{
  "description":"report the angle value at intervals",
  "spec": {
    "id": "__HOPE__/demo/edison/rotate_sensor/report",
    "in": {
      "ports": [{
        "name": "interval",
        "type": "int",
        "default": 3000
      }]
    },
    "out": {
      "ports": [{
        "name": "angle",
        "type": "int"
      }]
    }
  }
}