Official reference · ZECTRIX Lab
16-Level Grayscale Demo
Explore full refresh, partial refresh, and true 16-level grayscale on NOTE4.
NOTE4 Devkit · ESP-IDF
ZECTRIX DEVELOPER COMMUNITY
Built by
curious minds.
Small screens, personal possibilities.
Discover what people make with NOTE4 and NOTE4C.
Real devices. Projects from the community.
Made something? Share your buildFind your kind of project.
Replace the firmware, connect your everyday tools, or build something entirely yours.
NOTE4Black & white · 16-gray reference support
NOTE4CBlack, white, red & yellow · Separate firmware
Plugins & syncRequire compatible official NOTE4 firmware and Cloud API access. Not bundled with Devkits.
23 projects
Development-guide reference · LazyYoun
NOTE4C Four-Color Reference
Upload images from your phone or local network and build a four-color gallery.
NOTE4C · 2bp branch
Community · DennisGaida
FourColor Ink
A four-color photo gallery, weather page, and busy-light display, with AP and LAN photo transfer.
NOTE4C · ESP-IDF 6.0 · Bridge for busy-light data
Community · alexclmy / @ytiralugins
Paperwake
Compose weather, calendars, countdowns, and notes locally, then deliver dashboards over your LAN.
NOTE4C · ESP-IDF 6.x · Control Tower (Node.js 20+)
Community · LitoMore / TRMNL
TRMNL for NOTE4C
Bring TRMNL dashboards and custom screens to black, white, red, and yellow e-paper.
NOTE4C N16R8 · TRMNL service
Community · eyaeya
Today Is Friday?
A playful calendar that changes its message through the week, then sleeps between updates.
NOTE4C · Chinese phrases
Community · Zerie55699
TransitInk OS
A glanceable arrival board for Hong Kong buses, minibuses, MTR, and Light Rail.
NOTE4 · Hong Kong · Noncommercial license
Community · mac20777
vibecoding-voice
Press, speak, and send your ideas to Codex or Claude Code while keeping your hands free.
NOTE4 · Desktop companion
Community · LitoMore / TRMNL
TRMNL for NOTE4
Calendars, dashboards, and custom feeds on monochrome e-paper, with scheduled sleep.
NOTE4 N16R8 · TRMNL service
Community · li-wendian
Vocabulary Trainer
Offline flashcards with saved study progress and a daily learning goal.
NOTE4 · Chinese postgraduate English word list
Community · qiujun8023
Slate · Ink Note
A self-hosted photo frame, information dashboard, and voice interface you can adapt.
NOTE4 · Self-hosted backend
Community · MaydayV
vibecoding-plus
A voice remote for coding, with a native Mac companion and Apple Reminders synchronization.
NOTE4 · macOS
Community · LazyYoun
NOTE4 16-Gray Gallery
Display a personal photo library in sixteen shades, with NAS delivery and phone uploads.
Monochrome NOTE4 only · 4BP is not four-color
Community · defia
Calendar Sync
Connect a CalDAV calendar to the tasks on your display.
Official firmware + Cloud API · Python
ZECTRIX project · ZECTRIX Lab
Microsoft To Do Sync
Two-way task synchronization across Microsoft To Do and your NOTE4 devices, with Safe Preview.
Official firmware + Cloud API · macOS · Test version
Community · justinfjx
Apple Reminders Sync
Keep tasks, notes, due dates, and completion status in sync with Apple Reminders.
Official firmware + Cloud API · macOS
Community · xgjia
TickTick Sync
Bring tasks from a TickTick ICS subscription to your e-paper to-do list.
Official firmware + Cloud API · Python · ICS feed
ZECTRIX project · ZECTRIX Lab
Synology Photos Sync
Rediscover photographs from around this date in earlier years, delivered from your NAS.
Official firmware + Cloud API · Synology / Python
Community · BarryBarrywu
Codex Dashboard
Keep quota, reset timing, and recent Codex task activity in sight on your desk.
Official firmware + Cloud API · macOS / Codex
Community · BarryBarrywu
Claude Code HUD
See your current model, context usage, and coding session status away from the terminal.
Official firmware + Cloud API · macOS / Claude Code
Community · kkkdkk
ZECTRIX Control Skill
Let your AI workflow manage devices, push text and images, and organize to-dos.
Official firmware + Cloud API · Python
Community · wanglz111
TickerPaper
Display public crypto-market prices and daily changes in a compact desktop panel.
Official firmware + Cloud API · Python
Community · will-17173
ZECTRIX Desktop
Manage tasks, send images, and extend your display through a desktop plugin library.
Official firmware + Cloud API · macOS / Windows / Linux
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Check each guide for setup, language support, and hardware requirements. NOTE4 and NOTE4C firmware images are not interchangeable. Community projects are maintained by their authors. Some require a companion app or external service.
One display.
Your everyday world.
From the work on your desk to the ideas you want to keep in view. Start with a project, then make it personal.
Explore the developer Wiki
ADD YOUR PROJECT
The next idea
could be yours.
A weekend experiment. A useful plugin. An entirely new firmware. Share what you made and help someone else get started.
- Send your project and a public preview.
- We review its details and compatibility.
- Selected projects join the collection with credit to you.
Questions or larger files?
info@zectrix.com