Show HN: PaperMono, e-ink fridge magnet shopping list with mobile web page

Category: devtools

Tags: e-paper, esp32, firmware, shopping-list, iot, fastapi

Score: 6.5/10 (Innovation: 6, Technical: 7, Documentation: 8, Utility: 5)

PaperMono Shopping List is a complete firmware for the M5Stack PaperMono e-paper device that turns it into a fridge-mounted shopping list synced with a phone web app via a small FastAPI server. It demonstrates proper e-paper refresh handling, low-power networking, and a usable touch UI, making it a solid reference for ESP32 e-paper projects.

Target audience: embedded developers, IoT enthusiasts, hobbyists

Repository: https://github.com/seamusc/papermono-shopping-list · C++ · GPL-3.0 · 206 stars

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