[Barzok] has a very minimal clock build. It takes a handful of LED arrays with an integrated driver, an Arduino Nano, a real-time clock module, and a voltage regulator. The software uses a custom ...

This replica uses LEDs driven by an Arduino Nano and a real-time clock. Since the RTC gives hours from 0-23 and minutes and seconds from 0-59, a couple of shift registers and some modulo ...

The Arduino Nano itself is the most basic and oldest of ... they share many technical specifications. They have the same clock speed of 16MHz, SRAM of 2kB, EEPROM of 1kB, and flash memory of ...