this post was submitted on 14 Jul 2026
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cross-posted from: https://lemmy.world/post/49429587

URL for the crowdfunding: https://www.crowdsupply.com/oddly-specific-objects/open-book-touch

Specs:

  • Display: 4.26" e-paper touchscreen, 480 × 800 px, warm + cool frontlight
  • Processor: ESP32-S3 dual-core, Wi-Fi + Bluetooth LE
  • Memory: 16 MB flash, 8 MB PSRAM
  • Formats: EPUB and plain text, no DRM
  • Storage: microSD card slot
  • Interface: USB-C with integrated LiPo charging
  • Dimension: 78 × 120 × 10 mm, about 85 g
  • Open source: MIT-licensed firmware, open hardware (to be released at shipping)

It also has a replaceable 800 mAh battery, I found it cool :)

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[–] Siethron@lemmy.world 7 points 19 hours ago (1 children)

Why did I read that as 150 buttholes?

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[–] lIlIlIlIlIlIl@lemmy.world 17 points 1 day ago (2 children)

I flashed my Kobo and have a pretty similar experience now. Except with a decent size screen.

[–] YoiksAndAway@piefed.zip 14 points 1 day ago (1 children)

I've had a Kobo Clara BW for about 2 years. I use it almost every day and I love it. I think it was about $140 when I bought it. They go for $160 now, but I think the bigger screen makes it a better buy than this e-reader. I love crowd-funded projects, but Kobo is a better option, imho.

[–] NOPper@lemmy.dbzer0.com 2 points 21 hours ago (1 children)

The point of this one is that it's open source. There's a subset of us that find projects like this worth the extra money.

[–] lIlIlIlIlIlIl@lemmy.world 1 points 18 hours ago

Obviously, but the point is if the screen is a postage stamp is this actually moving the needle?

Not sure where this fits nor for whom

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[–] wewbull@feddit.uk 7 points 20 hours ago

I'm looking for an open source ReMarkable alternative. A4 sized preferably. Any options out there?

[–] slickgoat@lemmy.world 3 points 18 hours ago (1 children)

But can you get books to read on it? I suspect that these gadgets will get locked out of the market by the thugs.

[–] partofthevoice@lemmy.zip 3 points 18 hours ago

These gadgets were locked into the market, locked out of everything else. Usually, how these things go, the community version supplies interfaces for downloading content from third parties.

Lock the gadgets out all they want. That’ll only make more interest around having all the popular new books available on platforms that thugs can’t control.

[–] Mystech@lemmy.world 10 points 1 day ago (4 children)

If they are targeting the tiny ebook reader niche, they're going to have to do better on features and pricing than the upcoming refresh of the XTEINK devices.

[–] foggenbooty@lemmy.world 5 points 21 hours ago (1 children)

But XTEINK is actively working to combat the flashing of open source software. It seems they had a spike in sales and interest due to their affordable hardware, but if they continue to lock aftermaket software out tech savvy people will be looking for different options.

[–] 9cpluss@lemmy.world 1 points 17 hours ago (1 children)

Do you have a link to an article or something about that?

[–] foggenbooty@lemmy.world 1 points 12 hours ago (1 children)

I was interested in them but all the listings on AliExpress expressly said they didn't support custom firmware. I started looking into it and it seems to be something theu did after they got popular.

Here's some info, but a lot of it is scattered around online communities: https://pocketink.io/blog/xteink-locked-or-unlocked-buying-guide/

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[–] kkj@lemmy.dbzer0.com 2 points 20 hours ago

They aren't even doing better than the current generation. Their version is more than double the price of the X4 and has the same screen and SoC.

[–] zod000@lemmy.dbzer0.com 4 points 1 day ago

Exactly, I just got a 4" model and it was 1/3 this price and has buttons and also had better open source firmware I could load on it.

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[–] aggelalex@lemmy.world 9 points 1 day ago* (last edited 1 day ago) (3 children)

Okay, but... Isn't pocketbook good enough?

[–] Anivia@feddit.org 5 points 23 hours ago

Pocketbook is great, and runs Linux out of the box. But it's not available globally

[–] MaggiWuerze@feddit.org 1 points 18 hours ago (2 children)

Can I use a pocketbook with my self hosted OPDS server? My wife uses the Onleihe function it offers out of the box, but I would want to connect it to my book server.

[–] aggelalex@lemmy.world 2 points 16 hours ago

I haven't used anything like that, but a quick search brought up this:

https://github.com/j2robin/Pocketbook-OPDSClient

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[–] mesamunefire@piefed.social 5 points 21 hours ago* (last edited 21 hours ago)

If anyone wants to see the old project: https://hackaday.io/project/192688-the-open-book

Its been around for a bit. The newest iteration looks like its trying to be more like kindle.

GH page: https://github.com/joeycastillo/The-Open-Book

I forget where but the developer goes over the cost of the physical hardware a couple of years ago somewhere. Its kinda expensive to make your own open source ebook reader from mostly scratch.

I like this version: https://www.oddlyspecificobjects.com/projects/openbook/

[–] ExcessShiv@lemmy.dbzer0.com 9 points 1 day ago* (last edited 1 day ago) (4 children)

Damn, at 10mm thickness that's a chubby little SOB, nearly twice as fat as my leaf 2. And with a tiny 4.26" screen on top of that, yikes...I love my 7" screen, I'd hate to read on a screen smaller than that.

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[–] mesamunefire@piefed.social 5 points 1 day ago* (last edited 1 day ago) (1 children)

Very similar to https://diptyx.dev/

But its been around longer. Software looks really good for an esp32. Im hoping we see more of these open source ebook readers pop up.

[–] kkj@lemmy.dbzer0.com 2 points 20 hours ago (1 children)

Ooh, I like the clamshell design. Most people seem to use a flip cover for their eReaders anyway, may as well put a screen in it. 3Ah of battery is also a huge upgrade compared to the OP's 800mAh or the XTEink X4's 650mAh.

[–] mesamunefire@piefed.social 1 points 18 hours ago

Nice, glad you like the design. I do too.

I think in theory it would be easier to repair. But it is 250 which is quite a bit.

Ill know in a couple months!

[–] suff@piefed.social 5 points 1 day ago (1 children)

It's DRM-free by design. Any book you want to use in it will need to have it stripped off.

[–] JigglySackles@lemmy.world 4 points 1 day ago

Not a huge fan of the size of the screen, but it seems nice otherwise. I actually appreciate it being a little thicker because I have big hands and gripping thin things hurts after awhile.

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