# e-ink

Electronic ink is an electrophoretic material used in Electronic Paper Displays.

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## A Comparison of Five Compact E-Ink Gadgets Designed for Focused Use

DevFeed: [A Comparison of Five Compact E-Ink Gadgets Designed for Focused Use](<https://devfeed.tech/articles/screens-got-louder-these-5-e-ink-gadgets-went-deliberately-quiet-41374.md>)

Original publisher: [Read original article](<https://www.yankodesign.com/2026/09/17/screens-got-louder-these-5-e-ink-gadgets-went-deliberately-quiet/>)

Author: JC Torres

Published: 2026-09-17T09:15:02Z

Content type: comparison

Language: en

Sources: [Yanko Design](<https://devfeed.tech/sources/yanko-design.md>)

Topics: [e-ink](<https://devfeed.tech/topics/e-ink.md>), [touchscreen](<https://devfeed.tech/topics/touchscreen.md>), [Linux](<https://devfeed.tech/topics/linux.md>)

Tags: [boox](<https://devfeed.tech/tags/boox.md>), [e-book-reader](<https://devfeed.tech/tags/e-book-reader.md>), [e-ink](<https://devfeed.tech/tags/e-ink.md>), [e-ink-display](<https://devfeed.tech/tags/e-ink-display.md>), [e-reader](<https://devfeed.tech/tags/e-reader.md>), [gadgets](<https://devfeed.tech/tags/gadgets.md>), [gadgets-lifestyle-technology-boox-e-book-reader-e-ink-e-ink-display-e-reader](<https://devfeed.tech/tags/gadgets-lifestyle-technology-boox-e-book-reader-e-ink-e-ink-display-e-reader.md>), [lifestyle](<https://devfeed.tech/tags/lifestyle.md>), [screen](<https://devfeed.tech/tags/screen.md>), [technology](<https://devfeed.tech/tags/technology.md>), [touchscreen](<https://devfeed.tech/tags/touchscreen.md>)

### AI overview

The article compares five compact E Ink gadgets designed for narrowly defined uses, including the Xteink X4 Classic and BOOX Picco. It highlights their deliberately limited interfaces, portability, and differences in features such as buttons, touchscreens, processors, batteries, storage, and software.

### Source excerpt

Screens Got Louder, These 5 E-Ink Gadgets Went Deliberately Quiet Screens have gotten loud, and most of them are fighting for the same six to eight inches of attention in your pocket. E Ink is...

## ENILINX TICKEY - An ESP32-S3-based color e-Paper badge with open firmware (Crowdfunding)

DevFeed: [ENILINX TICKEY - An ESP32-S3-based color e-Paper badge with open firmware (Crowdfunding)](<https://devfeed.tech/articles/enilinx-tickey-an-esp32-s3-based-color-e-paper-badge-with-open-firmware-crowdfunding-35040.md>)

Original publisher: [Read original article](<https://www.cnx-software.com/2026/09/17/enilinx-tickey-esp32-s3-color-e-paper-badge-with-open-firmware/>)

Author: Debashis Das

Published: 2026-09-17T00:00:34Z

Content type: news

Language: en

Sources: [CNX Software - Embedded Systems News](<https://devfeed.tech/sources/cnx-software-embedded-systems-news.md>)

Topics: [ESP32-S3](<https://devfeed.tech/topics/esp32-s3.md>), [e-ink](<https://devfeed.tech/topics/e-ink.md>), [Microcontroller](<https://devfeed.tech/topics/microcontroller.md>), [Embedded Systems](<https://devfeed.tech/topics/embedded-systems.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>)

Tags: [ble](<https://devfeed.tech/tags/ble.md>), [bluetooth](<https://devfeed.tech/tags/bluetooth.md>), [display](<https://devfeed.tech/tags/display.md>), [e-paper](<https://devfeed.tech/tags/e-paper.md>), [embedded](<https://devfeed.tech/tags/embedded.md>), [embedded-systems](<https://devfeed.tech/tags/embedded-systems.md>), [epaper](<https://devfeed.tech/tags/epaper.md>), [esp32](<https://devfeed.tech/tags/esp32.md>), [esp32-s3](<https://devfeed.tech/tags/esp32-s3.md>), [espressif](<https://devfeed.tech/tags/espressif.md>), [firmware](<https://devfeed.tech/tags/firmware.md>), [hardware](<https://devfeed.tech/tags/hardware.md>), [kickstarter](<https://devfeed.tech/tags/kickstarter.md>), [low-power](<https://devfeed.tech/tags/low-power.md>), [news](<https://devfeed.tech/tags/news.md>), [nfc](<https://devfeed.tech/tags/nfc.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [qr-code](<https://devfeed.tech/tags/qr-code.md>), [screen](<https://devfeed.tech/tags/screen.md>), [video](<https://devfeed.tech/tags/video.md>)

### AI overview

ENILINX has launched the TICKEY, a 3.7-inch color e-paper badge and desk display based on the ESP32-S3. It includes Wi-Fi, Bluetooth, NFC, a rechargeable battery, and support for smartphone updates, with standard and Developer Edition storage options. The company describes the firmware as open source, but no repository or further implementation details were available when the article was written.

