MetaClockClock V4 for the Year 2021

I had a few of PCBs left over from the V3 MetaClockClock, and originally I planned to finish a build with them by the end of 2020. But as always: things took a bit longer than expected, so I finally finished it today on the first day of the year 2021.

The build uses the same hardware as in the previous V3, but instead of an ‘artistic’ canvas background I decided for a more natural and wood design:

V4 with Walnut Veneer

V4 with Walnut Veneer

It uses a walnut veneer on 3mm MDF and then laser-cut the holes and surrounded it with a pine wood frame.



It is smaller (71.5 x 28 x 5 cm) and includes a total of 24 dual shaft stepper motors with laser-cut PMMA hands (dual and extended version).

extended hands

displaying digits

The PCBs with the RGB LEDs (WS2812B-SIDE) are put into 3D printed enclosures. The clocks snap into the enclosure, and the enclosure itself is attached with two screws to the front panel.

Boards in frame

Boards in frame

Compared to the V3 it is much easier and faster to build and assemble. For the wiring I used pre-configured cables I ordered from Aliexpress.

finished wiring

finished wiring

The back is closed and the whole thing can be hung on the wall, only requiring 5V and optionally the RS-485 interface.

Back of MetaClockClock V4

Back of MetaClockClock V4

Below how it looks:

random colors

random colors

Conway's Game of Life

Conway’s Game of Life

Temperature Display Glow in the Dark

Temperature Display (Glow in the Dark)


18C on display

Happy 2021 🙂

5 thoughts on “MetaClockClock V4 for the Year 2021

  1. Hello Erich,
    Happy New Year to you!
    I really like the design but don’t have any tools/know-how on how to make it myself.
    Is it possible to buy 1 from you?

    Thank you,


    • Hi Ewout,
      This is not something you can buy from me. The point of all the maker things is that you get the idea and motivation, and with the motivation you will learn easily and fast, an with the learning you can build up your skills, know-how and tools and soon you will be able to build something similar yourself too. See for example and pick one you would like to start with. That might be an easier start for you if are not in electronics yet. Just start the journey.
      Happy New Year!


  2. Pingback: MetaClockClock Build Instructions | MCU on Eclipse

  3. Hi Erich!

    Really great build! I am currently investigating your project and code and making up a budget to have it a go.

    For that reason, do you also have the ordering information for the PCB boards you made via PCB Way? For the tinyK22 you uploaded a screenshot on github with those details.
    It would be great if you have similar data for the other boards as well to make sure I do not order boards that will never do the job 🙂

    Thanks a lot!


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