Using the M5Stack PaperMono with ESP32-S3 and e-ink touchscreen, a fridge-magnet shopping list was created that syncs with a smartphone web app via Wi-Fi.
- •An M5Stack PaperMono (ESP32-S3, e-ink touchscreen) was used to implement a fridge-magnet shopping list syncing with a smartphone web app via Wi-Fi.
- •Built with approximately 2,400 lines of C++ code, it operates offline.
- •Development was fully completed using Claude Code, without manually writing the code.