### Source excerpt

ENIAC (operating as ENILINX) has launched the TICKEY, a 3.7-inch color e-Paper smart badge and desk display built around an ESP32-S3 MCU. The device features Wi-Fi, Bluetooth, and NFC connectivity, allowing users to update the screen from a smartphone without requiring continuous power to hold a static image. The display uses Modos' color e-paper technology to deliver 48+ native colors, with refresh times as fast as 3 seconds and sunlight readability. Measuring just 3.8mm thick and weighing 45 grams, TICKEY features an aluminum-alloy body and interchangeable faceplates, and supports NFC and QR code-based web profile sharing. The standard version includes 8MB of storage, whereas the Developer Edition offers 128MB for more advanced applications. These features make it suitable for desk reminders, event identification, digital business cards, and interactive maker projects. TICKEY specifications: Wireless MCU - ESP32-S3 Dual-core Tensilica LX7 microcontroller @ up to 240 MHz Wireless - 2.4 GHz 802.11n [...] The post ENILINX TICKEY - An ESP32-S3-based color e-Paper badge with open firmware (Crowdfunding) appeared first on CNX Software - Embedded Systems News.

## The 5 Best Home Office Gadgets of September 2026

DevFeed: [The 5 Best Home Office Gadgets of September 2026](<https://devfeed.tech/articles/the-5-best-home-office-gadgets-of-september-2026-26656.md>)

Original publisher: [Read original article](<https://www.yankodesign.com/2026/09/15/the-5-best-home-office-gadgets-of-september-2026/>)

Author: Srishti Mitra

Published: 2026-09-15T11:40:11Z

Content type: comparison

Language: en

Sources: [Yanko Design](<https://devfeed.tech/sources/yanko-design.md>)

Topics: [Bluetooth](<https://devfeed.tech/topics/bluetooth.md>), [e-ink](<https://devfeed.tech/topics/e-ink.md>), [USB](<https://devfeed.tech/topics/usb.md>)

Tags: [2026](<https://devfeed.tech/tags/2026.md>), [5-best-designs](<https://devfeed.tech/tags/5-best-designs.md>), [battery](<https://devfeed.tech/tags/battery.md>), [best](<https://devfeed.tech/tags/best.md>), [deals](<https://devfeed.tech/tags/deals.md>), [deals-gadgets-office-product-design-shop-5-best-designs-home-office-yd-design-storm-yd-selec](<https://devfeed.tech/tags/deals-gadgets-office-product-design-shop-5-best-designs-home-office-yd-design-storm-yd-selec.md>), [dongle](<https://devfeed.tech/tags/dongle.md>), [e-ink](<https://devfeed.tech/tags/e-ink.md>), [gadgets](<https://devfeed.tech/tags/gadgets.md>), [home-office](<https://devfeed.tech/tags/home-office.md>), [office](<https://devfeed.tech/tags/office.md>), [portable](<https://devfeed.tech/tags/portable.md>), [product-design](<https://devfeed.tech/tags/product-design.md>), [september-2026](<https://devfeed.tech/tags/september-2026.md>), [shop](<https://devfeed.tech/tags/shop.md>), [usb](<https://devfeed.tech/tags/usb.md>), [wireless](<https://devfeed.tech/tags/wireless.md>), [yd-design-storm](<https://devfeed.tech/tags/yd-design-storm.md>), [yd-select](<https://devfeed.tech/tags/yd-select.md>)

### AI overview

A comparison of five home-office gadgets selected for their practical, space-saving designs. The supplied text highlights the OrigamiSwift Mouse, a foldable Bluetooth mouse with USB-C charging and up to three months of battery life, and introduces the Inkleaf Foldable Dual-Screen E-Ink Notebook.

### Source excerpt

The 5 Best Home Office Gadgets of September 2026 The home office has been redesigned more times than anyone can count. Most of those attempts involve cable management trays and monitor arms that take...

