31 thoughts on “ Seven Segment Clock Made From Scratch ” ... The Arduino Nano is sacrificial (£2 per unit), and the holes in the USB port were covered with capton tape first.

I just built some large (10x10cm) 7 segment panels, as it was difficult to find the premade kind that large for a reasonable price. They might make a nice clock as well.

Maker Michael Klements has built a unique electromechanical clock using a little Arduino hardware, code, and 28 servos, which tilt panels to reveal the correct time in digital format.

Reddit user Krukerfluk has created an awesome DIY digital clock using 144 x seven segment displays, combining them to create a larger LED display powered by an Arduino Nano.

Here is a simple, yet useful circuit of an Arduino 4-digit 7-segment LED display unit. The module used here is a self-contained, compact common-cathode module containing four 7-segment LED numeric ...

Here, a common cathode 7-segment LED display is connected to Arduino for displaying the digits. The code (Arduino sketch) allows push button increment of the counter from 0 to 9. The whole circuit can ...