126 lines
3.4 KiB
Python
126 lines
3.4 KiB
Python
"""
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Support for Blinkt! lights on Raspberry Pi.
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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/light.blinkt/
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"""
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import importlib
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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.light import (
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ATTR_BRIGHTNESS, SUPPORT_BRIGHTNESS, ATTR_HS_COLOR, SUPPORT_COLOR,
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Light, PLATFORM_SCHEMA)
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from homeassistant.const import CONF_NAME
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import homeassistant.util.color as color_util
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REQUIREMENTS = ['blinkt==0.1.0']
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_LOGGER = logging.getLogger(__name__)
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SUPPORT_BLINKT = (SUPPORT_BRIGHTNESS | SUPPORT_COLOR)
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DEFAULT_NAME = 'blinkt'
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
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})
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def setup_platform(hass, config, add_entities, discovery_info=None):
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"""Set up the Blinkt Light platform."""
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# pylint: disable=no-member
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blinkt = importlib.import_module('blinkt')
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# ensure that the lights are off when exiting
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blinkt.set_clear_on_exit()
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name = config.get(CONF_NAME)
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add_entities([
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BlinktLight(blinkt, name, index) for index in range(blinkt.NUM_PIXELS)
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])
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class BlinktLight(Light):
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"""Representation of a Blinkt! Light."""
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def __init__(self, blinkt, name, index):
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"""Initialize a Blinkt Light.
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Default brightness and white color.
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"""
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self._blinkt = blinkt
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self._name = "{}_{}".format(name, index)
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self._index = index
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self._is_on = False
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self._brightness = 255
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self._hs_color = [0, 0]
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@property
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def name(self):
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"""Return the display name of this light."""
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return self._name
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@property
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def brightness(self):
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"""Read back the brightness of the light.
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Returns integer in the range of 1-255.
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"""
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return self._brightness
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@property
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def hs_color(self):
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"""Read back the color of the light."""
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return self._hs_color
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@property
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def supported_features(self):
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"""Flag supported features."""
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return SUPPORT_BLINKT
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@property
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def is_on(self):
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"""Return true if light is on."""
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return self._is_on
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@property
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def should_poll(self):
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"""Return if we should poll this device."""
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return False
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@property
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def assumed_state(self) -> bool:
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"""Return True if unable to access real state of the entity."""
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return True
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def turn_on(self, **kwargs):
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"""Instruct the light to turn on and set correct brightness & color."""
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if ATTR_HS_COLOR in kwargs:
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self._hs_color = kwargs[ATTR_HS_COLOR]
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if ATTR_BRIGHTNESS in kwargs:
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self._brightness = kwargs[ATTR_BRIGHTNESS]
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percent_bright = (self._brightness / 255)
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rgb_color = color_util.color_hs_to_RGB(*self._hs_color)
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self._blinkt.set_pixel(self._index,
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rgb_color[0],
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rgb_color[1],
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rgb_color[2],
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percent_bright)
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self._blinkt.show()
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self._is_on = True
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self.schedule_update_ha_state()
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def turn_off(self, **kwargs):
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"""Instruct the light to turn off."""
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self._blinkt.set_pixel(self._index, 0, 0, 0, 0)
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self._blinkt.show()
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self._is_on = False
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self.schedule_update_ha_state()
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