Image: github.com · The PaperMono on a fridge, showing a shopping list grouped by aisle
Worked Proof shown
PaperMono: an e-ink fridge-magnet shopping list
An M5Stack ESP32-S3 e-ink touchscreen on the fridge, synced with a phone web app.
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Credits
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The full story
PaperMono turns an M5Stack PaperMono (an ESP32-S3 with an e-ink touchscreen) into a fridge-magnet shopping list. It syncs over Wi-Fi with a phone web page served by a small FastAPI server, and it still works offline. The firmware is about 2,400 lines of C++. The Show HN post got 152 points.
How it was done
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From the maker's own write-up or code. We summarise what they report; we haven't tested it ourselves.
- Hacker News: Show HN: PaperMono, e-ink fridge magnet shopping list with mobile web pageRepository account: seamusc
Firmware, server and phone web app.
- Hacker News discussion (152 points)HN submitter: seamus_cPosted
The Show HN discussion (152 points).
- YouTube: PaperMono: How Claude Code Built an Offline E-Ink Fridge AssistantVideo channel: TrendingTechDailyPublished