RTC Calibration about mpy-lib HOT 5 OPEN

Which chip do you use?

from mpy-lib.

I am using OpenMV Camera H7.

What I just want to do is to be able to set the RTC time according to the current time and save it to the back up memory so that when there is power outage, the time will still be accurate since the RTC has a back up battery.

Any idea on how to do this will be appreciated

from mpy-lib.

Which RTC chip do you used with OpenMV Camera H7?

from mpy-lib.

I am using DS3231

from mpy-lib.

DS3231 use registry 10h to calibration RTC (Aging Offset). I didn't implement the calibration function alone, but you can use setReg function to calibration RTC, such as:

ds = DS3231.DS3231(i2c)
ds.setReg(0x10, val)

from mpy-lib.