Accurate Split-Flap Display Can Be 3D Printed

Split-flap displays are a great, low-power way to display text to a wide audience. Compared to other display technologies like LCDs they only use energy when the characters change, but have fallen …

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Ich glaub ja nicht dran. Aber ein Spaß wird es trotzdem. #ESC2026 #splitflap
cool stuff... Turn Up The Sound! #SplitFlap #chessboard

https://www.reddit.com/r/arduino/comments/1t78d7j/decided_to_build_a_massive_vertical_splitflap/

__www.reddit.com/r/arduino/comments/1t78d7j/decided_to_build_a_massive_vertical_splitflap

H/T @MichaelRoss
@soaproot From Wikipedia: in central and eastern Europe, they were called Pragotrons, after the Czech company that made them. That's an awesome name.
I'll throw on a few hashtags in case there are fans of these things out in the Fediverse: #SplitFlap #SplitFlatDisplay #Pragotron

#OpenSource 💡 Mikaël Mourcia nous parle de son projet coup de cœur du moment

J'adore le bruit d'un #SplitFlap. Ce clac-clac-clac un peu hypnotique... Je n'avais jamais regardé comment ça fonctionnait à l'intérieur. Alors j'en ai construit un, basé sur le projet Open Source de Scott Bezek.

Niveau matériel, rien de fou :
👉 un ESP32
👉 quelques moteurs et capteurs
👉 un fer à souder
👉 beaucoup de patience

Et évidemment, trop tentant de ne pas le brancher à #Canopsis...

🔗 https://github.com/scottbez1

Interactive / immersive 🤿 video documentation of my installation piece "$?L¡† ƒL4? (52x60)"🎰 is now live on my YT channel ✨
https://www.youtube.com/watch?v=8ITdjoaW90k

$?|¡† ƒ|4? (52x60) is an art installation that reinvents the classic “split-flap” display technology, familiar to many from train station arrival and departure boards, in a contemporary and artistic format. The installation creates an imaginative universe where the audience can step inside and let themselves be surrounded by sounds, mechanical movements, and abstract animations. The project explores multimedia experiences at the intersection between the analog and the digital.

idea, composition, puredata programming: Xavier Bonfill
hardware design and production: vertigo
based on an open source project by Scott Bezek
Commissioned by Børnekulturhus A'mar with support from #statenskunstfond (Danish Art Council) & #kodakultur / #danskkomponistforening (Danish Composers Society)
Premiered at Børneklang #klangfestival november 2025

Recorded with a insta360x4 camera and Zoom H8 with ambisonic microphone on November 8, 2025 at Børnekulturhus A'mar in Copenhagen.

For best playback:
- Use a chromium based browser (Vivaldi, Brave, Chrome) or the YouTube app.
- Use headphones (binaural sound).
- Disable "stable volume" to avoid YT's audio compression
- Watch in 4K in order to see the designs on the flaps
- More around and explore the room with your mouse or arrow keys.
- Zoom in with 2 fingers on trackpad (depending on browser)
- The audio is rendered binaurally in real-time and it matches your viewing position :)

#artinstallation #soundartist #soundart #splitflap #mechanicalengineering #composition #experimental #experimentalmusic #puredata #esp32 #opensource #360video #binaural #ambisonic #surround #computercontrolled #analog #generativeart #generativemusic #immersive
Pictures from the premiere of "$?L¡† ƒL4? (52x60)" (aka Split Flap) that took place on Nov 8 at #klangfestival / #børneklang #børnekulturhusamar

idea, composition, programming: Xavier Bonfill
hardware design & production: #vertigo

commissioned by Børnekulturhus A'mar / #bigbangfestival

with kind support from #statenskunstfond & #kodakultur

$?L¡† ƒL4? (52x60) is an installation work that reinvents the classic “split-flap” display technology, familiar to many from train station arrival and departure boards, in a contemporary and artistic format. The installation creates an imaginative universe where the audience can step inside and let themselves be surrounded by sounds, mechanical movements, and abstract animations. The project explores multimedia experiences at the intersection of the analog and the digital.

#installation #installationart #mechanicalmeetsdigital #analog #mechanical #splitflap #puredata #algorithmicart #generativeart #multimedia #digital_art
Getting ready for $?L¡† ƒL4? (52x60) (aka split flap): new installation that premieres this Saturday (Nov 8th) at #børneklang #klangfestival #bornekulturhusamar 🚀

The installation reinvents the classic split-flap technology – familiar from old train stations – and transforms it into a playful universe of sound, movement, and animation. Children and adults can explore a space where technology and art merge, sparking curiosity about the digital and the analogue in beautiful harmony. ✨

The piece is commissioned by Børnekulturhus A'amar / Big Bang Festival and the setup has been developed in collaboration with #vertigo 🤖⚙️

$?L¡† ƒL4? (52x60) runs from 10 to 15h on Saturday, and there's free entrance 🎉

More info:
https://klang.dk/program/b%C3%B8rneklang-x-b%C3%B8rnekulturhus-amar-xavier-bonfill-split-flap

#BørneKlang #BørnekulturhusAmar #KlangFestival #Børnekultur #BørneEvent
#MusikForBørn #SanseligeOplevelser #KreativitetForBørn #LegOgLyd #KunstOgTeknologi #SplitFlap #InteraktivKunst #Lydinstallation #KulturForBørn #FamilieEvent #GratisEvent #FriEntré #AmagerKultur #AmagerØst #KulturpåAmager #installationart #puredata #surround #digitalmeetsanalog

seen today: split-flap train platform displays!
for some reason, the győr and hegyeshalom train stations still have those!

#Trains #SplitFlap #DepartureBoards #PassengerInformation #RailwayStation #MÁV