Plausibility check for the date?

[gitpower2017]

The Feature

Plausibility check for the date?

I now had the problem that a single entry was from 1970. This makes the diagram look very strange.
Is there a feature that checks whether the data set matches the previous one? (Timestamp)
There is a flag for the maximum delta water length.

[caco3]

The date of 01.01.1970 is the fallback date if NTP is disabled or no NTP server can be reached. After a cold start (but not on a reboot), the ESP does not yet have any date/time information, thus must fallback to the fall back date/time.

Please check the log of the device. Did you have a power cycle?
If you transmit the data with MQTT or to InfluxDB or so, this should not be an issue.

[gitpower2017]

I was already aware that this date is set after a cold start of Linux systems and that the NTP has not yet set a current date. It makes sense to mark this entry as ERROR if the previous date is more recent.
Perhaps a plausibility check will be added after all.

[caco3]

This has nothing to with Linux. It is n issue of any system without a RTC (Real time Clock) which would keep the clock running even if the device is switched off.