mirror of
https://github.com/home-assistant/core
synced 2024-08-31 05:57:13 +02:00
90 lines
2.3 KiB
Python
90 lines
2.3 KiB
Python
"""Platform for sensor integration."""
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from datetime import timedelta
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import logging
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from oru import Meter, MeterError
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import voluptuous as vol
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from homeassistant.components.sensor import PLATFORM_SCHEMA, SensorEntity
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from homeassistant.const import ENERGY_KILO_WATT_HOUR
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import homeassistant.helpers.config_validation as cv
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_LOGGER = logging.getLogger(__name__)
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CONF_METER_NUMBER = "meter_number"
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SCAN_INTERVAL = timedelta(minutes=15)
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SENSOR_NAME = "ORU Current Energy Usage"
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SENSOR_ICON = "mdi:counter"
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({vol.Required(CONF_METER_NUMBER): cv.string})
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def setup_platform(hass, config, add_entities, discovery_info=None):
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"""Set up the sensor platform."""
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meter_number = config[CONF_METER_NUMBER]
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try:
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meter = Meter(meter_number)
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except MeterError:
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_LOGGER.error("Unable to create Oru meter")
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return
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add_entities([CurrentEnergyUsageSensor(meter)], True)
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_LOGGER.debug("Oru meter_number = %s", meter_number)
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class CurrentEnergyUsageSensor(SensorEntity):
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"""Representation of the sensor."""
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def __init__(self, meter):
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"""Initialize the sensor."""
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self._state = None
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self._available = None
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self.meter = meter
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@property
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def unique_id(self):
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"""Return a unique, Home Assistant friendly identifier for this entity."""
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return self.meter.meter_id
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@property
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def name(self):
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"""Return the name of the sensor."""
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return SENSOR_NAME
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@property
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def icon(self):
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"""Return the icon of the sensor."""
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return SENSOR_ICON
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@property
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def state(self):
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"""Return the state of the sensor."""
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return self._state
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@property
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def unit_of_measurement(self):
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"""Return the unit of measurement."""
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return ENERGY_KILO_WATT_HOUR
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def update(self):
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"""Fetch new state data for the sensor."""
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try:
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last_read = self.meter.last_read()
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self._state = last_read
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self._available = True
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_LOGGER.debug(
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"%s = %s %s", self.name, self._state, self.unit_of_measurement
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)
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except MeterError as err:
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self._available = False
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_LOGGER.error("Unexpected oru meter error: %s", err)
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