Topics created by Paulskpt

@flypeek Thank you! Never thought I should look in the 'Lessons' section.

PROBLEM SOLVED At startup : if flag 'power_lost' is True: the external DS3231 is set with pre-determined datetime (adjust by hand) next the built-in RTC is started with the datetime from the DS3231 if the flag 'power_lost is False: the built-in RTC is started with the datetime from the DS3231 During the main loop displaying the datetime from the built-in RTC. I put a short video in the images folder inside the dropbox folder (see the link in my post above).

@ajb2k3 ahh, thank you!

@felmue thank you very much. I go to try that. In the mean time I discovered that the function cardkb_getstring covers more or less what I wanted to achieve.