Files
smart-city-digital-twin-mar…/grafana/provisioning/dashboards/smart-city-dashboards.json.bak
Eric FELIXINE 943836f8fb feat: activate BunkerM MQTT broker + fix Telegraf
- BunkerM: recreated with port 1883 (external) -> 1900 (internal)
- BunkerM: disabled dynsec plugin, using password_file auth (bunker/bunker)
- Simulator: ENABLE_BUNKER=1, BUNKERM_PORT=1900
- Telegraf: reactivated BunkerM consumer on port 1900
- Telegraf: recreated container (3 MQTT consumers connected)
- Grafana: dashboard v4 with corrected Flux queries
- Grafana: datasource fixed (bucket=smartcity, token=my-super-token)

Verified:
- Simulator publishes to EMQX , Mosquitto , BunkerM 
- Telegraf receives from all 3 brokers 
- InfluxDB has data from all brokers 
- Grafana dashboard displays data 
2026-05-25 20:03:55 -04:00

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{
"annotations": {"list": []},
"editable": true,
"fiscalYearStartMonth": 0,
"graphTooltip": 0,
"id": null,
"links": [],
"panels": [
{
"title": "Air Quality — PM2.5 (µg/m³)",
"type": "timeseries",
"datasource": {"type": "influxdb", "name": "Influxdb-v2"},
"targets": [
{
"query": "from(bucket:\"smartcity\")\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\n |> filter(fn: (r) => r[\"topic\"] =~ /smartcity\\/airquality/)\n |> filter(fn: (r) => r[\"_field\"] == \"pm25_ugm3\")\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\n |> yield(name: \"mean\")"
}
],
"gridPos": {"h": 8, "w": 12, "x": 0, "y": 0}
},
{
"title": "Air Quality — NO2 (µg/m³)",
"type": "timeseries",
"datasource": {"type": "influxdb", "name": "Influxdb-v2"},
"targets": [
{
"query": "from(bucket:\"smartcity\")\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\n |> filter(fn: (r) => r[\"topic\"] =~ /smartcity\\/airquality/)\n |> filter(fn: (r) => r[\"_field\"] == \"no2_ugm3\")\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\n |> yield(name: \"mean\")"
}
],
"gridPos": {"h": 8, "w": 12, "x": 12, "y": 0}
},
{
"title": "Temperature (°C)",
"type": "timeseries",
"datasource": {"type": "influxdb", "name": "Influxdb-v2"},
"targets": [
{
"query": "from(bucket:\"smartcity\")\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\n |> filter(fn: (r) => r[\"topic\"] =~ /smartcity\\/weather/)\n |> filter(fn: (r) => r[\"_field\"] == \"temperature_celsius\")\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\n |> yield(name: \"mean\")"
}
],
"gridPos": {"h": 8, "w": 12, "x": 0, "y": 8}
},
{
"title": "Humidity (%)",
"type": "timeseries",
"datasource": {"type": "influxdb", "name": "Influxdb-v2"},
"targets": [
{
"query": "from(bucket:\"smartcity\")\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\n |> filter(fn: (r) => r[\"topic\"] =~ /smartcity\\/weather/)\n |> filter(fn: (r) => r[\"_field\"] == \"humidity_percent\")\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\n |> yield(name: \"mean\")"
}
],
"gridPos": {"h": 8, "w": 12, "x": 12, "y": 8}
},
{
"title": "Wind Speed (km/h)",
"type": "timeseries",
"datasource": {"type": "influxdb", "name": "Influxdb-v2"},
"targets": [
{
"query": "from(bucket:\"smartcity\")\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\n |> filter(fn: (r) => r[\"topic\"] =~ /smartcity\\/weather/)\n |> filter(fn: (r) => r[\"_field\"] == \"wind_speed_kmh\")\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\n |> yield(name: \"mean\")"
}
],
"gridPos": {"h": 8, "w": 12, "x": 0, "y": 16}
},
{
"title": "Rain (mm)",
"type": "timeseries",
"datasource": {"type": "influxdb", "name": "Influxdb-v2"},
"targets": [
{
"query": "from(bucket:\"smartcity\")\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\n |> filter(fn: (r) => r[\"topic\"] =~ /smartcity\\/weather/)\n |> filter(fn: (r) => r[\"_field\"] == \"rain_mm\")\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\n |> yield(name: \"mean\")"
}
],
"gridPos": {"h": 8, "w": 12, "x": 12, "y": 16}
},
{
"title": "Traffic — Vehicle Count",
"type": "timeseries",
"datasource": {"type": "influxdb", "name": "Influxdb-v2"},
