Volatile RAM. Thinking DS1307 without battery.

Author	Message
twofingers Guru Joined: 02/06/2014 Location: Germany Posts: 1576	Posted: 08:40pm 21 Jan 2025         PhenixRising said   I need to set a flag that persists when I stop and restart (or load) the program but that resets in the event of a power-down. ... Just a reminder: The DS3231 RTC chip has 7 bytes that are actually intended for alarms. These could be used to remember states beyond power off. Michael