I found a website
that supposedly makes installing a ds-3231 easy-peasy.? I tried it, and we will see if it worked the next time I visit my shack and have no internet (gps turned off).? The author has two small errors that you? should be aware of.? First,
the ./install.sh is not in the top directory PI-HAT but in the next lower one, "tools"
Second, the command to check the driver installation is missing a "." in front of the forward slash.
Just be aware of this if you cut and paste, like I do.?
In any case, the command reported:
pi@david:~/pi-hats/tools $ ./install.sh -l
rtc_ds1307??? : not installed
rtc_ds3231??? : installed
adc_ads1115?? : not installed