Grafana dashboard: Home Assistant state changes

### Requirements and Installation

* Install [InfluxDB v1.8+]
* Add [InfluxDB integration] to [Home Assistant]
* Add [InfluxDB datasource] to [Grafana], select **[Flux]** Query Language
* [Import] this [dashboard]

---
For InfluxQL (InfluxDB v1), use this [dashboard.]

  [InfluxDB v1.8+]: <https://docs.influxdata.com/influxdb/v2.0/>
  [InfluxDB integration]: <https://www.home-assistant.io/integrations/influxdb/>
  [Home Assistant]: <https://www.home-assistant.io/>
  [InfluxDB datasource]: <https://grafana.com/docs/grafana/latest/datasources/influxdb/>
  [Grafana]: <https://grafana.com/>
  [Flux]: <https://grafana.com/docs/grafana/latest/datasources/influxdb/influxdb-flux/>
  [Import]: <https://grafana.com/docs/grafana/latest/reference/export_import/#importing-a-dashboard>
  [dashboard]: <https://grafana.com/grafana/dashboards/15001>
  [dashboard.]: <https://grafana.com/grafana/dashboards/12705>

{
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    {
      "name": "DS_HOMEASSISTANT",
      "label": "HomeAssistant",
      "description": "",
      "type": "datasource",
      "pluginId": "influxdb",
      "pluginName": "InfluxDB"
    }
  ],
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      "id": "grafana",
      "name": "Grafana",
      "version": "8.1.3"
    },
    {
      "type": "panel",
      "id": "graph",
      "name": "Graph (old)",
      "version": ""
    },
    {
      "type": "datasource",
      "id": "influxdb",
      "name": "InfluxDB",
      "version": "1.0.0"
    }
  ],
  "annotations": {
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        "builtIn": 1,
        "datasource": "-- Grafana --",
        "enable": true,
        "hide": true,
        "iconColor": "rgba(0, 211, 255, 1)",
        "name": "Annotations & Alerts",
        "target": {
          "limit": 100,
          "matchAny": false,
          "tags": [],
          "type": "dashboard"
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        "type": "dashboard"
      }
    ]
  },
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  "graphTooltip": 1,
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  "iteration": 1631478046761,
  "links": [],
  "panels": [
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      "gridPos": {
        "h": 1,
        "w": 24,
        "x": 0,
        "y": 0
      },
      "id": 9,
      "panels": [],
      "title": "Absolute values",
      "type": "row"
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_HOMEASSISTANT}",
      "fieldConfig": {
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          "displayName": "${__field.labels.friendly_name}",
          "links": []
        },
        "overrides": []
      },
      "fill": 0,
      "fillGradient": 0,
      "gridPos": {
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        "w": 24,
        "x": 0,
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          "rawQuery": true,
          "refId": "A",
          "resultFormat": "time_series",
          "select": [
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              {
                "params": [
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                "type": "field"
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                "params": [],
                "type": "mean"
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      "thresholds": [],
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      "timeRegions": [],
      "timeShift": null,
      "title": "Minimum Values",
      "tooltip": {
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        "value_type": "individual"
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      }
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      "aliasColors": {},
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      "dashes": false,
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          "links": []
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          "refId": "A",
          "resultFormat": "time_series",
          "select": [
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      "thresholds": [],
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        "value_type": "individual"
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      }
    },
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      "aliasColors": {},
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          "links": []
        },
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      },
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      },
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      },
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      },
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              ],
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            },
            {
              "params": [
                "null"
              ],
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            }
          ],
          "orderByTime": "ASC",
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          "rawQuery": true,
          "refId": "A",
          "resultFormat": "time_series",
          "select": [
            [
              {
                "params": [
                  "value"
                ],
                "type": "field"
              },
              {
                "params": [],
                "type": "mean"
              }
            ]
          ],
          "tags": []
        }
      ],
      "thresholds": [],
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      "timeRegions": [],
      "timeShift": null,
      "title": "Mean Values",
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        "value_type": "individual"
      },
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      "xaxis": {
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      },
      "yaxes": [
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        },
        {
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      ],
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      }
    },
    {
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      "datasource": null,
      "gridPos": {
        "h": 1,
        "w": 24,
        "x": 0,
        "y": 28
      },
      "id": 7,
      "panels": [
        {
          "aliasColors": {},
          "bars": false,
          "dashLength": 10,
          "dashes": false,
          "datasource": "${DS_HOMEASSISTANT}",
          "fieldConfig": {
            "defaults": {
              "displayName": "${__field.labels.friendly_name}",
              "links": []
            },
            "overrides": []
          },
          "fill": 0,
          "fillGradient": 0,
          "gridPos": {
            "h": 9,
            "w": 24,
            "x": 0,
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          },
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          "legend": {
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          },
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          "nullPointMode": "null",
          "options": {
            "alertThreshold": true
          },
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          "points": false,
          "renderer": "flot",
          "seriesOverrides": [],
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          "stack": false,
          "steppedLine": true,
          "targets": [
            {
              "alias": "$tag_entity_id ($measurement)",
              "groupBy": [
                {
                  "params": [
                    "$__interval"
                  ],
                  "type": "time"
                },
                {
                  "params": [
                    "null"
                  ],
                  "type": "fill"
                }
              ],
              "orderByTime": "ASC",
              "policy": "default",
              "query": "from(bucket: v.defaultBucket)\n  |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\n  |> filter(fn: (r) => r[\"domain\"] == \"${domain}\")\n  |> filter(fn: (r) => r[\"_measurement\"] == \"${measurement}\")\n  |> filter(fn: (r) => r[\"entity_id\"] =~ /${entity_id:regex}/)\n  |> filter(fn: (r) => r[\"_field\"] == \"value\")\n  |> derivative(unit: ${rate}, nonNegative: false)\n  |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: true)\n  |> yield(name: \"mean\")\n",
              "rawQuery": true,
              "refId": "A",
              "resultFormat": "time_series",
              "select": [
                [
                  {
                    "params": [
                      "value"
                    ],
                    "type": "field"
                  },
                  {
                    "params": [],
                    "type": "mean"
                  }
                ]
              ],
              "tags": []
            }
          ],
          "thresholds": [],
          "timeFrom": null,
          "timeRegions": [],
          "timeShift": null,
          "title": "Value change in $rate",
          "tooltip": {
            "shared": true,
            "sort": 1,
            "value_type": "individual"
          },
          "type": "graph",
          "xaxis": {
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            "show": true,
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          },
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            "align": false,
            "alignLevel": null
          }
        }
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      "type": "row"
    }
  ],
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  "schemaVersion": 30,
  "style": "dark",
  "tags": [
    "hass",
    "influxdb",
    "iot"
  ],
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        "error": null,
        "hide": 0,
        "includeAll": false,
        "label": "Domain",
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        "regex": "",
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        "tagValuesQuery": "",
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          },
          {
            "selected": false,
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            "value": "30d"
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        ],
        "query": "10s,30s,1m,5m,10m,30m,1h,6h,12h,1d,7d,14d,30d",
        "queryValue": "",
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      },
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        "error": null,
        "hide": 0,
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        "name": "rate",
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        "queryValue": "",
        "refresh": 2,
        "skipUrlSync": false,
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    ]
  },
  "time": {
    "from": "now-150d",
    "to": "now"
  },
  "timepicker": {
    "refresh_intervals": [
      "5s",
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      "30m",
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  },
  "timezone": "",
  "title": "Home Assistant state changes",
  "uid": "dPPcSG4Mk",
  "version": 5
}