101 lines
2.7 KiB
Python
101 lines
2.7 KiB
Python
"""
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Support for Piglow LED's.
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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.piglow/
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"""
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import logging
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import subprocess
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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_RGB_COLOR, SUPPORT_RGB_COLOR,
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Light, PLATFORM_SCHEMA)
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from homeassistant.const import CONF_NAME
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REQUIREMENTS = ['piglow==1.2.4']
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_LOGGER = logging.getLogger(__name__)
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SUPPORT_PIGLOW = (SUPPORT_BRIGHTNESS | SUPPORT_RGB_COLOR)
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DEFAULT_NAME = 'Piglow'
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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_devices, discovery_info=None):
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"""Set up the Piglow Light platform."""
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import piglow
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if subprocess.getoutput("i2cdetect -q -y 1 | grep -o 54") != '54':
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_LOGGER.error("A Piglow device was not found")
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return False
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name = config.get(CONF_NAME)
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add_devices([PiglowLight(piglow, name)])
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class PiglowLight(Light):
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"""Representation of an Piglow Light."""
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def __init__(self, piglow, name):
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"""Initialize an PiglowLight."""
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self._piglow = piglow
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self._name = name
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self._is_on = False
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self._brightness = 255
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self._rgb_color = [255, 255, 255]
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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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"""Brightness of the light (an integer in the range 1-255)."""
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return self._brightness
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@property
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def rgb_color(self):
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"""Read back the color of the light."""
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return self._rgb_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_PIGLOW
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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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def turn_on(self, **kwargs):
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"""Instruct the light to turn on."""
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self._piglow.clear()
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self._brightness = kwargs.get(ATTR_BRIGHTNESS, 255)
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percent_bright = (self._brightness / 255)
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if ATTR_RGB_COLOR in kwargs:
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self._rgb_color = kwargs[ATTR_RGB_COLOR]
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self._piglow.red(int(self._rgb_color[0] * percent_bright))
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self._piglow.green(int(self._rgb_color[1] * percent_bright))
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self._piglow.blue(int(self._rgb_color[2] * percent_bright))
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else:
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self._piglow.all(self._brightness)
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self._piglow.show()
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self._is_on = True
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def turn_off(self, **kwargs):
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"""Instruct the light to turn off."""
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self._piglow.clear()
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self._piglow.show()
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self._is_on = False
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