Author Topic: Purpleair PHP Retrieval script  (Read 23419 times)

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Offline staccermaccer

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Re: Purpleair PHP Retrieval script
« Reply #125 on: July 13, 2022, 01:09:08 AM »
Hi Ken,

Yes it works also with a JSON-file, i will include a screenshot!


PS: THX for giving it a stab!
« Last Edit: July 13, 2022, 05:19:32 AM by staccermaccer »

Offline saratogaWX

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Re: Purpleair PHP Retrieval script
« Reply #126 on: July 13, 2022, 10:46:32 AM »
I'm not sure that JSON has enough details to use.. I see SDS_P1 and SDS_P2 values (along with temperature, humidity), but I don't know if either SDS_P1 or SDS_P2 is a PM2.5 value that the script needs.

Looking more into it .. the SDS_P1 is the PM10 reading and SDS_P2 is the PM2.5 reading.  The firmware JSON return only returns the instantaneous value at the time of the local query -- no trending/historical data such as returned by the PurpleAir JSON query, so I think the PurpleAir script is not directly adaptable to the Luftdaten due to lack of extra data needed by the script.  Sorry...
« Last Edit: July 13, 2022, 11:07:40 AM by saratogaWX »
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