Added `PercentSensor` entity type.

platypush/backend/http/webapp/src/components/panels/Entities/PercentSensor.vue

@@ -0,0 +1,52 @@
+<template>
+  <div class="entity sensor-container">
+    <div class="head">
+      <div class="col-1 icon">
+        <EntityIcon
+          :entity="value"
+          :loading="loading"
+          :error="error" />
+      </div>
+
+      <div class="col-s-8 col-m-9 label">
+        <div class="name" v-text="value.name" />
+      </div>
+
+      <div class="col-s-3 col-m-2 pull-right" v-text="displayValue" />
+    </div>
+  </div>
+</template>
+
+<script>
+import EntityMixin from "./EntityMixin"
+import EntityIcon from "./EntityIcon"
+
+export default {
+  name: 'PercentSensor',
+  components: {EntityIcon},
+  mixins: [EntityMixin],
+  computed: {
+    displayValue() {
+      if (this.value.value == null) {
+        return null
+      }
+
+      let normValue = 100 * this.value.value
+      return (
+        normValue.toString() == normValue.toFixed(0)
+        ? normValue.toFixed(0) : normValue.toFixed(1)
+      ) + '%'
+    },
+  },
+}
+</script>
+
+<style lang="scss" scoped>
+@import "common";
+
+.entity {
+  .icon {
+    margin-right: 1em;
+  }
+}
+</style>

platypush/backend/http/webapp/src/components/panels/Entities/meta.json

@@ -295,6 +295,14 @@
     }
   },
 
+  "percent_sensor": {
+    "name": "Sensor",
+    "name_plural": "Sensors",
+    "icon": {
+      "class": "fas fa-thermometer"
+    }
+  },
+
   "enum_sensor": {
     "name": "Sensor",
     "name_plural": "Sensors",

platypush/entities/sensors.py

@@ -91,7 +91,7 @@ if 'raw_sensor' not in Base.metadata:
         }
 
 
-if 'numeric_sensor' not in Base.metadata:
+if 'numeric_sensor' not in Base.metadata and 'percent_sensor' not in Base.metadata:
 
     class NumericSensor(Sensor):
         """
@@ -113,6 +113,27 @@ if 'numeric_sensor' not in Base.metadata:
             'polymorphic_identity': __tablename__,
         }
 
+    class PercentSensor(NumericSensor):
+        """
+        A subclass of ``NumericSensor`` that represents a percentage value.
+        """
+
+        __tablename__ = 'percent_sensor'
+
+        id = Column(
+            Integer, ForeignKey(NumericSensor.id, ondelete='CASCADE'), primary_key=True
+        )
+
+        __mapper_args__ = {
+            'polymorphic_identity': __tablename__,
+        }
+
+        def __init__(self, *args, **kwargs):
+            self.min = 0.0
+            self.max = 1.0
+            self.unit = '%'
+            super().__init__(*args, **kwargs)
+
 
 if 'binary_sensor' not in Base.metadata: