nrw.social ist einer von vielen unabhängigen Mastodon-Servern, mit dem du dich im Fediverse beteiligen kannst.
Wir sind eine freundliche Mastodon Instanz aus Nordrhein-Westfalen. Ob NRW'ler oder NRW-Sympathifanten, jeder ist hier willkommen.

Serverstatistik:

2,8 Tsd.
aktive Profile

#ePaper

1 Beitrag1 Beteiligte*r0 Beiträge heute

Wie die Annas KN-E-Paper zu Senioren bringen - Einführung in die Digitale Welt

kn-online.de/lokales/kiel/wie-

Wenn ich das Foto schon sehe, weiß ich, dass das nichts für Senior:innen mit eingeschränktem Sehen ist. #Epaper ist dafür auch nicht geeignet. Die Schrift viel zu klein. Die ganze Idee Papier ins Internet zu transferieren ist dumm. Das ist für Archive ja ganz nett, aber nicht für das tägliche Lesen.

Auf der Touch Taiwan hat Johnson Lee von der E Ink Corporation einen faltbaren und farbigen E-Reader vorgestellt, der von Readmoo produziert wird. Das 8-Zoll-E-Paper-Display wird wie ein Buch zusammengeklappt. Die ersten Demonstrationen der Technik sind stolze 19 Jahre her. Das Unternehmen, das die Technik erfunden hat, existiert aber nicht mehr.

#epaper #eink #ereader #touchtaiwan #display

notebookcheck.com/E-Ink-Faltba

Notebookcheck · E-Ink: Faltbarer und farbiger E-Paper-Reader MooInk V auf der Touch Taiwan präsentiertVon Andreas Sebayang
Antwortete im Thread
So, I made a #pr on #esphome #git #repository to add support to the #waveshare 7,5 inch BWR #epaper display, now let's wait for a review: https://github.com/esphome/esphome/pull/8556/commits/740253762d5c4d79920f5838bd083af435cbb764
I never contributed to esphome, nor to a C project, nor to an #embedded project in general, so I hope my #code is adequate, but I would not be surprised if I need to change something...
Let's see!
Antwortete im Thread
Nice to see the #esphome test card on an #eink display!
The way the colors are mapped is not in my code, but I can see how they make sense: the left part of the R box is a scale of reds clearer of 50% red, the right part are the darker ones. So it is posterized to white and red respectively.
It's interesting how the other colors are mapped to white. I imagine it makes sense, #epaper displays are a completely different beasts from a classic RGB display like an LCD...
Now to the pull request! I'd like my code to go in #mainline esphome!
[continues...]
So, here's my last #rabbithole : I bought an #epaper display to use with #esphome . It's a cheap #waveshare compatible 3 colour #e-ink (BWR, black white and red), the HINK-E075A01. Unfortunately I discovered that the esphome waveshare component supports only the B/W verson.
It works in black&white, but my #display is very slow due to the added red colour, and anyway I hate leaving features on the table...
So I decided to develop a driver, for an OS I barely know (esphome), in a language I barely know (C), for a platform I barely know (ESP32). I expected it to be fun 😅
[continues]

Ich hab eine Idee, aber keine Ahnung: Ich hätte gern einen Anstecker mit E-Ink-Display und Anzeigenwechsel per Knopfdruck. Also ein magnetischer oder ansteckbarer Button, der zwischen mindestens zwei Anzeigen wechseln kann.

Anwendungsbeispiele:
• "Ich nutze WERO" → Knopfdruck → QR-Code zum Bezahlen erscheint
• "Ich nutze Threema/Signal" → Knopfdruck → QR-Code zur Kontaktaufnahme erscheint
• Namensschilder mit wechselbaren Informationen
• Stimmungsanzeiger für nonverbale Kommunikation

Fragen an die #Fediverse-Community:
- Kennst Du ähnliche Projekte?
- Wer könnte so etwas umsetzen?
- Was sind realistische Kosten?
- Fallen Dir weitere Anwendungen ein?
- Welche #Hashtags sollte ich ergänzen oder ändern?

