Hue device capabilities. Color temperature support for light component and hue platform

homeassistant/components/light/__init__.py

@@ -43,6 +43,9 @@ Supports following parameters:
    A list containing three integers representing the xy color you want the
    light to be.
 
+ - ct_color
+   An INT in mireds represending the color temperature you want the light to be
+
  - brightness
    Integer between 0 and 255 representing how bright you want the light to be.
 
@@ -77,6 +80,7 @@ ATTR_TRANSITION = "transition"
 # lists holding color values
 ATTR_RGB_COLOR = "rgb_color"
 ATTR_XY_COLOR = "xy_color"
+ATTR_CT_COLOR = "ct_color"
 
 # int with value 0 .. 255 representing brightness of the light
 ATTR_BRIGHTNESS = "brightness"
@@ -105,6 +109,7 @@ DISCOVERY_PLATFORMS = {
 PROP_TO_ATTR = {
     'brightness': ATTR_BRIGHTNESS,
     'color_xy': ATTR_XY_COLOR,
+    'color_ct': ATTR_CT_COLOR,
 }
 
 _LOGGER = logging.getLogger(__name__)
@@ -119,8 +124,8 @@ def is_on(hass, entity_id=None):
 
 # pylint: disable=too-many-arguments
 def turn_on(hass, entity_id=None, transition=None, brightness=None,
-            rgb_color=None, xy_color=None, profile=None, flash=None,
-            effect=None):
+            rgb_color=None, xy_color=None, ct_color=None, profile=None,
+            flash=None, effect=None):
     """ Turns all or specified light on. """
     data = {
         key: value for key, value in [
@@ -130,6 +135,7 @@ def turn_on(hass, entity_id=None, transition=None, brightness=None,
             (ATTR_BRIGHTNESS, brightness),
             (ATTR_RGB_COLOR, rgb_color),
             (ATTR_XY_COLOR, xy_color),
+            (ATTR_CT_COLOR, ct_color),
             (ATTR_FLASH, flash),
             (ATTR_EFFECT, effect),
         ] if value is not None
@@ -240,6 +246,16 @@ def setup(hass, config):
                 # ValueError if value could not be converted to float
                 pass
 
+        if ATTR_CT_COLOR in dat:
+            # ct_color should be an int of mirads value
+            ctcolor = dat.get(ATTR_CT_COLOR)
+
+            # Without this check, a ctcolor with value '99' would work
+            # These values are based on Philips Hue, may need ajustment later
+            if isinstance(ctcolor, int):
+                if 154 <= ctcolor <= 500:
+                    params[ATTR_CT_COLOR] = ctcolor
+
         if ATTR_RGB_COLOR in dat:
             try:
                 # rgb_color should be a list containing 3 ints
@@ -301,6 +317,11 @@ class Light(ToggleEntity):
         """ XY color value [float, float]. """
         return None
 
+    @property
+    def color_ct(self):
+        """ CT color value in mirads. """
+        return None
+
     @property
     def device_state_attributes(self):
         """ Returns device specific state attributes. """

homeassistant/components/light/hue.py

@@ -14,9 +14,9 @@ from homeassistant.loader import get_component
 import homeassistant.util as util
 from homeassistant.const import CONF_HOST, DEVICE_DEFAULT_NAME
 from homeassistant.components.light import (
-    Light, ATTR_BRIGHTNESS, ATTR_XY_COLOR, ATTR_TRANSITION,
-    ATTR_FLASH, FLASH_LONG, FLASH_SHORT, ATTR_EFFECT,
-    EFFECT_COLORLOOP)
+    Light, ATTR_BRIGHTNESS, ATTR_XY_COLOR, ATTR_CT_COLOR,
+    ATTR_TRANSITION, ATTR_FLASH, FLASH_LONG, FLASH_SHORT,
+    ATTR_EFFECT, EFFECT_COLORLOOP)
 
 REQUIREMENTS = ['phue==0.8']
 MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
@@ -147,6 +147,16 @@ class HueLight(Light):
         self.bridge = bridge
         self.update_lights = update_lights
 
+        # Hue can control multiple type of lights
+        capability_map = {
+            'Dimmable light': ['bri'],
+            'Dimmable plug-in unit': ['bri'],
+            'Color light': ['bri', 'xy'],
+            'Extended color light': ['bri', 'xy', 'ct'],
+            'unknown': []}
+        self.capabilities = capability_map.get(
+            self.info['type'], 'unknown')
+
     @property
     def unique_id(self):
         """ Returns the id of this Hue light """
@@ -161,12 +171,26 @@ class HueLight(Light):
     @property
     def brightness(self):
         """ Brightness of this light between 0..255. """
-        return self.info['state']['bri']
+        if 'bri' in self.capabilities:
+            return self.info['state']['bri']
+        else:
+            return None
 
     @property
     def color_xy(self):
         """ XY color value. """
-        return self.info['state'].get('xy')
+        if 'xy' in self.capabilities:
+            return self.info['state'].get('xy')
+        else:
+            return None
+
+    @property
+    def color_ct(self):
+        """ CT color value. """
+        if 'ct' in self.capabilities:
+            return self.info['state'].get('ct')
+        else:
+            return None
 
     @property
     def is_on(self):
@@ -190,6 +214,9 @@ class HueLight(Light):
         if ATTR_XY_COLOR in kwargs:
             command['xy'] = kwargs[ATTR_XY_COLOR]
 
+        if ATTR_CT_COLOR in kwargs:
+            command['ct'] = kwargs[ATTR_CT_COLOR]
+
         flash = kwargs.get(ATTR_FLASH)
 
         if flash == FLASH_LONG:

homeassistant/components/light/services.yaml

@@ -20,6 +20,10 @@ turn_on:
       description: Color for the light in XY-format
       example: '[0.52, 0.43]'
 
+    ct_color:
+      description: Color temperature for the light in mireds (154-500)
+      example: '250'
+
     brightness:
       description: Number between 0..255 indicating brightness
       example: 120