50 lines
1.5 KiB
Python
50 lines
1.5 KiB
Python
"""
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homeassistant.components.sensor.temper
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Support for getting temperature from TEMPer devices
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"""
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import logging
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from homeassistant.helpers.entity import Entity
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_LOGGER = logging.getLogger(__name__)
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# pylint: disable=unused-argument
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def setup_platform(hass, config, add_devices_callback, discovery_info=None):
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""" Find and return Temper sensors. """
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try:
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# pylint: disable=no-name-in-module, import-error
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from temperusb.temper import TemperHandler
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except ImportError:
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_LOGGER.error('Failed to import temperusb')
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return False
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temp_unit = hass.config.temperature_unit
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temper_devices = TemperHandler().get_devices()
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add_devices_callback([TemperSensor(dev, temp_unit) for dev in temper_devices])
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class TemperSensor(Entity):
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def __init__(self, temper_device, temp_unit):
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self.temper_device = temper_device
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self.temp_unit = temp_unit
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self.current_value = None
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@property
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def state(self):
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""" Returns the state of the entity. """
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return self.current_value
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@property
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def unit_of_measurement(self):
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""" Unit of measurement of this entity, if any. """
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return self.temp_unit
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def update(self):
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""" Retrieve latest state. """
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try:
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self.current_value = self.temper_device.get_temperature()
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except Exception:
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_LOGGER.error('Failed to get temperature due to insufficient permissions')
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