No graphs for airquality sensor (grafana)

[janczmok1970]

Hi,

i am having issues that i am getting "No data" in grafana Dashboard.

a) correct setup in esphome as i am getting values in homeassist& curling the /metrics works

• job_name: 'airgradient-aqbuero'
  metrics_path: /metrics
  scrape_interval: 30s
  static_configs:
  • targets: ['192.168.200.251:9925']

b) querying prometheus on 9090 reports values:

esphome_sensor_value{id="co2_level", instance="192.168.200.251:9925", job="airgradient-aqbuero", name="CO2 level", unit="ppm"}
esphome_sensor_value{id="co2_level", instance="192.168.200.251:9926", job="airgradient-aqbuero", name="CO2 level", unit="ppm"}
esphome_sensor_value{id="humidity", instance="192.168.200.251:9925", job="airgradient-aqbuero", name="Humidity", unit="%"}
esphome_sensor_value{id="humidity", instance="192.168.200.251:9926", job="airgradient-aqbuero", name="Humidity", unit="%"}
esphome_sensor_value{id="particulate_matter__10_0_m_concentration", instance="192.168.200.251:9925", job="airgradient-aqbuero", name="Particulate Matter <10.0µm Concentration", unit="µg/m³"}
esphome_sensor_value{id="particulate_matter__10_0_m_concentration", instance="192.168.200.251:9926", job="airgradient-aqbuero", name="Particulate Matter <10.0µm Concentration", unit="µg/m³"}
esphome_sensor_value{id="particulate_matter__1_0_m_concentration", instance="192.168.200.251:9925", job="airgradient-aqbuero", name="Particulate Matter <1.0µm Concentration", unit="µg/m³"}
esphome_sensor_value{id="particulate_matter__1_0_m_concentration", instance="192.168.200.251:9926", job="airgradient-aqbuero", name="Particulate Matter <1.0µm Concentration", unit="µg/m³"}
esphome_sensor_value{id="particulate_matter__2_5_m_concentration", instance="192.168.200.251:9925", job="airgradient-aqbuero", name="Particulate Matter <2.5µm Concentration", unit="µg/m³"}
esphome_sensor_value{id="particulate_matter__2_5_m_concentration", instance="192.168.200.251:9926", job="airgradient-aqbuero", name="Particulate Matter <2.5µm Concentration", unit="µg/m³"}
esphome_sensor_value{id="temperature", instance="192.168.200.251:9925", job="airgradient-aqbuero", name="Temperature", unit="°C"}
esphome_sensor_value{id="temperature", instance="192.168.200.251:9926", job="airgradient-aqbuero", name="Temperature", unit="°C"}

but no graphs.

c) i did check grafana dashboard config:

 "datasource": {
    "type": "prometheus",
    "uid": "P1809F7CD0C75ACF3"
  },
  "exemplar": true,
  "expr": "rhum{job=\"airgradient-aqbuero\"}",
  "interval": "",
  "legendFormat": "",
  "queryType": "randomWalk",
  "refId": "A"
}

so where's the error ?

[martinbrose]

Hi @janczmok1970 ,

did you make this work or do you still have this issue?

[janczmok1970]

i chose another variant. —jan

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