1. Arduino Nano Microcontroller: This small yet powerful microcontroller will be the brain of your clock, handling all the logic and control for the LEDs. 2.

Alarm clocks are cheap and abundant, but they’re pretty boring. If you want to make your own, Instructables user Paranoid Legend shows you how to build one with an Arduino.

You have a timer and clock in just about every single device out there these days, but if you want to build you own, Instructables user GeraldF6 shows you how to do so with a Arduino.

For full instructions on how to build your very own 3D printed marble clock jump over to the official Instructables project page by following the link below. Source: AB : Instructables ...