In the last7days series on this blog I’ll revisit interesting content from twitter from the last 7 days and I’ll add further comments or responses to feedback which I got. The list will have about 3-5 pieces of content to keep it crisp and I hope you like what you see!

I didn’t have too much content on Twitter last week

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DIY Split Flap Display by Erich Styger

Building an own split-flap display fascinated me always since I especially like the sound of the display, when it’s content changes. In the blog also different variants for the display elements (and their sounds) are evaluated.

Mermaid example diagram

Not sure whether I’ll have the time soon to build on own, but it is anyway a very helpful tutorial on how to do it.

A similar project showed up in my timeline in 2019 at, which seems to have an easier electronics setup.

I am happy to get feedback from you!