1. If the Vantage is showing up as /dev/vantage, you added a udev rule. Perhaps you forgot about it? See *Installing a udev script <https://github.com/weewx/weewx/wiki/Troubleshooting-the-Davis-Vantage-station#installing-a-udev-script>*
2. If you did not have an RTC, then the Pi uses the last recorded time, which as you noted, could be the previous day. See the *Time <https://github.com/weewx/weewx/wiki/Raspberry-Pi#time>* section in the article about RPis. If you have any additional problems, be sure to include a log. -tk On Sat, May 24, 2025 at 11:15 AM GordonT <train...@gmail.com> wrote: > Firstly when l installed it the vantage showed up as /dev/ttyUSB0 but now > its /dev/vantage, has something changed ? > > I also had an issue where after a period it would stop downloading any > data from the vantage, normally after a boot of the pi. I noticed when the > pi was booted, connected to the Internet but no rtc, the pi time would be > the same as when it was shutdown until it got the current time from the > Internet. In this period the vantage would show the time from the pi, which > could be from the previous day. Could this be the issue ? > > I have now fitted an rtc to the Pi and so far so good, but will see how it > goes. > > -- > 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 weewx-user+unsubscr...@googlegroups.com. > To view this discussion visit > https://groups.google.com/d/msgid/weewx-user/7e203cc8-6e23-4f48-b793-112d785a3a02n%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/7e203cc8-6e23-4f48-b793-112d785a3a02n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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 weewx-user+unsubscr...@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/weewx-user/CAPq0zEAv%2BRZ05jYY6%2BhEL7-t%3DnMyzXYZGc2_94Gaoipx97_%3DAw%40mail.gmail.com.
