OpenWatch
An open-source e-paper smartwatch built around the nRF52840, with a custom PCB and a 3D-printed case. Always-on touch display, NFC card emulation, iPhone notifications and music controls, plus Qi wireless charging.
Docs
Build notes, parts and files for each project.
Potato Watch
An ESP32 smartwatch with a custom PCB, a 3D-printed case and an LVGL interface. Built around a touch display, with apps, motion sensing and power-saving modes.
Power supply
A modular DIY power supply in a 3D-printed enclosure, with adjustable voltage and current limits, an LCD and saved profiles.
EsPea32
A compact ESP32-S3 development board with USB-C, battery charging and a fuel gauge, designed to fit on a breadboard.