Rule Description

rule.json

{
  "id" : "motion1",
  "label" : "Motion-based lamp switch",
  "tags" : ["motion", "light"], 
  "description" : "Switches a lamp on motion detection.", 
  "active": true,
  "on": [
    {
      "type": "ItemUpdateEvent",
      "config": {
          "itemName": "Livingroom_Motion"
      }
    },
    {
      "type": "ItemUpdateEvent",
      "config": {
          "itemName": "Livingroom_Brightness"
      }
    }
  ],
  "if": [
    {
      "type": "Compare",
      "config": {
        "operator": "<",
        "left:": "items.Livingroom_Brightness",
        "right": "30"
      }
    }
  ],
  "then": [
    {
      "type": "SendCommand",
      "config": {
        "itemName": "DinnerTable_Light",
        "command": "ON"
      }
    }
  ]
}