The DS3231 RTC module is the most accurate and reliable real-time clock module to use in your Arduino projects. Unlike low-end timekeeping ICs found in basic timekeeping devices, the Arduino real time ...

Designing a Real-Time Clock (RTC) using an Arduino is a useful project for timekeeping and timestamping in various applications. You can use a dedicated RTC module like the DS3231 or DS1307, which ...

Has something change in how to use system_rtc_mem_write? The following sketch works with the old 1.6.1 release and the serial prints show the rtc byte incrementing, but with the latest code it doesn't ...