # type: ignore[arg-type] ) for description in SENSORS if ( description.dsmr_versions is None or dsmr_version in description.dsmr_versions ) and (not description.is_gas or CONF_SERIAL_ID_GAS in entry.data) and description.obis_reference in telegram ] ) async_add_entities(entities) add_entities_handler = async_dispatcher_connect( hass, EVENT_FIRST_TELEGRAM.format(entry.entry_id), init_async_add_entities ) min_time_between_updates = timedelta( seconds=entry.options.get(CONF_TIME_BETWEEN_UPDATE, DEFAULT_TIME_BETWEEN_UPDATE) ) @Throttle(min_time_between_updates) def update_entities_telegram(telegram: dict[str, DSMRObject] | None) -> None: """Update entities with latest telegram and trigger state update.""" nonlocal initialized # Make all device entities aware of new telegram for entity in entities: entity.update_data(telegram) if not initialized and telegram: initialized = True async_dispatcher_send( hass, EVENT_FIRST_TELEGRAM.format(entry.entry_id), telegram ) # Creates an asyncio.Protocol factory for reading DSMR telegrams from # serial and calls update_entities_telegram to update entities on arrival protocol = entry.data.get(CONF_PROTOCOL, DSMR_PROTOCOL) if CONF_HOST in entry.data: if protocol == DSMR_PROTOCOL: create_reader = create_tcp_dsmr_reader else: create_reader = create_rfxtrx_tcp_dsmr_reader reader_factory = partial( create_reader, entry.data[CONF_HOST], entry.data[CONF_PORT], dsmr_version, update_entities_telegram, loop=hass.loop, keep_alive_interval=60, ) else: if protocol == DSMR_PROTOCOL: create_reader = create_dsmr_reader else: create_reader = create_rfxtrx_dsmr_reader reader_factory = partial( create_reader, entry.data[CONF_PORT], dsmr_version, update_entities_telegram, loop=hass.loop, ) async def connect_and_reconnect() -> None: """Connect to DSMR and keep reconnecting until Home Assistant stops.""" stop_listener = None transport = None protocol = None while hass.state == CoreState.not_running or hass.is_running: # Start DSMR asyncio.Protocol reader # Reflect connected state in devices state by setting an # empty telegram resulting in `unknown` states update_entities_telegram({}) try: transport, protocol = await hass.loop.create_task(reader_factory()) if transport: # Register listener to close transport on HA shutdown @callback def close_transport(_event: Event) -> None: """Close the transport on HA shutdown.""" if not transport: # noqa: B023 return transport.close() # noqa: B023 stop_listener = hass.bus.async_listen_once( EVENT_HOMEASSISTANT_STOP, close_transport ) # Wait for reader to close await protocol.wait_closed() # Unexpected disconnect if hass.state == CoreState.not_running or hass.is_running: stop_listener() transport = None protocol = None # Reflect disconnect state in devices state by setting an # None telegram resulting in `unavailable` states update_entities_telegram(None) # throttle reconnect attempts await asyncio.sleep(DEFAULT_RECONNECT_INTERVAL) except (serial.SerialException, OSError): # Log any error while establishing connection and drop to retry # connection wait LOGGER.exception("Error connecting to DSMR") transport = None protocol = None # Reflect disconnect state in devices state by setting an # None telegram resulting in `unavailable` states update_entities_telegram(None) # throttle reconnect attempts await asyncio.sleep(DEFAULT_RECONNECT_INTERVAL) except CancelledError: # Reflect disconnect state in devices state by setting an # None telegram resulting in `unavailable` states update_entities_telegram(None) if stop_listener and ( hass.state == CoreState.not_running or hass.is_running ): stop_listener() if transport: transport.close() if protocol: await protocol.wait_closed() return # Can't be hass.async_add_job because job runs forever task = asyncio.create_task(connect_and_reconnect()) @callback async def _async_stop(_: Event) -> None: if add_entities_handler is not None: add_entities_handler() task.cancel() # Make sure task is cancelled on shutdown (or tests complete) entry.async_on_unload( hass.bus.async_listen_once(EVENT_HOMEASSISTANT_STOP, _async_stop) ) # Save the task to be able to cancel it when unloading hass.data[DOMAIN][entry.entry_id][DATA_TASK] = task class DSMREntity(SensorEntity): """Entity reading values from DSMR telegram.""" entity_description: DSMRSensorEntityDescription _attr_has_entity_name = True _attr_should_poll = False def __init__( self, entity_description: DSMRSensorEntityDescription, entry: ConfigEntry, telegram: dict[str, DSMRObject], device_class: SensorDeviceClass, native_unit_of_measurement: str | None, serial_id: str = "", mbus_id: int = 0, ) -> None: """Initialize entity.""" self.entity_description = entity_description self._attr_device_class = device_class self._attr_native_unit_of_measurement = native_unit_of_measurement self._entry = entry self.telegram: dict[str, DSMRObject] | None = telegram device_serial = entry.data[CONF_SERIAL_ID] device_name = DEVICE_NAME_ELECTRICITY if entity_description.is_gas: if serial_id: device_serial = serial_id else: device_serial = entry.data[CONF_SERIAL_ID_GAS] device_name = DEVICE_NAME_GAS if entity_description.is_water: if serial_id: device_serial = serial_id device_name = DEVICE_NAME_WATER if device_serial is None: device_serial = entry.entry_id self._attr_device_info = DeviceInfo( identifiers={(DOMAIN, device_serial)}, name=device_name, ) if mbus_id != 0: if serial_id: self._attr_unique_id = f"{device_serial}" else: self._attr_unique_id = f"{device_serial}_{mbus_id}" else: self._attr_unique_id = f"{device_serial}_{entity_description.key}" @callback def update_data(self, telegram: dict[str, DSMRObject] | None) -> None: """Update data.""" self.telegram = telegram if self.hass and ( telegram is None or self.entity_description.obis_reference in telegram ): self.async_write_ha_state() def get_dsmr_object_attr(self, attribute: str) -> str | None: """Read attribute from last received telegram for this DSMR object.""" # Make sure telegram contains an object for this entities obis if ( self.telegram is None or self.entity_description.obis_reference not in self.telegram ): return None # Get the attribute value if the object has it dsmr_object = self.telegram[self.entity_description.obis_reference] attr: str | None = getattr(dsmr_object, attribute) return attr @property def available(self) -> bool: """Entity is only available if there is a telegram.""" return self.telegram is not None @property def native_value(self) -> StateType: """Return the state of sensor, if available, translate if needed.""" value: StateType if (value := self.get_dsmr_object_attr("value")) is None: return None if ( self.entity_description.obis_reference == obis_references.ELECTRICITY_ACTIVE_TARIFF ): return self.translate_tariff(value, self._entry.data[CONF_DSMR_VERSION]) with suppress(TypeError): value = round(float(value), DEFAULT_PRECISION) # Make sure we do not return a zero value for an energy sensor if not value and self.state_class == SensorStateClass.TOTAL_INCREASING: return None return value @staticmethod def translate_tariff(value: str, dsmr_version: str) -> str | None: """Convert 2/1 to normal/low depending on DSMR version.""" # DSMR V5B: Note: In Belgium values are swapped: # Rate code 2 is used for low rate and rate code 1 is used for normal rate. if dsmr_version == "5B": if value == "0001": value = "0002" elif value == "0002": value = "0001" # DSMR V2.2: Note: Rate code 1 is used for low rate and rate code 2 is # used for normal rate. if value == "0002": return "normal" if value == "0001": return "low" return None