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core/homeassistant/components/edl21/sensor.py

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"""Support for EDL21 Smart Meters."""
from __future__ import annotations
from collections.abc import Mapping
from datetime import timedelta
from typing import Any
from sml import SmlGetListResponse
from sml.asyncio import SmlProtocol
from homeassistant.components.sensor import (
SensorDeviceClass,
SensorEntity,
SensorEntityDescription,
SensorStateClass,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import (
DEGREE,
UnitOfElectricCurrent,
UnitOfElectricPotential,
UnitOfEnergy,
UnitOfFrequency,
UnitOfPower,
)
from homeassistant.core import HomeAssistant, callback
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.util.dt import utcnow
from .const import (
CONF_SERIAL_PORT,
DEFAULT_DEVICE_NAME,
DOMAIN,
LOGGER,
SIGNAL_EDL21_TELEGRAM,
)
MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=60)
# OBIS format: A-B:C.D.E*F
SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
# A=1: Electricity
# C=0: General purpose objects
# D=0: Free ID-numbers for utilities
# E=0 Ownership ID
SensorEntityDescription(
key="1-0:0.0.0*255",
translation_key="ownership_id",
entity_registry_enabled_default=False,
),
# E=9: Electrity ID
SensorEntityDescription(
key="1-0:0.0.9*255",
translation_key="electricity_id",
),
# D=2: Program entries
SensorEntityDescription(
key="1-0:0.2.0*0",
translation_key="configuration_program_version_number",
),
SensorEntityDescription(
key="1-0:0.2.0*1",
translation_key="firmware_version_number",
),
# C=1: Active power +
# D=7: Current value
# E=0: Total
SensorEntityDescription(
key="1-0:1.7.0*255",
translation_key="positive_active_instantaneous_power",
state_class=SensorStateClass.MEASUREMENT,
device_class=SensorDeviceClass.POWER,
),
# C=1: Active energy +
# D=8: Time integral 1
# E=0: Total
SensorEntityDescription(
key="1-0:1.8.0*255",
translation_key="positive_active_energy_total",
state_class=SensorStateClass.TOTAL_INCREASING,
device_class=SensorDeviceClass.ENERGY,
),
# E=1: Rate 1
SensorEntityDescription(
key="1-0:1.8.1*255",
translation_key="positive_active_energy_tariff_t1",
state_class=SensorStateClass.TOTAL_INCREASING,
device_class=SensorDeviceClass.ENERGY,
),
# E=2: Rate 2
SensorEntityDescription(
key="1-0:1.8.2*255",
translation_key="positive_active_energy_tariff_t2",
state_class=SensorStateClass.TOTAL_INCREASING,
device_class=SensorDeviceClass.ENERGY,
),
# D=17: Time integral 7
# E=0: Total
SensorEntityDescription(
key="1-0:1.17.0*255",
translation_key="last_signed_positive_active_energy_total",
),
# C=2: Active energy -
# D=8: Time integral 1
# E=0: Total
SensorEntityDescription(
key="1-0:2.8.0*255",
translation_key="negative_active_energy_total",
state_class=SensorStateClass.TOTAL_INCREASING,
device_class=SensorDeviceClass.ENERGY,
),
# E=1: Rate 1
SensorEntityDescription(
key="1-0:2.8.1*255",
translation_key="negative_active_energy_tariff_t1",
state_class=SensorStateClass.TOTAL_INCREASING,
device_class=SensorDeviceClass.ENERGY,
),
# E=2: Rate 2
SensorEntityDescription(
key="1-0:2.8.2*255",
translation_key="negative_active_energy_tariff_t2",
state_class=SensorStateClass.TOTAL_INCREASING,
device_class=SensorDeviceClass.ENERGY,
),
# C=14: Supply frequency
# D=7: Instantaneous value
# E=0: Total
SensorEntityDescription(
key="1-0:14.7.0*255",
translation_key="supply_frequency",
),
# C=15: Active power absolute
# D=7: Instantaneous value
# E=0: Total
SensorEntityDescription(
key="1-0:15.7.0*255",
translation_key="absolute_active_instantaneous_power",
state_class=SensorStateClass.MEASUREMENT,
device_class=SensorDeviceClass.POWER,
),
# C=16: Active power sum
# D=7: Instantaneous value
# E=0: Total
SensorEntityDescription(
key="1-0:16.7.0*255",
