New answers tagged rtc
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Issue in RTC DS1307 delay when powering off Raspberry PI 4
See https://raspberrypi.stackexchange.com/a/53395/8697
except add the following line to /boot/config.txt
dtoverlay=i2c-rtc,ds1307
DO NOT do ANYTHING else.
Run dtoverlay -h i2c-rtc for documentation.
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