Author Topic: Weewx with WU Rapidfire using WeatherlinkliveUDP Driver  (Read 793 times)

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Offline RoryG

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    • Lerwick PWS
Weewx with WU Rapidfire using WeatherlinkliveUDP Driver
« on: February 23, 2022, 08:43:55 AM »
Hi,

I'm using Weewx with the WeatherlinkLiveUDP driver with data from a Davis Vantage Pro2 Plus via WLL. As an experiment I have set up a second WU station to try out the rapidfire mode. It seems to work quite well, however the pressure doesn't update every loop (likely the WLL is only putting it out at longer intervals), and the wind gusts are lower than wind speed - I assume the gust speed is also not updated every loop and an average value is sent?

This is my normal station updated every five minutes πvia the Davis Weatherlink platform: https://www.wunderground.com/dashboard/pws/ISHETL14/

An this is the same station using rapidfire from Weewx: https://www.wunderground.com/dashboard/pws/ISHETL39/

The data is uploading every few seconds, seems to be between one and seven seconds:

Feb 23 13:39:38 weather weewx[39898] INFO weewx.restx: Wunderground-RF: Published record 2022-02-23 13:39:37 GMT (1645623577)
Feb 23 13:39:39 weather weewx[39898] INFO weewx.restx: Wunderground-RF: Published record 2022-02-23 13:39:39 GMT (1645623579)
Feb 23 13:39:42 weather weewx[39898] INFO weewx.restx: Wunderground-RF: Published record 2022-02-23 13:39:42 GMT (1645623582)
Feb 23 13:39:44 weather weewx[39898] INFO weewx.restx: Wunderground-RF: Published record 2022-02-23 13:39:44 GMT (1645623584)
Feb 23 13:39:48 weather weewx[39898] INFO weewx.restx: Wunderground-RF: Published record 2022-02-23 13:39:47 GMT (1645623587)
Feb 23 13:39:49 weather weewx[39898] INFO weewx.restx: Wunderground-RF: Published record 2022-02-23 13:39:49 GMT (1645623589)
Feb 23 13:39:52 weather weewx[39898] INFO weewx.restx: Wunderground-RF: Published record 2022-02-23 13:39:52 GMT (1645623592)
Feb 23 13:39:54 weather weewx[39898] INFO weewx.restx: Wunderground-RF: Published record 2022-02-23 13:39:54 GMT (1645623594)
Feb 23 13:39:57 weather weewx[39898] INFO weewx.restx: Wunderground-RF: Published record 2022-02-23 13:39:57 GMT (1645623597)
Feb 23 13:40:03 weather weewx[39898] INFO weewx.restx: Wunderground-RF: Published record 2022-02-23 13:39:59 GMT (1645623599)
Feb 23 13:40:04 weather weewx[39898] INFO weewx.restx: Wunderground-RF: Published record 2022-02-23 13:40:02 GMT (1645623602)
Feb 23 13:40:04 weather weewx[39898] INFO weewx.restx: Wunderground-RF: Published record 2022-02-23 13:40:04 GMT (1645623604)
Feb 23 13:40:08 weather weewx[39898] INFO weewx.restx: Wunderground-RF: Published record 2022-02-23 13:40:07 GMT (1645623607)
Feb 23 13:40:09 weather weewx[39898] INFO weewx.restx: Wunderground-RF: Published record 2022-02-23 13:40:09 GMT (1645623609)

Just wondering if there's a way to reduce the update rate so the pressure is sent every time? Maybe one of the other WLL drivers will work?

Thanks,

Rory

Offline RoryG

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Re: Weewx with WU Rapidfire using WeatherlinkliveUDP Driver
« Reply #1 on: February 23, 2022, 05:51:12 PM »
After a bit of research there appears to be a bug in the WLL firmware so the windGust value is not updated with every loop packet. Not sure about the pressure though, the driver is set to poll every 10 seconds but it only updates on WU every 30 seconds or so.

Offline wxkeith

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Re: Weewx with WU Rapidfire using WeatherlinkliveUDP Driver
« Reply #2 on: February 28, 2022, 05:19:38 PM »
Just wanted to add a "me too" to this. I'm seeing this using the WeatherFlowUDP driver as of 4.6.0 and later. The "caching" mechanism in weewx for the Weather Underground rapidfire upload doesn't seem to be sending along pressure and dewpoint with every loop packet. I haven't been able to figure out exactly what changed to cause this, but it's been working fine since I downgraded to 4.5.1.

(I had sent a reply to your post on weewx-user about this, but it was deleted. I may have fat fingered and done that myself, but I'd rather not resend in the event a moderator deleted it.)

- Keith

 

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