weewx beginner's question

[Ethan]

Hello,
First, My apologies if this is a very rudimentary question.

I'm using a Davis Instruments Vantage Pro2 and I'm trying to receive data from it using a Raspberry Pi 4 and weewx, but it doesn't seem to be detecting the frequency. The station connects to the WeatherLink Console without any issues.

Are there any methods besides rtldavis and rtl433 for detecting the frequency? Any advice or alternative suggestions would be greatly appreciated. Thanks in advance!

[Graham Eddy]

i think the weatherlink console is just a display (with a local app and storage) and proxy to send to davis’ cloud - no useful interface to RPi.

RPi would need to get data either from davis’ cloud (a subscription *grrr*) or via radio from VP2 ISS.

you will not get assistance from davis on bypassing their cloud.

there are several ways to get via radio - but be aware that ISS does frequency hopping of data fragments, with the hops different for each region (no single frequency).

i have explored the following:

 (1) rtl433. rtldavis app understands the hopping for US, EU and (i think) NZ and feeds it into rtldavis driver. i thought i found the AU frequencies but couldn't get it to work (i think hostile radio environment).

 (2) davis envoy with serial/usb datalogger [the original davis interface]. envoy understands the frequency hopping and passes to weewx vantage driver. davis seem to actively discourage it nowadays. i use this today in production.

 (3) meteostick. 3rd party usb stick that is drop-in substitute for envoy/datalogger. i had disappointing results with this (i think hostile radio environment).

⊣GE⊢

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