berlin clock

This object was made in Tinkercad. Edit it online https://www.tinkercad.com/things/hjLomU5QiO8

a pcb layer is sandwiched in the middle to hold the ws2318 leds . A STM32 bleupill keeps the time and sets the display.

Small description; the top square displays seconds, and blinks on/off every second.
2nd row (from the top) squares tells 5 hour blocks.1 block 5 hours, 2 for 10, and 4 for 20.
3rd row is single hours 1 up to 4.
4th row is 5 minute blocks,11 totaling 55 minutes.
5th row is 4 single minute blocks.
it gets intuitive after a few times reading it.
First layers of the display should be printed in white/transparent ;) next layers in a non-transparent color. i printed this 110% size to fit the leds within the squares. the ws2318 are presoldered on mini pcb's.