Hi, Good day!
How to enable DS3231 real-time clock in Raspberry Pi 4B? In Raspberry Pi 3B these 2 lines below in the config.txt works. dtparam=i2c_arm=on dtoverlay=i2c-rtc,ds3231 and resolve the dmesg messages below. WARNING: clock lost 8 days WARNING: CHECK AND RESET THE DATE! This system is not always connected to the Internet. Thanks and best regards, Archimedes