DS3231 RTC 11 Articles . ... Under the wood, there are a pair of Arduino Nanos, an mp3 decoder board, and an RTC module. Why two Nanos, you ask? Well, the IR interrupts kept, ...

Posted in Arduino Hacks, clock hacks Tagged clock, DS3231 RTC, led matrix, lego, LEGO clock, real time clock Unique Clock Keeps Time The Fibonacci Way July 10, 2019 by Dan Maloney 9 Comments ...

The light sensor also doubles as a button where you can select which animation you want to use to display the time. The clock is powered by an Arduino nano and it uses a ds3231 RTC to keep the ...