Correction of a bug in the Carouge watering DCA.

dca-carouge-watering/app.py

@@ -325,7 +325,7 @@ def _conv_micro_volts_to_moisture(micro_volts):
     if micro_volts == 0:
         return 0
 
-    return int(micro_volts / 100)
+    return float(micro_volts / 100)
 
 def _conv_micro_volts_to_battery_level(micro_volts):
     """Battery is 0-12v