## postmarketOS in 2026-01: monthly blog post reboot

DevFeed: [postmarketOS in 2026-01: monthly blog post reboot](<https://devfeed.tech/articles/postmarketos-in-2026-01-monthly-blog-post-reboot-41768.md>)

Original publisher: [Read original article](<https://postmarketos.org/blog/2026/01/25/pmOS-update-2026-01/>)

Published: 2026-01-25T00:00:00Z

Content type: article

Language: en

Sources: [postmarketOS Blog](<https://devfeed.tech/sources/postmarketos-blog.md>)

Topics: [foss](<https://devfeed.tech/topics/foss.md>), [Linux](<https://devfeed.tech/topics/linux.md>), [Mobile](<https://devfeed.tech/topics/mobile.md>), [Kernel](<https://devfeed.tech/topics/kernel.md>), [e-ink](<https://devfeed.tech/topics/e-ink.md>), [Testing](<https://devfeed.tech/topics/testing.md>)

Tags: [2026](<https://devfeed.tech/tags/2026.md>), [blog-post](<https://devfeed.tech/tags/blog-post.md>), [bootloader](<https://devfeed.tech/tags/bootloader.md>), [e-ink](<https://devfeed.tech/tags/e-ink.md>), [fosdem](<https://devfeed.tech/tags/fosdem.md>), [foss](<https://devfeed.tech/tags/foss.md>), [kernel](<https://devfeed.tech/tags/kernel.md>), [linux](<https://devfeed.tech/tags/linux.md>), [mobile](<https://devfeed.tech/tags/mobile.md>), [pinenote](<https://devfeed.tech/tags/pinenote.md>), [postmarketos](<https://devfeed.tech/tags/postmarketos.md>), [team](<https://devfeed.tech/tags/team.md>), [update](<https://devfeed.tech/tags/update.md>)

### AI overview

A postmarketOS update explains the project's new blog format, highlights organizational changes and contributor work, and previews FOSDEM 2026 talks about Linux Mobile, Fairphone kernel support, and reliability. It also covers PineNote and other device, package, kernel, and bootloader contributions.

### Source excerpt

A new year is a good opportunity to reflect on what has worked and what did not, and improve the things that didn't. We did that with the "monthly" blog posts, of which we had published the last one for October 2025. The reason that it took us so long to write these is, that we were trying to link every merge request that got merged since the previous post and write short summaries for most of them. While this results in a very detailed account of what has happened, it became less feasible over time as we had more contributions in postmarketOS. After a good conversation we decided to change the format to talk about the highlights and going into detail sometimes, instead of achieving a complete report of everything that has happened. One major goal of the previous approach was thanking all the amazing people who contributed to the project, but we solved that by just adding the contributor names in the blog post in a separate section. The title image of this blog post was taken at the very inspiring 39C3. If you would like to have some postmarketOS stickers as well, the next chance to get them is FOSDEM 2026 where we will have our own stand again where you can stop by and talk to us about all things postmarketOS! We are also excited to have two talks from postmarketOS team members: Mainline kernel for Fairphones - 2026 update postmarketOS: Reliability in 2026 ...as well as many more postmarketOS and Linux Mobile related talks in the FOSS on Mobile devroom! Organizational Alexey M. stepped down as Trusted Contributor. He has been improving postmarketOS across the whole stack since 2019. Among lots of other things he created libapk-qt and used it to add an apk backend to KDE's Plasma Discover, which eventually found its way upstream. He also improved pmbootstrap, maintained multiple devices and kernels and did a lot of kernel and bootloader work. Thank you very much and all the best for your new endeavours! The PineNote using Sway with hrdl's opinionated configuration. No

## TRMNL

DevFeed: [TRMNL](<https://devfeed.tech/articles/trmnl-36615.md>)

Original publisher: [Read original article](<http://www.imperialviolet.org/2025/07/27/trmnl.html>)

Author: Adam Langley

Published: 2025-07-27T00:00:00Z

Content type: opinion

Language: en

Sources: [ImperialViolet](<https://devfeed.tech/sources/imperialviolet.md>)

Topics: [e-ink](<https://devfeed.tech/topics/e-ink.md>), [Microcontroller](<https://devfeed.tech/topics/microcontroller.md>), [Cloud Run](<https://devfeed.tech/topics/cloud-run.md>), [Go Language](<https://devfeed.tech/topics/go-language.md>), [JSON](<https://devfeed.tech/topics/json.md>), [HTTP](<https://devfeed.tech/topics/http.md>)

Tags: [battery](<https://devfeed.tech/tags/battery.md>), [e-ink](<https://devfeed.tech/tags/e-ink.md>), [firmware](<https://devfeed.tech/tags/firmware.md>), [http](<https://devfeed.tech/tags/http.md>), [program](<https://devfeed.tech/tags/program.md>), [usb](<https://devfeed.tech/tags/usb.md>), [wi-fi](<https://devfeed.tech/tags/wi-fi.md>)

### AI overview

A review of the TRMNL, an 800x600, 1-bit e-ink display powered by a battery and microcontroller. The article describes its firmware and server customization, tile-based display service, Liquid templating, and a Go program on Cloud Run that displays family calendar events. It also notes refresh-scheduling difficulties and the device's relatively high cost.

