> > So regarding the retain question, is it better to retain or not?
It's not about better, but getting the last message that was sent by a device, which isn't always useful, but can be. On Thu, 9 Jul 2026 at 01:01, [email protected] <[email protected]> wrote: > I preferred the individual topics because my home made weather station > only updates every 3 minutes other than rain and wind which is every 5 > seconds . I didn't want to send the whole kitten kabootle every 5 seconds > so that's why I went that route. So regarding the retain question, is it > better to retain or not? > > On Wednesday, July 8, 2026 at 10:30:00 a.m. UTC-4 Greg Troxel wrote: > >> John Smith <[email protected]> writes: >> >> >> >> >> Perhaps, but it gets complicated. >> > >> > or if any variable was different enough than the last report. >> > >> > >> > This of course made easier by using multiple topics and setting retain >> on >> > published messages. >> > >> > Bonus points for parsing the retained messages on startup. >> >> Yes, but you need a timestamp in the message so that >> >> weewx goes offline (down, network) >> >> MQTT subscriber restarts >> >> doesn't lead to logging (now, old_data). And I don't think anybody does >> this. That's why I don't set retain. >> > -- > 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 visit > https://groups.google.com/d/msgid/weewx-user/0bc80c1e-71d4-4ef6-be4d-ed428826d282n%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/0bc80c1e-71d4-4ef6-be4d-ed428826d282n%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 [email protected]. To view this discussion visit https://groups.google.com/d/msgid/weewx-user/CAGTinV4WJJLHxvbEw9ygVyTvpYJ0%3Db-DEt8eysQVyTzZLGoc0w%40mail.gmail.com.
