Add support for Tahoma Smoke Sensor

homeassistant/components/binary_sensor/tahoma.py

@@ -0,0 +1,98 @@
+"""
+Support for Tahoma binary sensors.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/binary_sensor.tahoma/
+"""
+
+import logging
+from datetime import timedelta
+
+from homeassistant.components.binary_sensor import (
+    BinarySensorDevice)
+from homeassistant.components.tahoma import (
+    DOMAIN as TAHOMA_DOMAIN, TahomaDevice)
+from homeassistant.const import (STATE_OFF, STATE_ON, ATTR_BATTERY_LEVEL)
+
+DEPENDENCIES = ['tahoma']
+
+_LOGGER = logging.getLogger(__name__)
+
+SCAN_INTERVAL = timedelta(seconds=120)
+
+
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """Set up Tahoma controller devices."""
+    _LOGGER.debug("Setup Tahoma Binary sensor platform")
+    controller = hass.data[TAHOMA_DOMAIN]['controller']
+    devices = []
+    for device in hass.data[TAHOMA_DOMAIN]['devices']['smoke']:
+        devices.append(TahomaBinarySensor(device, controller))
+    add_devices(devices, True)
+
+
+class TahomaBinarySensor(TahomaDevice, BinarySensorDevice):
+    """Representation of a Tahoma Binary Sensor."""
+
+    def __init__(self, tahoma_device, controller):
+        """Initialize the sensor."""
+        super().__init__(tahoma_device, controller)
+
+        self._state = None
+        self._icon = None
+        self._battery = None
+
+    @property
+    def is_on(self):
+        """Return the state of the sensor."""
+        return bool(self._state == STATE_ON)
+
+    @property
+    def device_class(self):
+        """Return the class of the device."""
+        if self.tahoma_device.type == 'rtds:RTDSSmokeSensor':
+            return 'smoke'
+        return None
+
+    @property
+    def icon(self):
+        """Icon for device by its type."""
+        return self._icon
+
+    @property
+    def device_state_attributes(self):
+        """Return the device state attributes."""
+        attr = {}
+        super_attr = super().device_state_attributes
+        if super_attr is not None:
+            attr.update(super_attr)
+
+        if self._battery is not None:
+            attr[ATTR_BATTERY_LEVEL] = self._battery
+        return attr
+
+    def update(self):
+        """Update the state."""
+        self.controller.get_states([self.tahoma_device])
+        if self.tahoma_device.type == 'rtds:RTDSSmokeSensor':
+            if self.tahoma_device.active_states['core:SmokeState']\
+                    == 'notDetected':
+                self._state = STATE_OFF
+            else:
+                self._state = STATE_ON
+
+        if 'core:SensorDefectState' in self.tahoma_device.active_states:
+            # Set to 'lowBattery' for low battery warning.
+            self._battery = self.tahoma_device.active_states[
+                'core:SensorDefectState']
+        else:
+            self._battery = None
+
+        if self._state == STATE_ON:
+            self._icon = "mdi:fire"
+        elif self._battery == 'lowBattery':
+            self._icon = "mdi:battery-alert"
+        else:
+            self._icon = None
+
+        _LOGGER.debug("Update %s, state: %s", self._name, self._state)

homeassistant/components/tahoma.py

@@ -32,7 +32,7 @@
 }, extra=vol.ALLOW_EXTRA)
 
 TAHOMA_COMPONENTS = [
-    'scene', 'sensor', 'cover', 'switch'
+    'scene', 'sensor', 'cover', 'switch', 'binary_sensor'
 ]
 
 TAHOMA_TYPES = {
@@ -50,6 +50,7 @@
     'io:WindowOpenerVeluxIOComponent': 'cover',
     'io:LightIOSystemSensor': 'sensor',
     'rts:GarageDoor4TRTSComponent': 'switch',
+    'rtds:RTDSSmokeSensor': 'smoke',
 }