I have WXT520 working with a BeagleBoneBlack single board computer. On the BBB there are serial ports available through the pin connectors (UART via GPIO pins) The cable from the WXT520 goes to those through a voltage converter chip.
You could do that same thing with a Pi. For USB, I would build a cable from the M12 connector to a DB9 serial connector, then use a DB9 to USB serial adaptor and plug that into the USB on the Raspberry Pi. I dislike USB connectors for long-term unattended connections. I feel that they slowly degrade if they aren't disconnected/reconnected every so often. Therefore my recommendation would be to go the UART/GPIO route if you can. The only thing you should have to do to the weewx code in either case is to aim it at the correct serial port and get the speed/parity/stop-bits configured. On Thu, Sep 30, 2021 at 1:42 AM Derek <[email protected]> wrote: > Can you use a Serial/USB adapter - USB is a serial facility in itself > (Universal Serial Bus). > > -- > Derek > > On 30 September 2021 3:30:02 pm NZDT, Andrew Terhorst < > [email protected]> wrote: > > > >Hi > > > >I have a Vaisala WXT520 with M12 connector and cable but no USB plug. > >If I > >configure the Vaisala to deliver data via RS232 what must I do to get > >weewx > >to understand the messages? > > > >Before judging me too harshly, I am not a Python expert or an embedded > >systems expert. I am a hobbyist. I assume I need to enable the GPIO to > >accept serial comms. Then I need to modify Matthew Wall's driver > >accordingly? I assume it expects a USB connection. > > > >Please advise. Thanks. > > -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/2850DCBD-7598-488C-8AF9-4CE54CE52AF5%40gmail.com > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAAEaNNRJZ0mCE3gf3%3DmtdLc%2BN4WMfV7%3DAOGx8%2B_J%2BzEUkTEB8w%40mail.gmail.com.
