RGB LEDs triangular/hexagonal pixels matrix.
Remember the days when you would sit listening to WWV time signals on your shortwave radio (tick, tick, tick…At the tone, the time will be…)
A digital clock completely built from scratch without any coding or microcontroller. Just by using only 74xx and 40xx series digital IC.
This is a 7 Segments counter with arduino
A 3D printed clock driven by a single stepper motor using gears to separate hours, minutes and seconds.
This project uses an ultrasonic sensor to allow a "hand wave" (no touch!) to trigger a series of LED's and the Happy Birthday song twice