### Source excerpt

The TRMNL is an 800x600, 1-bit e-ink display connected to a battery and a microcontroller, all housed in a nice but unremarkable plastic case. Because the microcontroller spends the vast majority of the time sleeping, and because e-ink displays don't require power unless they're updating, the battery can last six or more months. It charges over USB-C. When the microcontroller wakes up, it connects to a Wi-Fi network and communicates with a pre-configured server to fetch an 800x600 image to display, and the duration of the next sleep. You can flash your own firmware on the device, or point the standard firmware at a custom server. The company provides an example server, although you can implement the (HTTP-based) protocol in whatever way you wish. I considered running my own server, but thought I would give the easy path a try first to see if it would suffice. The default service lets you split the display into several tiles, and there are a number of pre-built and community-built things that can display in each. None of them worked well for me, but that's okay because you can create your own private ones. They get data either by polling a given URL, or by having data posted to a webhook. The layout is rendered using the Liquid templating system, which I had not used before, but it's reasonably straightforward. I wrote a Go program hosted on Cloud Run which fetches the family shared calendar and converts events from the next week into a JSON format designed to make it trivial to render in the templating system. With a 3D-printed holder, super glue, and some magnets, it's now happily stuck to the fridge where it displays the current date and the family events for the next week. The most awkward part of the default service is managing the refreshes. The device has a sleep schedule, and so do the tiles, which are only updated periodically. So the combination can easily leave the wrong day showing. It would be helpful if the service told you when the device would next up

## Introducing the PineNote

DevFeed: [Introducing the PineNote](<https://devfeed.tech/articles/introducing-the-pinenote-34846.md>)

Original publisher: [Read original article](<https://pine64.org/2021/08/15/introducing-the-pinenote/>)

Published: 2021-08-15T00:00:00Z

Content type: news

Language: en

Sources: [Community blog on PINE64](<https://devfeed.tech/sources/community-blog-on-pine64.md>)

Topics: [e-ink](<https://devfeed.tech/topics/e-ink.md>), [Single Board Computer](<https://devfeed.tech/topics/single-board-computer.md>), [Hardware](<https://devfeed.tech/topics/hardware.md>), [Pinephone](<https://devfeed.tech/topics/pinephone.md>)

Tags: [announcements](<https://devfeed.tech/tags/announcements.md>), [devices](<https://devfeed.tech/tags/devices.md>), [e-ink](<https://devfeed.tech/tags/e-ink.md>), [firmware](<https://devfeed.tech/tags/firmware.md>), [pinedio](<https://devfeed.tech/tags/pinedio.md>), [pinenote](<https://devfeed.tech/tags/pinenote.md>), [pinephone](<https://devfeed.tech/tags/pinephone.md>), [pinetime](<https://devfeed.tech/tags/pinetime.md>), [quartz64](<https://devfeed.tech/tags/quartz64.md>), [release](<https://devfeed.tech/tags/release.md>), [single-board-computer](<https://devfeed.tech/tags/single-board-computer.md>)

### AI overview

PINE64 announces the PineNote, a high-end e-ink device based on the Quartz64 single-board computer, with an RK3566 processor, 4GB of LPDDR4 RAM, 128GB of eMMC storage, a Wacom-compatible panel, and a planned $399 price. The community update also covers PinePhone keyboard production, hardware development, hosting infrastructure, and software updates.

