Github says "custom OS", but it's more like "custom UI", it's actually Arduino-based and relies on Arduino libraries for all OS-like functionality.
https://github.com/ashtf8/EinkPDA
Github says "custom OS", but it's more like "custom UI", it's actually Arduino-based and relies on Arduino libraries for all OS-like functionality.
https://github.com/ashtf8/EinkPDA