77 lines
2.2 KiB
Python
77 lines
2.2 KiB
Python
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"""Support for SMS dongle sensor."""
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import logging
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import gammu # pylint: disable=import-error, no-member
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from homeassistant.const import DEVICE_CLASS_SIGNAL_STRENGTH
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from homeassistant.helpers.entity import Entity
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from .const import DOMAIN, SMS_GATEWAY
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_LOGGER = logging.getLogger(__name__)
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async def async_setup_entry(hass, config_entry, async_add_entities):
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"""Set up the GSM Signal Sensor sensor."""
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gateway = hass.data[DOMAIN][SMS_GATEWAY]
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entities = []
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imei = await gateway.get_imei_async()
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name = f"gsm_signal_imei_{imei}"
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entities.append(GSMSignalSensor(hass, gateway, name,))
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async_add_entities(entities, True)
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class GSMSignalSensor(Entity):
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"""Implementation of a GSM Signal sensor."""
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def __init__(
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self, hass, gateway, name,
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):
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"""Initialize the GSM Signal sensor."""
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self._hass = hass
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self._gateway = gateway
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self._name = name
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self._state = None
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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 self._name
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@property
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def unit_of_measurement(self):
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"""Return the unit the value is expressed in."""
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return "dB"
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@property
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def device_class(self):
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"""Return the class of this sensor."""
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return DEVICE_CLASS_SIGNAL_STRENGTH
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@property
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def available(self):
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"""Return if the sensor data are available."""
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return self._state is not None
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@property
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def state(self):
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"""Return the state of the device."""
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return self._state["SignalStrength"]
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async def async_update(self):
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"""Get the latest data from the modem."""
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try:
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self._state = await self._gateway.get_signal_quality_async()
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except gammu.GSMError as exc: # pylint: disable=no-member
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_LOGGER.error("Failed to read signal quality: %s", exc)
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@property
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def device_state_attributes(self):
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"""Return the sensor attributes."""
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return self._state
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@property
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def entity_registry_enabled_default(self) -> bool:
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"""Return if the entity should be enabled when first added to the entity registry."""
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return False
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