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Moritz

@moritzhaarmann

Always at the limit, somewhere between Software, Hardware and Daycare. Stuttgart/0711.

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08.08.2023
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Latest posts by Moritz @moritzhaarmann

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CDU einen Tag nach der Wahlniederlage in a nutshell

09.03.2026 14:11 πŸ‘ 2961 πŸ” 763 πŸ’¬ 34 πŸ“Œ 17
Split Flap Electronics Beyond Prototypes (WiFi, OTA Updates, Web UI)
Split Flap Electronics Beyond Prototypes (WiFi, OTA Updates, Web UI) YouTube video by flip forward

Took forever to make (next to a dayjob and various kids birthdays), but it feels most β€œcomplete”: Split Flap Electronics Beyond Prototypes (WiFi, OTA Updates, Web UI)
youtu.be/t6H5oJXUC50

27.02.2026 23:07 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I’m also noticing how I’m getting a bit more routined on creating footage and putting it together. It’s tedious but fun.

15.02.2026 22:55 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Removing visual noise in a Split Flap Module (with a tiny 3D Printed part).
Removing visual noise in a Split Flap Module (with a tiny 3D Printed part). YouTube video by flip forward

Not everything in a split flap display should move. Made a video about how to remove a very specific kind of visual artefact:
youtu.be/FqokUeEG4Wg

15.02.2026 22:54 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Are PCBs the better Cables - or how to wire (or not) a Split Flap display.
Are PCBs the better Cables - or how to wire (or not) a Split Flap display. YouTube video by flip forward

One of the parts I’m rather proud of: back panel cabeling. Video on the topic:

Are PCBs the better Cables - or how to wire (or not) a Split Flap display.
youtu.be/buj64WHyjjs

10.02.2026 12:18 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

My latest video has a 100 views.

Slowly saying goodbye to that Dayjob!

09.02.2026 21:19 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
flip forward β€” Virtual Split-Flap Displays Create and control split-flap displays from your browser. Built by a maker, for makers.

Figured I might also ship some code: play.flipforward.de

Probably the best β€ždigitalβ€œ split flap display out there. With sound.

08.02.2026 23:11 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Ja, schon. Die gute Art der Eskalation!

07.02.2026 18:44 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

β€œTest Load”. Zieht definiert viel Strom, wunderbar um die Belastungsgrenzen von irgendwelchen Leitern rauszufinden.

07.02.2026 13:58 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Oh this is gonna be fun.

07.02.2026 13:32 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
What a Split Flap PCB Assembly Actually Looks Like at Home: A walkthrough.
What a Split Flap PCB Assembly Actually Looks Like at Home: A walkthrough. YouTube video by flip forward

There’s a lot of β€žimposter syndromeβ€œ in all of this, a lot of being clearly outside of my comfort zone, outside of my normal domain. Makes me even prouder to have my first β€œtalk over” video done:

What a Split Flap PCB Assembly Actually Looks Like at Home: A walkthrough.
youtu.be/7dRwp-hMpvc

06.02.2026 15:21 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Dazu….joa…

Sehr dΓΌnn

(Aus der Sendung www.ardmediathek.de/video/zur-sa...)

27.01.2026 14:01 πŸ‘ 7 πŸ” 1 πŸ’¬ 0 πŸ“Œ 1

Weiß man was deren Definition von β€žganz normale Leuteβ€œ ist? Hatte mir schon ΓΌberlegt mal anzurufen und zu fragen.

02.02.2026 15:08 πŸ‘ 3 πŸ” 0 πŸ’¬ 3 πŸ“Œ 1
The anatomy of a good flap. – blog.flipforward.de

Came up with this idea of writing more blog posts and being a little less self critical in the process. That also means "going out there" more, but since I average around 5 reader per week, that's still a very safe thing to do. Proud of this one:

blog.flipforward.de/2026/01/28/t...

28.01.2026 22:29 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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It’s like taking a floppy disk and a SSD for a walk. Just not the same pace.

22.01.2026 13:53 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Favorite slomo.

19.01.2026 23:28 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Endurance – blog.flipforward.de

The only test is testing it forever. Wrote about endurance testing split flap modules: blog.flipforward.de/2026/01/19/e....

19.01.2026 22:55 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Hey, if you’re looking for someone with experience in meticulously designing a PCB to notice after everything is done that it won’t fit with the hardware constraints? Happy to chat πŸ˜€

18.01.2026 15:22 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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My favourite city in Asia is DΓΌsseldorf.

14.01.2026 17:08 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Ramen.

Ramen.

DΓΌsseldorf always delivers.

13.01.2026 12:04 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I still insist that there’s no better way to travel than on a train.

13.01.2026 09:51 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Every once in a while I take the train to β€œthe office” in DΓΌsseldorf.

Not a single time has this thing been on time, and while the delays are not something that impact me, it’s mind blowing how casual a whole organisation can be in regards to quality.

It just doesn’t matter.

13.01.2026 09:44 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Muss man sich ja vorstellen wie das wΓ€re, wenn da jemand kommt und einfach den Merz entfΓΌhrt.

…

03.01.2026 12:35 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

So I got myself a new garmin, went for a run and fucking broke my foot.

This has got to be the least lucky purchase I’ve ever made.

13.11.2025 12:30 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Just received an email that my Dutch F1 Sunday ticket got upgraded for the full weekend. I love free stuff.

06.08.2025 21:25 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This is such a mind blowing project!

As a sidetone: You start to appreciate hardware projects so much more when you're building your own.

04.08.2025 20:57 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Paris.

Paris.

Also we’re back from Paris, that city just blows my mind every single time.

29.07.2025 09:27 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
How to build a split flap display. #buildinpublic #splitflap #maker
How to build a split flap display. #buildinpublic #splitflap #maker YouTube video by flip forward

The thing with a first step is: you just have to do it.

Posted something, might regret later: How to build a split flap display. #buildinpublic #splitflap #maker
youtube.com/shorts/EPOdZ...

29.07.2025 09:24 πŸ‘ 6 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Ha, love it!

Yeah I figured that the worst I can do is not do anything, so sharing it is.

23.07.2025 18:56 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0