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submitted 19 hours ago* (last edited 19 hours ago) by FirmDistribution@lemmy.world to c/opensource@lemmy.ml

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 :)

all 29 comments
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[-] lichtmetzger@discuss.tchncs.de 9 points 6 hours ago

The specs are an absolute joke. Even my Sony PRS from 2008 comes with 64MB RAM and physical buttons.

This thing will choke on epubs with embedded fonts, if it doesn't just plainly ignore them (which it seems like it will, since they're talking so much about their own custom font).

Neat idea, but I fear it's destined to fail. I also think it's too small. The PRS-505 is six inches and I wouldn't go any smaller than that for comfortable reading.

[-] SocialistVibes01@lemmy.ml 10 points 7 hours ago* (last edited 7 hours ago)

MIT licenced firmware... Another bunch of libertarian kids who don't know better.

Like they don't know everyone likes buttons, specially page turn buttons,

[-] onwardknave@lemmy.ml 2 points 6 hours ago

I only vaguely remember hearing nerds debating between the GPL licenses and MIT, way back when...What makes the MIT license libertarian?

[-] pineapple@lemmy.ml 2 points 8 hours ago

🏴‍☠️

[-] COASTER1921@lemmy.ml 25 points 15 hours ago* (last edited 15 hours ago)

4" screen and 16MB flash is a joke. Ebooks are small, but not that small. Considering how many used, end of life Kindles there are out there stuck on old easily jailbroken firmware, I don't see why anyone would ever choose this as an alternative. The software for jailbroken Kindles is incredibly mature and at the point of "just works". E-ink technology hasn't progressed much in the past ten years, so you really don't miss out on anything by buying a $30 used one.

Edit: just realized it has micro SD support. So my storage concerns are invalid. It's still incredibly clunky looking though, a 1cm thick device with only a 4" screen sure is something. My eyes probably couldn't handle it even with the largest font.

[-] lichtmetzger@discuss.tchncs.de 3 points 6 hours ago

To be fair, eBooks have just gotten that big in recent years because the publishers are lazy and cram uncompressed embedded fonts into them.

I always strip out embedded fonts from my eBooks with calibre and I have seen books being reduced from 20MB to 400KB. 🤣

This won't make this a good device due to a myriad of other reasons, though.

[-] noodles@slrpnk.net 6 points 12 hours ago

Yeah, definitely think there are use cases for this (look at how popular the xeink X4 has gotten), but a device smaller in most dimensions than modern smartphones isn't gonna make a good general purpose ereader for many people

[-] rljkeimig@lemmy.world 33 points 18 hours ago

I love physical buttons and switches, I don't like an e-reader without page buttons.

[-] TiredTiger@lemmy.ml 15 points 15 hours ago

This. I don't see why "no buttons" is supposed to be appealing? I'd much prefer only buttons, no touchscreen.

[-] racketlauncher831@lemmy.ml 43 points 19 hours ago

Can't be cheap being a crowdfunded product, but not expensive either. The biggest turn-away I can see is the small screen. Most e-ink readers nowadays start at 6". A 4.x" screen will lose a considerable chunk of potential backers.

[-] accideath@feddit.org 22 points 18 hours ago

Yea, the screen makes it an instant turn off for me. Small and low res. Modern e-Readers like the kindle, kobo, etc. have screens basically as sharp as printed paper at a similar size as a book.
And with software like calibre, I don’t really see a reason to switch away from my kindle…

[-] reallyzen@lemmy.ml 6 points 13 hours ago* (last edited 13 hours ago)

I switched to kobo only because kindle - I don't want to be an amazon billboard. I'm 100% calibre too, tho kobo do sell some drm-free ebooks.

My PW 3g was the absolute best ereader ever. Snappy page turns, perfect soft lighting, infinite batteries... funny unlimited worldwide wikipedia. Fuck amazon.

[-] curbstickle@anarchist.nexus 8 points 16 hours ago

Thats the biggest issue for me.

I would carry around something with the thickness of a textbook and a 7+" screen, but under 6" is a nonstarter for me. I'd end up with text so large I'd be reading one sentence at a time.

[-] all4one@lemmy.zip 5 points 12 hours ago

Would I be able to push overdrive/Libby books to this?

[-] XIX@lemmy.world 17 points 17 hours ago
[-] jjlinux@lemmy.zip 5 points 14 hours ago

Yeah, that killed the idea on the spot for me.

[-] tenebrisnox@feddit.uk 11 points 16 hours ago

It looks like a prototype for a circa-2005 ereader. Why is the frame around the screen SO large? Why does the screen look so lo-res? And why is it $150 for the base model?

[-] TiredTiger@lemmy.ml 9 points 15 hours ago

At that price you're better off just buying a Kobo and installing KOReader. I like the idea of it being open source, but a 6" screen is pretty standard these days.

[-] racketlauncher831@lemmy.ml 3 points 6 hours ago

There is a project called Inkbox (renamed to Quill now it appears) which is Linux built with musl libc and Qt on top, that runs on Kobo. Hey, that's open source too! So why yet another open source project with hardware?

https://github.com/Quill-OS/quill

[-] Canuck@sh.itjust.works 5 points 15 hours ago

Low frame rate, black/white e-ink screens are obsolete: https://youtu.be/nHbA2-_qzH4

[-] everett@lemmy.ml 3 points 7 hours ago

Yeah, that's $700.

This is an ebook reader. You don’t need high refresh rate to read books. It’s a waste of power and money.

[-] FirmDistribution@lemmy.world 3 points 14 hours ago

holy shit, this is insane!

[-] traingovroom@lemmy.ml 5 points 15 hours ago

Generally great idea, but the screen size invalidates it for me. Hope they're successful enough to launch a 2nd round with a 6"+ screen

[-] PragmaticOne@lemmy.world 8 points 18 hours ago

The replaceable battery is definitely a requirement for me moving forwards on all new tech I purchase.

[-] bizdelnick@lemmy.ml 7 points 18 hours ago

$150 for ESP32-S3? Are you serious? My first e-book in ~2008 was much more powerful.

[-] flux@lemmy.ml 2 points 17 hours ago

ESP32-S3 seems rather properly sized computing power -wise for this kind of device. And it's quite low-power as well.

Granted there are some tasks where even this kind device could use some computing, like extracting, indexing and rendering pdfs.

[-] freudian_slop@programming.dev 2 points 17 hours ago

If this device supported PDF it would be a no brainer to buy. I understand that the hardware is not good enough for PDFs

this post was submitted on 14 Jul 2026
214 points (100.0% liked)

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