Restricted temperature units for Celsius and Fahrenheit to the standardized units (#22108)

homeassistant/components/lcn/const.py

@@ -1,6 +1,9 @@
+# coding: utf-8
 """Constants for the LCN component."""
 import re
 
+from homeassistant.const import TEMP_CELSIUS, TEMP_FAHRENHEIT
+
 DOMAIN = 'lcn'
 DATA_LCN = 'lcn'
 DEFAULT_NAME = 'pchk'
@@ -49,9 +52,9 @@ THRESHOLDS = ['THRS1', 'THRS2', 'THRS3', 'THRS4', 'THRS5',
 S0_INPUTS = ['S0INPUT1', 'S0INPUT2', 'S0INPUT3', 'S0INPUT4']
 
 VAR_UNITS = ['', 'LCN', 'NATIVE',
-             'CELSIUS', '\u00b0CELSIUS', '\u00b0C',
+             TEMP_CELSIUS,
-             'KELVIN', '\u00b0KELVIN', '\u00b0K',
+             '°K',
-             'FAHRENHEIT', '\u00b0FAHRENHEIT', '\u00b0F'
+             TEMP_FAHRENHEIT,
              'LUX_T', 'LX_T',
              'LUX_I', 'LUX', 'LX',
              'M/S', 'METERPERSECOND',
@@ -59,4 +62,4 @@ VAR_UNITS = ['', 'LCN', 'NATIVE',
              'PPM',
              'VOLT', 'V',
              'AMPERE', 'AMP', 'A',
-             'DEGREE', '\u00b0']
+             'DEGREE', '°']

homeassistant/components/lcn/sensor.py

@@ -43,8 +43,8 @@ class LcnVariableSensor(LcnDevice):
         super().__init__(config, address_connection)
 
         self.variable = self.pypck.lcn_defs.Var[config[CONF_SOURCE]]
-        self.unit = self.pypck.lcn_defs.VarUnit[
+        self.unit = self.pypck.lcn_defs.VarUnit.parse(
-            config[CONF_UNIT_OF_MEASUREMENT]]
+            config[CONF_UNIT_OF_MEASUREMENT])
 
         self._value = None