translation_key="sum_active_instantaneous_power",
state_class=SensorStateClass.MEASUREMENT,
device_class=SensorDeviceClass.POWER,
),
# C=31: Active amperage L1
# D=7: Instantaneous value
# E=0: Total
SensorEntityDescription(
key="1-0:31.7.0*255",
translation_key="l1_active_instantaneous_amperage",
state_class=SensorStateClass.MEASUREMENT,
device_class=SensorDeviceClass.CURRENT,
),
# C=32: Active voltage L1
# D=7: Instantaneous value
# E=0: Total
SensorEntityDescription(
key="1-0:32.7.0*255",
translation_key="l1_active_instantaneous_voltage",
state_class=SensorStateClass.MEASUREMENT,
device_class=SensorDeviceClass.VOLTAGE,
),
# C=36: Active power L1
# D=7: Instantaneous value
# E=0: Total
SensorEntityDescription(
key="1-0:36.7.0*255",
translation_key="l1_active_instantaneous_power",
state_class=SensorStateClass.MEASUREMENT,
device_class=SensorDeviceClass.POWER,
),
# C=51: Active amperage L2
# D=7: Instantaneous value
# E=0: Total
SensorEntityDescription(
key="1-0:51.7.0*255",
translation_key="l2_active_instantaneous_amperage",
state_class=SensorStateClass.MEASUREMENT,
device_class=SensorDeviceClass.CURRENT,
),
# C=52: Active voltage L2
# D=7: Instantaneous value
# E=0: Total
SensorEntityDescription(
key="1-0:52.7.0*255",
translation_key="l2_active_instantaneous_voltage",
state_class=SensorStateClass.MEASUREMENT,
device_class=SensorDeviceClass.VOLTAGE,
),
# C=56: Active power L2
# D=7: Instantaneous value
# E=0: Total
SensorEntityDescription(
key="1-0:56.7.0*255",
translation_key="l2_active_instantaneous_power",
state_class=SensorStateClass.MEASUREMENT,
device_class=SensorDeviceClass.POWER,
),
# C=71: Active amperage L3
# D=7: Instantaneous value
# E=0: Total
SensorEntityDescription(
key="1-0:71.7.0*255",
translation_key="l3_active_instantaneous_amperage",
state_class=SensorStateClass.MEASUREMENT,
device_class=SensorDeviceClass.CURRENT,
),
# C=72: Active voltage L3
# D=7: Instantaneous value
# E=0: Total
SensorEntityDescription(
key="1-0:72.7.0*255",
translation_key="l3_active_instantaneous_voltage",
state_class=SensorStateClass.MEASUREMENT,
device_class=SensorDeviceClass.VOLTAGE,
),
# C=76: Active power L3
# D=7: Instantaneous value
# E=0: Total
SensorEntityDescription(
key="1-0:76.7.0*255",
translation_key="l3_active_instantaneous_power",
state_class=SensorStateClass.MEASUREMENT,
device_class=SensorDeviceClass.POWER,
),
# C=81: Angles
# D=7: Instantaneous value
# E=1: U(L2) x U(L1)
# E=2: U(L3) x U(L1)
# E=4: U(L1) x I(L1)
# E=15: U(L2) x I(L2)
# E=26: U(L3) x I(L3)
SensorEntityDescription(
key="1-0:81.7.1*255",
translation_key="u_l2_u_l1_phase_angle",
),
SensorEntityDescription(
key="1-0:81.7.2*255",
translation_key="u_l3_u_l1_phase_angle",
),
SensorEntityDescription(
key="1-0:81.7.4*255",
translation_key="u_l1_i_l1_phase_angle",
),
SensorEntityDescription(
key="1-0:81.7.15*255",
translation_key="u_l2_i_l2_phase_angle",
),
SensorEntityDescription(
key="1-0:81.7.26*255",
translation_key="u_l3_i_l3_phase_angle",
),
# C=96: Electricity-related service entries
SensorEntityDescription(
key="1-0:96.1.0*255",
translation_key="metering_point_id_1",
),
SensorEntityDescription(
key="1-0:96.5.0*255",
translation_key="internal_operating_status",
),
)
SENSORS = {desc.key: desc for desc in SENSOR_TYPES}
SENSOR_UNIT_MAPPING = {
"Wh": UnitOfEnergy.WATT_HOUR,
"kWh": UnitOfEnergy.KILO_WATT_HOUR,
"W": UnitOfPower.WATT,
"A": UnitOfElectricCurrent.AMPERE,
"V": UnitOfElectricPotential.VOLT,
"°": DEGREE,
"Hz": UnitOfFrequency.HERTZ,
}
async def async_setup_entry(
hass: HomeAssistant,
config_entry: ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Set up the EDL21 sensor."""
hass.data[DOMAIN] = EDL21(hass, config_entry.data, async_add_entities)
await hass.data[DOMAIN].connect()
class EDL21:
"""EDL21 handles telegrams sent by a compatible smart meter."""
