21–30 of 193 posts
Hijacking … i have some random e-ink displays (from a bought product)… there seem to be 6 lines to the mcu (or 7, havent measured). Any 2026 tips on approaches to reverse engineer this to run on an arbitrary hobby mcu like esp32? Oh the mcu seems to be a WinnerMicro W100 Series MCU (arm m3)
CrossPoint 1.4.0 came out 2 hours ago: https://github.com/crosspoint-reader/crosspoint-reader/relea...
I skimmed over the project a bit. It seems quite ambitious to aim to reimplement epub, considering that means supporting HTML, CSS, SVG and JavaScript. Is there a ebook format that isn't just build arround the concept of a webbrowser?
A format that only supported
- headings
- paragraphs
- emphasis (bold/italics)
- bullets
- inline images
is good enough. A simple container with a TOC pointing to text blocks/files within it that can be processed very cheaply.
Unfortunately, with something like epub, you lose all the simplicity because you want to support every single feature even if rarely used.
IT IS VERY FRAGILE! The eink screen on my first broke while in my backpack. The company is generous, I bought a new one and they gave 35% off and included all accessories (reading light, case, extra protectors). Highly recommend.
Got the X4. Put CrossPoint on it. Works like a charm. The http server accessible over wifi makes transferring books extremely simple. (Shame on the Kindle for locking everything down.) This is proof-of-concept that a microcontroller is more than enough for something like an e-reader. I have a Kindle and a Kobo. They are sturdy devices. But the X4 is the one that is a genuine e-reader. Would not get it as my one and o…
It's not the best reader I own, but it's the best reader I have on me at any given moment when I'm not laying in bed.
Got the X4. Put CrossPoint on it. Works like a charm. The http server accessible over wifi makes transferring books extremely simple. (Shame on the Kindle for locking everything down.) This is proof-of-concept that a microcontroller is more than enough for something like an e-reader. I have a Kindle and a Kobo. They are sturdy devices. But the X4 is the one that is a genuine e-reader. Would not get it as my one and o…
Will buy the next one if it has a light.
been using on the back of my phone for a few months, my most satisfying hardware purchase in a long time
I've had the X3 for a month and I love it. It's so small I forget it's in my pocket and have almost washed it a couple times. I'm working on custom firmware for it, so I ordered an X4 when they had the 20% off sale to test on there too.
I got one, it's pretty cool that it's small enough to just magnet to the back of your phone. If your someone who needs to use a large font on their ereader to read its certainly not for you, but the screen size is good enough for regular sized text. It's also cool that it's chip is just an ESP32.