Three-zone clock tells time in style

Although the deadline for saying "Happy New Year" is somewhere around today, there is still plenty of time to reminisce about 2022 and all that we have achieved. Hackaday alum [Jeremy Cook] has spent much of the last year designing and building a three-zone PCB clock, dubbed the 742 clock. It's called that because of all 7 segments, then 42 from the height in millimeters of each PCB. Also because it's 24 backwards, and if we can be so bold, because 42.

If this sounds familiar, that's because we covered the single-panel version a few months ago. Just like this, the triple time zone clock is controlled by a single Wemos D1 mini, and the other two panels are daisy-chained to the main board. This version has a 20/20 extrusion frame with cute 3D printed end caps to finish the look.

As with the single panel clock, this one uses bared-FR4 PCBs to diffuse the LEDs, and the effect is really nice. We particularly like the capacitive corners that control the clock and the colors, which change throughout the day when left to their own devices. Be sure to watch the build video after the break.

Do you really like LEDs? Consider building a Berlin clock.