Thanks for the help. 1) l found a udev rule, 60-weewx.rules. l didn't write it so assume the installation did. I don't know why it didn't show up as /dev/vantage earlier but working now.
2) The Pi having incorrect time and date at boot seems to be the issue, l have seen no issues so far after installing an rtc. It appears to corrupt the vantage pro2 logger which l can only solve by clearing the memory, which results in lost data. Where do l find the log ? I found a reference to /var/log/syslog but can't find any relevant log. I have set debug=1 in the conf. Overall l find weewx very good and hopefully can get rid of my old PC with weatherlink. Thanks On Saturday, 24 May 2025 at 19:33:45 UTC+1 Tom Keffer wrote: > 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 <trai...@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+...@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/0da64b7f-85f8-4c05-bb36-a933fdbe468en%40googlegroups.com.