Meine Inspirationquelle:
linkedin.com/posts/timo-heck-9

#Wearables#EInk#WERO

Has everyone noticed?
Here in #Germany almost all #supermarkets use #epaper displays to show prices. They look great. It's hard to notice that it's not ink on dead trees.
That's thousands of displays per shop. Times thousands of shops in the entire country.

Some of those displays break or otherwise get replaced.

So there must be piles of used displays around the country... but where?
Does any of my fellow #hackers know how to get some of that #trash treasure?

Fortgeführter Thread

This #ePaper seems to have 7 internal LUT sets for different temperatures. At 20'C refresh takes 4 secs. By fixing temp sensor to > 50'C, refresh takes 3.5 secs and there's no difference in picture.

I copied this "fast" table and started reducing iterations and frame counts so that picture quality still remains intact.

I've now reached < 1 s refresh, even for the full 648x480 and it still looks very nice. And now it's fast enough for simple #Linux terminal use!

This week's #ePaper #hacking status: Got partial updates working nicely (pixel-wise) on 15€ unbranded 5.83" WFT0583CZ61. It's just as slow as full refresh, but limits flickering to the updated area, like a single 8x16 char, so the other part of the screen remains readable during refresh.

Now I try to make custom LUTs to make it faster. Nice; all registers are documented but no mention about operation principle whatsoever. Typical trial-and-error #Linux driver programming.

Giving this whole (maybe weekly) #LinkDump thing a go (in lieu of [and so far successfully escaping] writing newsletters)

#Networks #Protocols #Privacy

Guide to securing your digital life and protecting your privacy
digital-defense.io

Computer Networks From Scratch
networksfromscratch.com

Obsidian notes about 100s of network concepts/topics
notes.networklessons.com/

Protocols for synchronisable data stores
willowprotocol.org/
earthstar-project.org/
try.st.imu.li/projects/vernode (via @tryst)

Social web translator (HTML, JSON, ActivityStreams, Atom, RSS etc.)
granary.io/

#CollapseComputing #FrugalComputing #VM #ConcatenativeProgramming

The Collapsible Project
wiki.collapsible.systems

CollapseOS & DuskOS
collapseos.org/
duskos.org

tiny-ps — Web component to display PostScript inside HTML
github.com/bellenuit/tiny-ps
belle-nuit.com/my-journey-to-p

#ESP32 #EPaper #Meshtastic

ESP32-S3 w/ 4.7" touchscreen E-paper display
docs.m5stack.com/en/core/paper

Lilygo T5 E-Paper S3 Pro
lilygo.cc/products/t5-e-paper-

Lilygo T-Deck Plus (Meshtastic, GPS, 2000mah battery)
lilygo.cc/products/t-deck-plus

#Art

Community (and partially solar) powered online E-ink art frame
omniframe.art/

Upcoming exhibition @ ZKM Karlsruhe which will also include a custom version of my own DeFrag piece
zkm.de/en/2025/04/the-story-th

Zimoun's sound architectures, installations & sculptures — always an inspiration on many levels...
youtube.com/watch?v=xx4Kx6R7nv

#TechCommentary

Kill the “User”: Musings of a disillusioned technologist
pastagang.cc/blog/kill-the-use

digital-defense.ioDigital Defense - The ultimate personal security checklist to secure your digital lifeThe ultimate personal security checklist to secure your digital life

I made a thing - An e-paper literature clock. The display updates itself once per minute with a quote from a book that contains the current time, see photo for an example.

I hasten to add that this isn't my original idea, many similar projects can be found linked on the Github page.

Anyhoo, if you're interested in building your own, all the information, along with my code (Python) is available on my GitHub presence :

github.com/alexdyas/literature

I've built many other projects, but this is the first time I'm publishing the complete code and documentation publicly, so it's a bit of an experiment. I hope to do so with other projects in the future, and maybe retrospectively with some previous projects.

(Constructive) feedback most welcome :-)

It is based on a raspberry Pi and a Waveshare 3.5" e-paper hat.

I may try an ESP32 version in the future, the Pi is really overkill for such a small project.

Enjoy!

#maker#raspberrypi#epaper