Open-Source E-Paper Ecosystem
A family command center on e-paper
Weather, calendar, AI outfit suggestions, a parent-to-child pager, illustrated e-books, and educational challenges — delivered to e-ink hardware that runs for days on a charge.
The Hardware
Two open-source e-paper devices that work independently or together.
Watchy V3
200 × 200 · 1-bit e-ink · ESP32-S3
An always-on e-ink smartwatch your kid wears. Weather at a glance, today's schedule, pager messages from parents, outfit suggestions, educational challenges, and a full e-book reader — all on the wrist, lasting days on a single charge.
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LilyGo T5 4.7"
960 × 540 · 16-shade grayscale · ESP32-S3
A bedside command center that shows the full day at a glance. Weather, calendar, AI-generated outfit images, and a built-in web app for setup and control. Syncs books and config to the Watchy over Bluetooth.
Get from LilyGoEverything Your Family Needs
The LilyGo is the bedside hub. The Watchy is what your kid wears. Together they cover the whole day.
Weather & Forecast
Current conditions, hourly forecast, and precipitation probability — always visible without pulling out a phone. Both devices update automatically over WiFi.
Family Calendar
Google Calendar integration shows the full day at a glance. School schedule, activities, and parent events — organized by time block with intelligent layout.
AI Outfit Suggestions
Weather-appropriate outfit images generated every morning by AI. Dithered to 1-bit for the watch, rendered in full grayscale on the bedside display.
Parent-to-Child Pager
Send messages from your phone via Home Assistant. Kids reply with one tap from preset options. A walkie-talkie for the family — no phone required.
Educational Challenges
Time-telling quizzes, math problems on a soroban abacus, and knock-knock jokes. Difficulty progression keeps it engaging as skills grow.
Days-Long Battery
E-paper only draws power when updating. Deep sleep between refreshes means days of use on a single charge — the display stays visible even when the battery is dead.
The Bookstore
From text to illustrated e-book in minutes
The Book Workshop is an AI-powered pipeline that turns plain text into beautifully illustrated e-books optimized for e-ink displays. Create books, browse the store, and sync to hardware — or just read in your browser.
Write or Import
Write your own story in the workshop or import from Project Gutenberg's catalog of 70,000+ free books. Paste text, and the AI takes it from there.
AI Illustrates
The pipeline identifies key scenes, generates illustrations with AI, and optimizes every image for e-ink — 1-bit dithering for the watch, 16-shade grayscale for the display.
Read Everywhere
Read in the browser, on the Watchy watch, or on the LilyGo bedside display. BLE sync pushes books and reading progress between devices automatically.
The Platform
Open-source firmware, a cloud portal, and an on-device web app that ties it all together.
On-Device Web App
The LilyGo serves its own web interface over WiFi. Configure calendars, set up school schedules, manage books, and debug — all from your phone's browser, no app install.
BLE Sync
The Watchy and LilyGo coordinate over Bluetooth Low Energy. Config, books, and device state flow between them automatically — and both sync to the cloud portal.
Home Assistant
Pager messages, device telemetry, and automations flow through Home Assistant. Send your kid a message from your phone and get a button-press reply on the watch.
Open Source
Firmware, portal, and build tools are all open source. ESP32-S3 hardware you can flash yourself. Modify anything — the entire stack is yours.