light.blinkt: add support for Blinkt! lights on Raspberry Pi (#7377)

.coveragerc

@@ -231,6 +231,7 @@ omit =
     homeassistant/components/keyboard.py
     homeassistant/components/keyboard_remote.py
     homeassistant/components/light/avion.py
+    homeassistant/components/light/blinkt.py
     homeassistant/components/light/blinksticklight.py
     homeassistant/components/light/decora.py
     homeassistant/components/light/flux_led.py

homeassistant/components/light/blinkt.py

@@ -0,0 +1,120 @@
+"""
+Support for Blinkt! lights on Raspberry Pi.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/light.blinkt/
+"""
+import logging
+
+import voluptuous as vol
+
+import homeassistant.helpers.config_validation as cv
+from homeassistant.components.light import (
+    ATTR_BRIGHTNESS, SUPPORT_BRIGHTNESS, ATTR_RGB_COLOR, SUPPORT_RGB_COLOR,
+    Light, PLATFORM_SCHEMA)
+from homeassistant.const import CONF_NAME
+
+REQUIREMENTS = ['blinkt==0.1.0']
+
+_LOGGER = logging.getLogger(__name__)
+
+SUPPORT_BLINKT = (SUPPORT_BRIGHTNESS | SUPPORT_RGB_COLOR)
+
+DEFAULT_NAME = 'blinkt'
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
+})
+
+
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """Set up the Blinkt Light platform."""
+    import blinkt
+
+    # ensure that the lights are off when exiting
+    blinkt.set_clear_on_exit()
+
+    name = config.get(CONF_NAME)
+
+    add_devices([BlinktLight(blinkt, name)])
+
+
+class BlinktLight(Light):
+    """Representation of a Blinkt! Light."""
+
+    def __init__(self, blinkt, name):
+        """Initialize a Blinkt Light.
+
+        Default brightness and white color.
+        """
+        self._blinkt = blinkt
+        self._name = name
+        self._is_on = False
+        self._brightness = 255
+        self._rgb_color = [255, 255, 255]
+
+    @property
+    def name(self):
+        """Return the display name of this light."""
+        return self._name
+
+    @property
+    def brightness(self):
+        """Read back the brightness of the light.
+
+        Returns integer in the range of 1-255.
+        """
+        return self._brightness
+
+    @property
+    def rgb_color(self):
+        """Read back the color of the light.
+
+        Returns [r, g, b] list with values in range of 0-255.
+        """
+        return self._rgb_color
+
+    @property
+    def supported_features(self):
+        """Flag supported features."""
+        return SUPPORT_BLINKT
+
+    @property
+    def is_on(self):
+        """Return true if light is on."""
+        return self._is_on
+
+    @property
+    def should_poll(self):
+        """Return if we should poll this device."""
+        return False
+
+    @property
+    def assumed_state(self) -> bool:
+        """Return True if unable to access real state of the entity."""
+        return True
+
+    def turn_on(self, **kwargs):
+        """Instruct the light to turn on and set correct brightness & color."""
+        self._brightness = kwargs.get(ATTR_BRIGHTNESS, 255)
+        percent_bright = (self._brightness / 255)
+
+        if ATTR_RGB_COLOR in kwargs:
+            self._rgb_color = kwargs[ATTR_RGB_COLOR]
+
+        self._blinkt.set_all(self._rgb_color[0],
+                             self._rgb_color[1],
+                             self._rgb_color[2],
+                             percent_bright)
+
+        self._blinkt.show()
+
+        self._is_on = True
+        self.schedule_update_ha_state()
+
+    def turn_off(self, **kwargs):
+        """Instruct the light to turn off."""
+        self._blinkt.set_brightness(0)
+        self._blinkt.show()
+        self._is_on = False
+        self.schedule_update_ha_state()

requirements_all.txt

@@ -92,6 +92,9 @@ blinkpy==0.5.2
 # homeassistant.components.light.blinksticklight
 blinkstick==1.1.8
 
+# homeassistant.components.light.blinkt
+blinkt==0.1.0
+
 # homeassistant.components.sensor.bitcoin
 blockchain==1.3.3