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. The small Arduino ...

That inspired his most recent project – a digital clock that’s intuitive to use. Many digital clocks work in the same way, in which a digit of the time is set, before another button is pressed ...

Time Slider clock “A digital clock using sliding grids to show or hide the segments of the digits. Each minute the sliders move in a synchronized manner to show the current time.

Just about every electronic device has some silicon semiconductors inside these days—from transistors to diodes to integrated circuits. [Charles] is trying to build a “No-Silicon digital cloc… ...

A digital device like a clock wouldn't typically require that, but possibly it has some additional analog features even if you aren't using them (speaker, line out, etc).