The workflow JSON

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{
  "id": "demo-08-reset",
  "name": "08 - Hourly Demo Reset",
  "nodes": [
    {
      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "hours",
              "hoursInterval": 1
            }
          ]
        }
      },
      "id": "reset-schedule",
      "name": "Every Hour",
      "type": "n8n-nodes-base.scheduleTrigger",
      "typeVersion": 1.2,
      "position": [
        -140,
        0
      ]
    },
    {
      "parameters": {
        "serviceName": {
          "__rl": true,
          "mode": "id",
          "value": "/rover/reset_demo"
        },
        "serviceType": {
          "__rl": true,
          "mode": "id",
          "value": "std_srvs/srv/Trigger"
        },
        "requestInputMode": "raw",
        "requestJson": "{}",
        "timeoutMs": 30000
      },
      "id": "reset-call",
      "name": "Reset the Rover",
      "type": "@fhnw-rover/n8n-nodes-ros2.rosServiceCall",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "rosBridgeApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "topicName": {
          "__rl": true,
          "mode": "id",
          "value": "/rover/notifications"
        },
        "messageType": {
          "__rl": true,
          "mode": "id",
          "value": "std_msgs/msg/String"
        },
        "messageInputMode": "raw",
        "messageJson": "={{ JSON.stringify({ data: 'Hourly reset: ' + $json.response.message }) }}",
        "options": {}
      },
      "id": "reset-notify",
      "name": "Announce the Reset",
      "type": "@fhnw-rover/n8n-nodes-ros2.rosTopicPublish",
      "typeVersion": 1,
      "position": [
        340,
        0
      ],
      "credentials": {
        "rosBridgeApi": {
          "name": "<your credential>"
        }
      }
    }
  ],
  "connections": {
    "Every Hour": {
      "main": [
        [
          {
            "node": "Reset the Rover",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Reset the Rover": {
      "main": [
        [
          {
            "node": "Announce the Reset",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": true,
  "settings": {
    "executionOrder": "v1"
  }
}