Setting time from GPS not working

[quantenschaum]

Setting time from GPS not working

[free-x]

The heart of OpenPlotter is SignalK. You should rather use the corresponding SignalK plugin
https://github.com/SignalK/set-system-time

[free-x]

P.S. settime.sh is a part of avnav-raspi package, which is not for OpenPlotter available ( only for AvNav Images)

[quantenschaum]

OK, why? The settings could be available on OP but disabled by default.

I started with OP because it contains SK and AvNav, to try them out and are now "stuck" on it with the o-charts. But I have to say, I do not like SK, the idea is good, but AvNav is much more usable.

[wellenvogel]

Most probably I should be more clear in the docs for that part.
On OpenPlotter we consider SignalK to be the main data handler.
On AvNav images this is AvNav.
And as OP/SignalK have their own handling of system time we do not want AvNav to interfere with it.
At the end it's not enough to set the system time - you potentially need to restart some services.
If you still want AvNav to set the system time you can copy the script from the avnav-raspi package and configure it as settime command.

[quantenschaum]

configure it as settime command.

OK, but how, the settings are not present? - But I can also let SK to this.

[wellenvogel]

I would recommend to go with the SignalK approach - it's more natural for OpenPlotter. But at the end I'm not sure if it will handle all services correctly (mdns/avahi does not like setting the system time...).

If you really would like to use AvNav, you must configure the settimecmd at AVNConfig (https://www.wellenvogel.net/software/avnav/docs/hints/configfile.html) - can only be done directly in the xml as it is not intended for "normal" users ;-) - (you can use the update plugin to edit the xml).
Afterwards you will see all the other configs.
The command from avnav-raspi: https://github.com/wellenvogel/avnav/blob/master/raspberry/settime.sh

[quantenschaum]

OK, after setting

<AVNConfig expiryTime="10.0" settimecmd="foo"/>

the other config options did appear, the settimecmd option itself is not available, though.

BTW, what is avahi used for? Are there devices that auto discover AvNav?

[wellenvogel]

Yes, settimecmd will never be visible in the UI - as I wrote.
Avahi:
Sure - refer to the docs.
Especially BonjourBrowser.
But also other devices can use this (like my m5 - esp32 stuff).