Custom NTP Server

[VladimirV01]

Problem
After flashing the device with version 1.1.1 I have the logs full of failed NTP syncs. This is expected because the WLAN network I use for IoT Devices does not have access to internet.

Proposed solution
I would like to have an option for configuring a custom IP/domain for NTP server. In my case the router acts as an NTP for my IoT WLAN but I have no way to configure it's IP in the device.

Alternatives
Just ignore the logs and rely on the RTC module to retain the clock once it was set manually.

Additional context
No additional context.

[21cncstudio]

For now, you can disable NTP sync from the Time and Date screen on the device — this will stop the error logs and rely solely on the RTC module.
I'll consider adding a custom NTP server option in a future update. It's a reasonable request for isolated networks.

[VladimirV01]

Thank you very much for considering this option.

PS: Great product, by the way! I was procrastinating about making/buying an air quality sensor for a while and you solved this problem.

[21cncstudio]

Thanks for the kind words!

[MadMouse]

Hi @VladimirV01

Having fun with the product, I am suffering the same issue.

I am looking at implementing and testing following options on my branch and was curious to see if they would address some of your your issues.

All options needs to have updates to Aura pages, @21cncstudio as the pages where generated I am not sure how best to implement this without losing the changes when ui is updated using the tool.

Option 1
Adding a time sync button to HA, This would update the Aura RTC with the HA Time.
This wouldn't be as accurate as NTP but would bring the sensors data in will be close to the HA server.

Option 2
Aura will send a command to HA to request time and then add it to RTC, again there will be latency.

Option 3
Add custom NTP server settings page to Aura.

[jakecovert]

Do you have DHCP option 42 (defining NTP) set?

[VladimirV01]

Do you have DHCP option 42 (defining NTP) set?

Hello @jakecovert

Yes, I do have the NTP configured in the DHCP server.

[21cncstudio]

Implemented in main.
b06160b

There is now a separate Time Sync card in the web dashboard under System, with:
Auto Sync (NTP)
NTP Server

Behavior is simple:
leave NTP Server empty to use the default public NTP servers
set NTP Server to a custom hostname or local IP to use your own server instead
If anyone from #45 is able to test this in a restricted/local-network setup, please give it a try and report back how it works in practice.