### Source excerpt

This month brings news that many of you have been waiting years for - we're introducing the PineNote, a high-end e-ink device based on the powerful Quartz64 single board computer. But the good news doesn't end here, the PinePhone keyboard has entered production, developers have begun work on PinePhone's back cases, PineDio development is moving forward and we've seen a new firmware release for Pinebook Pro's touchpad. There's a lot of ground to cover this month, so let's get to it. You can watch the synopsis of this month's community update on YouTube (embedded below) as well as on Odysee and PeerTube. To stay up-to-date with PINE64 news make sure to subscribe to this blog (subscription widget at the bottom of the webpage), follow PINE64 Telegram News channel, the announcements channel in Discord as well as our Twitter and Mastodon. I'd like to thank JF, Alex (clover), Dylan (from postmarketOS), Peter (LinMob), Alfred (from UBports), Chris (kop316), Brian (33YN2), gamiee and PizzaLovingNerd for their contributions to this community update. N.B. Comments on the blog post need to be in English and follow our Community Rules and Code of Conduct. Note: This image preview protects your privacy. Click to load the video from the Google servers. Link to the video & Community update video summary by PizzaLovingNerd TL;DR Housekeeping: DHL sent all PinePhones to NZ, so we had to reship all orders (sorry for the delay) Housekeeping: Building a temporary cluster to complete and maintain hosting cluster; build log and updates incoming PineNote: Announcing the PineNote, one of the most powerful devices of its kind on the market PineNote: Quartz64 based; specs include - fast refresh e-ink panel with multiple frontlight settings, RK3566, 4GB LPDDR4 RAM and 128GB eMMC flash storage PineNote: Wacom panel compatible with many EMR pens: we will offer our own PineNote: Available this year for $399; early adopters batch includes EMR pen + magnetic cover (later sold separately) PinePhone

## Plotting patterns in music with a fantasy record player

DevFeed: [Plotting patterns in music with a fantasy record player](<https://devfeed.tech/articles/plotting-patterns-in-music-with-a-fantasy-record-player-21656.md>)

Original publisher: [Read original article](<https://www.windytan.com/2020/12/plotting-patterns-in-music-with-fantasy.html>)

Author: Oona Räisänen (noreply@blogger.com)

Published: 2020-12-08T21:42:00Z

Content type: article

Language: en

Sources: [Oona Räisänen](<https://devfeed.tech/sources/oona-raisanen.md>)

Topics: [Script](<https://devfeed.tech/topics/script.md>), [e-ink](<https://devfeed.tech/topics/e-ink.md>), [3D](<https://devfeed.tech/topics/3d.md>)

Tags: [3d](<https://devfeed.tech/tags/3d.md>), [art](<https://devfeed.tech/tags/art.md>), [audio-media](<https://devfeed.tech/tags/audio-media.md>), [blender](<https://devfeed.tech/tags/blender.md>), [computer](<https://devfeed.tech/tags/computer.md>), [e-ink](<https://devfeed.tech/tags/e-ink.md>), [experiment](<https://devfeed.tech/tags/experiment.md>), [music](<https://devfeed.tech/tags/music.md>), [patterns](<https://devfeed.tech/tags/patterns.md>), [physics](<https://devfeed.tech/tags/physics.md>), [plotting](<https://devfeed.tech/tags/plotting.md>), [script](<https://devfeed.tech/tags/script.md>), [shower-thoughts](<https://devfeed.tech/tags/shower-thoughts.md>), [signal](<https://devfeed.tech/tags/signal.md>), [video](<https://devfeed.tech/tags/video.md>)

### AI overview

The article explores how a vinyl record's wavy surface pattern can reflect the tempo and beat structure of its music. It describes a script that plots FLAC amplitude into a tempo-based grid and discusses clearer patterns in quantized electronic, pop, and rock music, along with a 3D-rendered fantasy record-player experiment.

### Source excerpt

Back in April I bought a vinyl record that had a weird wavy pattern near the outer edge. I though I may have broken it somehow but couldn't even test this because I don't own a record player. *) But when I took a closer look at the pattern it seemed to somehow follow changes in the music. That doesn't look like damage at all. When I played the CD version it became clear: this was an artifact of the tempo of the electronic track (100 bpm) being a multiple of the rotational speed (33 1/3 rpm), and these were probably drum hits! My tweet sparked some interesting discussion and I've been pondering this ever since. Could we plot any song as a loop or grid based on its own tempo and see interesting patterns? (*) I know, it's a little odd. But I have a few unplayed vinyl records waiting for the day that I finally have the proper equipment. By the way, the song was Black Pink by RinneRadio from their wonderful album staRRk. I wrote a little script to do just this: to plot the amplitude of the FLAC into a grid with an adjustable width. The result looks very similar to the pattern on the vinyl surface! Note that this image is a "straightened out" version of the disc surface and it's showing three of those wavy patterns. The top edge corresponds to the outer edge of the vinyl. Later I wrote a little more ambitious plotter that shall be explained soon. Computer-conducted music gives best patterns After plotting several different songs against their own tempo like this it seemed that in addition to electronic music a lot of pop and rock has this type of a pattern, too. The most striking and clear patterns can be seen in music that makes use of drum samples in a quantized time base (aka. a drum machine): the same kick drum sample, for example, repeats four times in each bar, perfectly timed by a computer so that they align in phase. Somewhat similar patterns can be seen in live music that is played to a "click track": each band member hears a common computer-generated time signal