A Seven-Section Clock with PCB Face


Evidently making your personal clock is one thing of a hacking ceremony of passage. Whereas this addressable LED clock is not my first try at making a DIY timepiece, I am fairly proud of the way it turned out thus far.

This clock options 85 addressable SK6812 LEDs, which type 4 seven-segment digits, with two LEDs per phase. Moreover, a colon accounts for an additional pair of LEDs and the ultimate 27 LEDs type a small matrix show under the numbers. Management is dealt with by an ESP32 WiFi chip mounted to a Wemos S2 mini board, which logs on to my dwelling community to the time robotically through NTP.

What’s maybe probably the most distinctive characteristic of this clock is the twin printed circuit board association. All electronics are mounted on a standard base board, whereas a prime PCB kinds the seen clock face through gaps within the solder masks. A 3D-printed gentle separator between the 2 PCBs retains photons (largely) of their designated zones.

As of now, the clock boots up, will get the time, and shows it in a 24-hour format. It is programmed to vary colours based mostly on whether or not its morning, noon-ish, or afternoon/evening, and in addition makes use of the ESP32’s contact sensitivity to vary colours on-demand. A pseudo-random sample of colours creates a blinkenlights impact on the underside panel.

It is a neat show, however there may be a lot extra I may do with this design. The capacitive inputs current an thrilling variety of prospects, as do the damaged out I/O and LED signaling. Within the subsequent iteration I will use copper, not simply solder masks, to extra successfully block non light-up sections. This undertaking could be getting began, however it’s at the very least in a usable state!


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