Cumulus reports air quality data although sensor not connected

KarlS · Post by **KarlS** » Wed 28 Dec 2022 4:27 pm

Due to the severe weather with close to -40°C last week I brought my WH41 air quality sensor indoors to prevent damage to the batteries. I also disabled the sensor in the GW1000 configuration. I did not deselect Extra Sensor 1 in the Cumulus configuration. With no data coming from the gateway, Cumulus still reports a constant 6µg/m³ (17.1µg/m³ avg).

Edit: log file attached

philpugh · Post by **philpugh** » Wed 28 Dec 2022 5:02 pm

Did you stop and restart CumulusMX after you 'removed' the WH41 ?

KarlS · Post by **KarlS** » Wed 28 Dec 2022 5:23 pm

philpugh wrote: ↑Wed 28 Dec 2022 5:02 pm Did you stop and restart CumulusMX after you 'removed' the WH41 ?

No, I did not. And I don't really see why it should make a difference. From November to March I also disconnect the rain gauge and the log shows this as "Error, missing rainfall". I would expect a similar message when there are no air quality data in the payload. Maybe Mark could implement a check for expected but missing payload data?

mcrossley · Post by **mcrossley** » Wed 28 Dec 2022 6:02 pm

CMX will just flatline at the last value received unless you restart it (and/or set your primary air sensor to "No sensor")

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Cumulus reports air quality data although sensor not connected

Cumulus reports air quality data although sensor not connected

Re: Cumulus reports air quality data although sensor not connected

Re: Cumulus reports air quality data although sensor not connected

Re: Cumulus reports air quality data although sensor not connected