only refresh screen when lux higher than 5

weatherman.yaml

@@ -168,7 +168,9 @@ time:
               then:
                 - if:
                     condition:
-                      binary_sensor.is_on: presence_detected
+                      all:
+                        - binary_sensor.is_on: presence_detected
+                        - lambda: 'return id(presence_lux).state > 5;'
                     then:
                       - logger.log: "Sensor data updated and activity in home detected: Refreshing display..."
                       - script.execute: update_screen
@@ -208,6 +210,11 @@ sensor:
     entity_category: "diagnostic"
     update_interval: 60s
 
+  # LUX value used for deciding if display should be updated (only if it can be read)
+  - platform: homeassistant
+    entity_id: <YOUR-LUX-SENSOR>
+    id: presence_lux
+
   - platform: homeassistant
     entity_id: weather.<YOUR-WEATHER>
     attribute: temperature