CO2 Calibration without AirGradient App/Cloud

nickf1227 · February 14, 2025, 3:37pm

Is there a way to trigger this manually without the cloud?

I don’t see one but I could be looking in the wrong place.

{
  "country": "US",
  "pmStandard": "ugm3",
  "ledBarMode": "co2",
  "abcDays": 90,
  "tvocLearningOffset": 120,
  "noxLearningOffset": 120,
  "mqttBrokerUrl": "",
  "temperatureUnit": "f",
  "configurationControl": "both",
  "postDataToAirGradient": true,
  "ledBarBrightness": 100,
  "displayBrightness": 100,
  "offlineMode": false,
  "monitorDisplayCompensatedValues": false,
  "model": "I-9PSL-DE",
  "corrections": {
    "pm02": {
      "correctionAlgorithm": "slr_PMS5003_20240104",
      "slr": {
        "intercept": 0,
        "scalingFactor": 0.02896,
        "useEpa2021": true
      }
    }
  }
}

Achim_AirGradient · February 14, 2025, 7:28pm

Yes, have a look here under “Set configuration parameters”.

github.com

airgradienthq/arduino/blob/master/docs/local-server.md

## Local Server API

From [firmware version 3.0.10](firmwares) onwards, the AirGradient ONE and Open Air monitors have below API available. 

### Discovery

The monitors run a mDNS discovery. So within the same network, the monitor can be accessed through:

http://airgradient_{{serialnumber}}.local


The following requests are possible:

### Get Current Air Quality (GET)

With the path "/measures/current" you can get the current air quality data.

http://airgradient_ecda3b1eaaaf.local/measures/current

“ecda3b1eaaaf” being the serial number of your monitor.

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nickf1227 · February 14, 2025, 7:38pm

Thank you I see it now!

co2CalibrationRequested	Can be set to trigger a calibration.	Boolean	true: CO2 calibration (400ppm) will be triggered	{"co2CalibrationRequested": true}