_OBIS_BLACKLIST = {
# C=96: Electricity-related service entries
"1-0:96.50.1*1", # Manufacturer specific EFR SGM-C4 Hardware version
"1-0:96.50.1*4", # Manufacturer specific EFR SGM-C4 Hardware version
"1-0:96.50.4*4", # Manufacturer specific EFR SGM-C4 Parameters version
"1-0:96.90.2*1", # Manufacturer specific EFR SGM-C4 Firmware Checksum
"1-0:96.90.2*2", # Manufacturer specific EFR SGM-C4 Firmware Checksum
# C=97: Electricity-related service entries
"1-0:97.97.0*0", # Manufacturer specific EFR SGM-C4 Error register
# A=129: Manufacturer specific
"129-129:199.130.3*255", # Iskraemeco: Manufacturer
"129-129:199.130.5*255", # Iskraemeco: Public Key
}
def __init__(
self,
hass: HomeAssistant,
config: Mapping[str, Any],
async_add_entities: AddEntitiesCallback,
) -> None:
"""Initialize an EDL21 object."""
self._registered_obis: set[tuple[str, str]] = set()
self._hass = hass
self._async_add_entities = async_add_entities
self._serial_port = config[CONF_SERIAL_PORT]
self._proto = SmlProtocol(config[CONF_SERIAL_PORT])
self._proto.add_listener(self.event, ["SmlGetListResponse"])
LOGGER.debug(
"Initialized EDL21 on %s",
config[CONF_SERIAL_PORT],
)
async def connect(self) -> None:
"""Connect to an EDL21 reader."""
await self._proto.connect(self._hass.loop)
def event(self, message_body) -> None:
"""Handle events from pysml."""
assert isinstance(message_body, SmlGetListResponse)
LOGGER.debug("Received sml message on %s: %s", self._serial_port, message_body)
electricity_id = message_body["serverId"]
if electricity_id is None:
LOGGER.debug(
"No electricity id found in sml message on %s", self._serial_port
)
return
electricity_id = electricity_id.replace(" ", "")
new_entities: list[EDL21Entity] = []
for telegram in message_body.get("valList", []):
if not (obis := telegram.get("objName")):
continue
if (electricity_id, obis) in self._registered_obis:
async_dispatcher_send(
self._hass, SIGNAL_EDL21_TELEGRAM, electricity_id, telegram
)
else:
entity_description = SENSORS.get(obis)
if entity_description:
new_entities.append(
EDL21Entity(
electricity_id,
obis,
entity_description,
telegram,
)
)
self._registered_obis.add((electricity_id, obis))
elif obis not in self._OBIS_BLACKLIST:
LOGGER.warning(
"Unhandled sensor %s detected. Please report at %s",
obis,
"https://github.com/home-assistant/core/issues?q=is%3Aopen+is%3Aissue+label%3A%22integration%3A+edl21%22",
)
self._OBIS_BLACKLIST.add(obis)
if new_entities:
self._async_add_entities(new_entities, update_before_add=True)
class EDL21Entity(SensorEntity):
"""Entity reading values from EDL21 telegram."""
_attr_should_poll = False
_attr_has_entity_name = True
def __init__(self, electricity_id, obis, entity_description, telegram):
"""Initialize an EDL21Entity."""
self._electricity_id = electricity_id
self._obis = obis
self._telegram = telegram
self._min_time = MIN_TIME_BETWEEN_UPDATES
self._last_update = utcnow()
self._async_remove_dispatcher = None
self.entity_description = entity_description
self._attr_unique_id = f"{electricity_id}_{obis}"
self._attr_device_info = DeviceInfo(
identifiers={(DOMAIN, self._electricity_id)},
name=DEFAULT_DEVICE_NAME,
)
async def async_added_to_hass(self) -> None:
"""Run when entity about to be added to hass."""
@callback
def handle_telegram(electricity_id, telegram):
"""Update attributes from last received telegram for this object."""
if self._electricity_id != electricity_id:
return
if self._obis != telegram.get("objName"):
return
if self._telegram == telegram:
return
now = utcnow()
if now - self._last_update < self._min_time:
return
self._telegram = telegram
self._last_update = now
self.async_write_ha_state()
self._async_remove_dispatcher = async_dispatcher_connect(
self.hass, SIGNAL_EDL21_TELEGRAM, handle_telegram
)
async def async_will_remove_from_hass(self) -> None:
"""Run when entity will be removed from hass."""
if self._async_remove_dispatcher:
self._async_remove_dispatcher()
@property
def native_value(self) -> str:
"""Return the value of the last received telegram."""
return self._telegram.get("value")
@property
def native_unit_of_measurement(self) -> str | None:
"""Return the unit of measurement."""
if (unit := self._telegram.get("unit")) is None or unit == 0:
return None
return SENSOR_UNIT_MAPPING[unit]
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