"targets": [
{
"query": "from(bucket:\"smartcity\")\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\n |> filter(fn: (r) => r[\"topic\"] =~ /smartcity\\/traffic/)\n |> filter(fn: (r) => r[\"_field\"] == \"vehicle_count\")\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\n |> yield(name: \"mean\")"
}
],
"gridPos": {"h": 8, "w": 12, "x": 0, "y": 24}
},
{
"title": "Traffic — Avg Speed (km/h)",
"type": "timeseries",
"datasource": {"type": "influxdb", "name": "Influxdb-v2"},
"targets": [
{
"query": "from(bucket:\"smartcity\")\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\n |> filter(fn: (r) => r[\"topic\"] =~ /smartcity\\/traffic/)\n |> filter(fn: (r) => r[\"_field\"] == \"average_speed_kmh\")\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\n |> yield(name: \"mean\")"
}
],
"gridPos": {"h": 8, "w": 12, "x": 12, "y": 24}
},
{
"title": "Parking — Available Spots",
"type": "timeseries",
"datasource": {"type": "influxdb", "name": "Influxdb-v2"},
"targets": [
{
"query": "from(bucket:\"smartcity\")\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\n |> filter(fn: (r) => r[\"topic\"] =~ /smartcity\\/parking/)\n |> filter(fn: (r) => r[\"_field\"] == \"available_spots\")\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\n |> yield(name: \"mean\")"
}
],
"gridPos": {"h": 8, "w": 12, "x": 0, "y": 32}
},
{
"title": "Parking — Occupancy (%)",
"type": "timeseries",
"datasource": {"type": "influxdb", "name": "Influxdb-v2"},
"targets": [
{
"query": "from(bucket:\"smartcity\")\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\n |> filter(fn: (r) => r[\"topic\"] =~ /smartcity\\/parking/)\n |> filter(fn: (r) => r[\"_field\"] == \"occupancy_percent\")\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\n |> yield(name: \"mean\")"
}
],
"gridPos": {"h": 8, "w": 12, "x": 12, "y": 32}
},
{
"title": "Noise Level (dB)",
"type": "timeseries",
"datasource": {"type": "influxdb", "name": "Influxdb-v2"},
"targets": [
{
"query": "from(bucket:\"smartcity\")\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\n |> filter(fn: (r) => r[\"topic\"] =~ /smartcity\\/noise/)\n |> filter(fn: (r) => r[\"_field\"] == \"noise_level_db\")\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\n |> yield(name: \"mean\")"
}
],
"gridPos": {"h": 8, "w": 12, "x": 0, "y": 40}
},
{
"title": "Light — Brightness (lux)",
"type": "timeseries",
"datasource": {"type": "influxdb", "name": "Influxdb-v2"},
"targets": [
{
"query": "from(bucket:\"smartcity\")\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\n |> filter(fn: (r) => r[\"topic\"] =~ /smartcity\\/light/)\n |> filter(fn: (r) => r[\"_field\"] == \"brightness_lux\")\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\n |> yield(name: \"mean\")"
}
],
"gridPos": {"h": 8, "w": 12, "x": 12, "y": 40}
},
{
"title": "UV Index",
"type": "timeseries",
"datasource": {"type": "influxdb", "name": "Influxdb-v2"},
"targets": [
{
"query": "from(bucket:\"smartcity\")\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\n |> filter(fn: (r) => r[\"topic\"] =~ /smartcity\\/weather/)\n |> filter(fn: (r) => r[\"_field\"] == \"uv_index\")\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\n |> yield(name: \"mean\")"
}
],
"gridPos": {"h": 8, "w": 12, "x": 0, "y": 48}
},
{
"title": "Pressure (hPa)",
"type": "timeseries",
"datasource": {"type": "influxdb", "name": "Influxdb-v2"},
"targets": [
{
"query": "from(bucket:\"smartcity\")\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\n |> filter(fn: (r) => r[\"topic\"] =~ /smartcity\\/weather/)\n |> filter(fn: (r) => r[\"_field\"] == \"pressure_hpa\")\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\n |> yield(name: \"mean\")"
}
],
"gridPos": {"h": 8, "w": 12, "x": 12, "y": 48}
}
],
"schemaVersion": 36,
"style": "dark",
"tags": ["smartcity", "martinique", "iot"],
"templating": {"list": []},
"time": {"from": "now-1h", "to": "now"},
"title": "Smart City Digital Twin — Martinique",
"uid": "smartcity-martinique-v2",
"version": 2
}