The problems occur during the startup, before the RPi sets its clock from the Internet, and appear to be issues with the RPi and the Davis equipment disagreeing on the time and getting muddled. It has been the topic of much discussion and you can read the gory details in the wiki. I won't go into the details here. If you have a UPS and rarely reboot, it becomes almost a non-issue.
David On Monday, 18 November 2019 07:32:18 UTC-5, peter wrote: > > Thank you both for your answers, I'm sorry for my ignorance but by RTC you > meant the realtime clock, or? > Maybe I'm wrong but my Pi zero w holds the time quite well. The one I > intend to install for the Vantage station is going to be on the UPS anyway > so no reboots are foreseen (hopefully). > I have a standard RPi 3 working with Vantage Vue for months and also one > with WeatherFlow with no issues. > > I'll definitely check the wiki pages once more (y). > > Thanks. > > Dne ponedeljek, 18. november 2019 13.24.08 UTC+1 je oseba David VE3STI > napisala: >> >> I have been running WeeWX on an RPi Zero W connected to my Davis Vantage >> Vue for a couple of years. It is plenty fast enough for the modest >> processing requirements of WeeWX and can also run a web server for local >> network viewing of data. (I use NGINX.) It is very miserly on power (50-70 >> mA at 5V, as I recall) and has generally been reliable. The RTC issue has >> been an annoyance but I think this affects all RPi models and is not >> specifically a RPi Zero W issue. I eventually solved/avoided the problem >> with a UPS. >> >> Do read the wiki pages. >> >> David >> >> On Monday, 18 November 2019 00:09:47 UTC-5, peter wrote: >>> >>> Does weewx run OK on RPi Zero W? I want to connect a Vantage Envoy to >>> the USB-on-the-go port. >>> 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/9f51353f-9817-4b2e-b391-11d8029d9d18%40googlegroups.com.
