B4R Question how to do MCU real time calculations in B4R ?

[peacemaker]

HI, all

If the device has a real-time clock IC (say, like DS1307), it's known the year = 1...99, month = 1...12, day = 1... 31, hour, min, second.

ULong (4 bytes) 0 - 4,294,967,295 B4R specific.

Unix second timestamp 4294967295 will be ... in 81 years: Sun Feb 07 2106 06:28:15 GMT+0000
For time calculations in seconds it can be enough.

But maybe is there more universal way in B4R to calculate real-time variables ?
How to store the second based timestamps ?

p.s. now i'm trying to calculate the minute based timestamp within 4-byte UInt counter.

 

[candide]

two library can help you in B4R:

Software Real Time Clock : rSoftRtc​

TimeTools : ESPTimetools​

 

[peacemaker]

Thanks for prompt.
But software RTC is not needed as the hardware one is here.

And TimeTools:
1) it requires the Internet connection, is it OK offline ?
2) and again based on UInt timestamp, that is ... not forever in B4R