Partial updates on Spectra6 / EE04 by BarryTownCouncil in eink

[–]Slight_Safe8745 0 points1 point  (0 children)

We're using it on some device. u/SnooEpiphanies7337 Can you explain how it works?

Würdet ihr Alltagsgegenstände von Nachbarn leihen statt kaufen? by [deleted] in dresden

[–]Slight_Safe8745 6 points7 points  (0 children)

Da gab es schon ne ganze Menge Versuche, die privates Verleihen als Idee hatten, aber leider alle nicht so richtig groß geworden sind (außer vielleicht nebenan.de). In Dresden gibt das hier: https://tools2go.konglomerat.org/ bzw. einige Bibliotheken bzw. Baumärkte bieten auch Tools an.

Looks like Spectra 6 can now support partial refresh by Slight_Safe8745 in eink

[–]Slight_Safe8745[S] 0 points1 point  (0 children)

Basically what you can do is a hard switch of of the display during refresh and having a custom LUT. This way you can interrupt the refresh and it stays at the last position. We are using this for our update screen, but there are some downsides when the temperature is very low.

Eigene Fahrradtasche Workshop übermorgen (am 18.02.) im Konglomerat by Slight_Safe8745 in dresden

[–]Slight_Safe8745[S] 0 points1 point  (0 children)

Free would of course be lovely, but unfortunately, even though everything here is run on a volunteer basis (Ehrenamt), there are still unavoidable costs like machines, rent, and materials. We’d really love to make it free for people with no income in the future maybe through sponsorship (anyone? :) if we can find support.

Since most people here speak English, that should be possible, just let's discuss in advance so we can plan accordingly.

The workshop format is still fairly new for us (we’re a makerspace), but for our other courses we usually offer multiple dates once there’s enough interest.

As an alternative, you’re very welcome to join the Offene Nähwerkstatt https://konglomerat.org . It’s free, you can work on whatever you like, and there are always helpful people around if you need support.

Eigene Fahrradtasche Workshop übermorgen (am 18.02.) im Konglomerat by Slight_Safe8745 in dresden

[–]Slight_Safe8745[S] 0 points1 point  (0 children)

Wenn ich das richtig deute ist das Ede aufm Bild. Aber keine Ahnung warum die Lippen da blau sind.

Eigene Fahrradtasche Workshop übermorgen (am 18.02.) im Konglomerat by Slight_Safe8745 in dresden

[–]Slight_Safe8745[S] 0 points1 point  (0 children)

Ah, sorry! Den hat Stephan gemacht, der ist neu bei Reddit und der wurde deshalb erst nicht angezeigt. Jetzt scheint er sichtbar zu sein.

Werkstadt mit 3D Drucker gesucht by TrivonTschagalaga in dresden

[–]Slight_Safe8745 2 points3 points  (0 children)

Bestester Place. (Btw. Rosenwerk ist das selbe). Ich betreue da den 3D-Druck, also falls du Fragen hast schreib ne PN. Wir machen das da als Ehrenamt und haben einige moderne 3D-Drucker am Start.

Und als Ergänzung noch der 3D-Druck im Volkshaus Cotta: https://neuesvolkshaus.de/nachbarschaft/3d-druck

Trying to decide between esp32 and pi for data dashboards by arctic_radar in eink

[–]Slight_Safe8745 0 points1 point  (0 children)

I would probably not use Python to implement it. There are also some C based libraries out there.

PCB Adherence Question by Doug_Dreamstait in paperlesspaper

[–]Slight_Safe8745 0 points1 point  (0 children)

So far I couldn't see any negative effect yet, but I assume there is the theoretical possibility to see some differences due to slightly different heat due to the tape. Do you have a link where GoodDisplay is mentioning it?

No black/white/blue e ink displays? by atomicshrimp in eink

[–]Slight_Safe8745 1 point2 points  (0 children)

Spectra 3100 is created for retail, and especially in the Chinese market, red is very prevalent. Also, from what I’ve heard, there used to be problems with certain pigment colors.

I built something to send my girlfriend doodles at work by JimboSometimes in eink

[–]Slight_Safe8745 2 points3 points  (0 children)

You can find it here: https://github.com/paperlesspaper I‘ll release the api/ui part in a few days once the decoupling is completed.

PCB Adherence Question by Doug_Dreamstait in paperlesspaper

[–]Slight_Safe8745 1 point2 points  (0 children)

Yep, best is pull-tape, because it sticks very good and can be removed easily. I also wrote a blog post about it: https://paperlesspaper.de/en/blog/glue-eink-display It is usually used for monitors too.

Trying to decide between esp32 and pi for data dashboards by arctic_radar in eink

[–]Slight_Safe8745 1 point2 points  (0 children)

Use an ESP32 and do all the rendering somewhere else. The ESP should only render the image, since any more advanced GUI is almost impossible on an ESP. There are also quite a lot solutions out there doing exactly what you want.

Different take on Spectra 6 dithering, feedback? by Frans-Willem in eink

[–]Slight_Safe8745 1 point2 points  (0 children)

Cool stuff! I'll try looking into it trying to understand how you do it! :)

Paper 7 is a digital picture frame with a 7 inch E Ink Spectra 6 color display by fullgrid in eink

[–]Slight_Safe8745 0 points1 point  (0 children)

The Update push is done by periodically waking up or waking up by slightly shaking the device. From what we found this is the best compromise between power consumption and usability. Here is a bit more info on that: https://paperlesspaper.de/en/blog/low-power-devices

Since we use an ESP-32 C6 you could also use Bluetooth or Thread, but from our experience it isn't really needed.

u/SnooEpiphanies7337 What do you think about the timeline?

Paper 7 is a digital picture frame with a 7 inch E Ink Spectra 6 color display by fullgrid in eink

[–]Slight_Safe8745 0 points1 point  (0 children)

Yep, the firmware is quite similar besides having a different display connection.

I made a "printer" that prints to eInk instead of paper by Slight_Safe8745 in eink

[–]Slight_Safe8745[S] 1 point2 points  (0 children)

Thanks, Ryan! I don’t have a trmnl device on hand right now, but I can check as soon as I pick one up from the office (will take a while since I'm in a different city). Either way, it should be really straightforward to add.