73 lines
2.0 KiB
Python
73 lines
2.0 KiB
Python
"""
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Support for showing random numbers.
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For more details about this platform, please refer to the documentation at
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https://home-assistant.io/components/sensor.random/
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"""
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import asyncio
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import logging
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import voluptuous as vol
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import homeassistant.helpers.config_validation as cv
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from homeassistant.components.sensor import PLATFORM_SCHEMA
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from homeassistant.const import (CONF_NAME, CONF_MINIMUM, CONF_MAXIMUM)
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from homeassistant.helpers.entity import Entity
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_LOGGER = logging.getLogger(__name__)
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DEFAULT_NAME = 'Random Sensor'
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DEFAULT_MIN = 0
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DEFAULT_MAX = 20
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ICON = 'mdi:hanger'
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Optional(CONF_MAXIMUM, default=DEFAULT_MAX): cv.positive_int,
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vol.Optional(CONF_MINIMUM, default=DEFAULT_MIN): cv.positive_int,
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vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
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})
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@asyncio.coroutine
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def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
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"""Setup the Random number sensor."""
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name = config.get(CONF_NAME)
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minimum = config.get(CONF_MINIMUM)
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maximum = config.get(CONF_MAXIMUM)
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yield from async_add_devices([RandomSensor(name, minimum, maximum)], True)
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return True
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class RandomSensor(Entity):
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"""Representation of a Random number sensor."""
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def __init__(self, name, minimum, maximum):
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"""Initialize the sensor."""
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self._name = name
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self._minimum = minimum
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self._maximum = maximum
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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 device."""
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return self._name
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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
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@property
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def icon(self):
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"""Icon to use in the frontend, if any."""
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return ICON
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@asyncio.coroutine
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def async_update(self):
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"""Get a new number and updates the states."""
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from random import randrange
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self._state = randrange(self._minimum, self._maximum + 1)
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