I just got one of these in the mail: http://www.ebay.ca/itm/Hot-Origi ... ry-Pi-/321743549784|
It's a DS3231 RTC expansion module, which uses a supercapacitor, for my LeMaker Banana Pro. I place it on my Banana, fitting it over pins 1,3,5,7 and 9. It gets recognized (in Armbian) and keeps the time when the Banana is shut off. But when I unplug my Banana, the RTC loses its info.
First off, what's the difference between unplugging the Banana Pro and just shutting it down in the OS? In either case all the lights go off... And why would this affect the RTC backup?
I just can't get this RTC to work. Can anyone help?