Add blinkstick support

.coveragerc

@@ -44,6 +44,7 @@ omit =
     homeassistant/components/keyboard.py
     homeassistant/components/light/hue.py
     homeassistant/components/light/limitlessled.py
+    homeassistant/components/light/blinksticklight.py
     homeassistant/components/media_player/cast.py
     homeassistant/components/media_player/denon.py
     homeassistant/components/media_player/itunes.py

homeassistant/components/light/blinksticklight.py

@@ -0,0 +1,72 @@
+"""
+homeassistant.components.light.blinksticklight
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Support for Blinkstick lights.
+"""
+
+from blinkstick import blinkstick
+import logging
+
+_LOGGER = logging.getLogger(__name__)
+
+from homeassistant.components.light import (Light, ATTR_RGB_COLOR)
+
+REQUIREMENTS = ["blinkstick==1.1.7"]
+DEPENDENCIES = []
+
+# pylint: disable=unused-argument
+
+
+def setup_platform(hass, config, add_devices_callback, discovery_info=None):
+    """ Add device specified by serial number """
+    stick = blinkstick.find_by_serial(config['serial'])
+
+    add_devices_callback([BlinkStickLight(stick, config['name'])])
+
+
+class BlinkStickLight(Light):
+    """ Represents a BlinkStick light """
+
+    def __init__(self, stick, name):
+        """ Initialise """
+        self._stick = stick
+        self._name = name
+        self._serial = stick.get_serial()
+        self._rgb_color = stick.get_color()
+
+    @property
+    def should_poll(self):
+        return True
+
+    @property
+    def name(self):
+        return self._name
+
+    @property
+    def rgb_color(self):
+        """ Read back the color of the light """
+        return self._rgb_color
+
+    @property
+    def is_on(self):
+        """ Check whether any of the LEDs colors are non-zero """
+        return sum(self._rgb_color) > 0
+
+    def update(self):
+        """ Read back the device state """
+        self._rgb_color = self._stick.get_color()
+
+    def turn_on(self, **kwargs):
+        """ Turn the device on. """
+        if ATTR_RGB_COLOR in kwargs:
+            self._rgb_color = kwargs[ATTR_RGB_COLOR]
+        else:
+            self._rgb_color = [255, 255, 255]
+
+        self._stick.set_color(red=self._rgb_color[0],
+                              green=self._rgb_color[1],
+                              blue=self._rgb_color[2])
+
+    def turn_off(self, **kwargs):
+        """ Turn the device off """
+        self._stick.turn_off()

requirements_all.txt

@@ -137,3 +137,6 @@ SoCo==0.11.1
 
 # PlexAPI (media_player.plex)
 https://github.com/adrienbrault/python-plexapi/archive/df2d0847e801d6d5cda920326d693cf75f304f1a.zip#python-plexapi==1.0.2
+
+# Blinkstick
+blinkstick==1.1.7