I’ve been working on this project for the last couple of months. It is an e-paper screen smartwatch based on the LILYGO T-Wrist E-Paper ESP32 development board. It’s running custom smartwatch firmware I’ve dubbed “qpaperOS” which utilizes the espressif-esp32-arduino framework. The firmware isn’t complete yet but basic features such as fetching time via NTP and displaying it works. To have the best battery life, the ESP32 is mostly kept in deep sleep mode and wakes up every minute to update the display. The case of the smartwatch is also designed by me in FreeCAD and is fully 3D printable. For the final version of the watch (the one in the picture) I’ve ordered UTR-8100 resin 3D prints from PCBWay and it looks absolutely gorgeous.
You can learn more about the project on the Github repo (you can also drop a star if you want :D)
Hello r/electronics community!
I’ve been working on this project for the last couple of months. It is an e-paper screen smartwatch based on the LILYGO T-Wrist E-Paper ESP32 development board. It’s running custom smartwatch firmware I’ve dubbed “qpaperOS” which utilizes the espressif-esp32-arduino framework. The firmware isn’t complete yet but basic features such as fetching time via NTP and displaying it works. To have the best battery life, the ESP32 is mostly kept in deep sleep mode and wakes up every minute to update the display. The case of the smartwatch is also designed by me in FreeCAD and is fully 3D printable. For the final version of the watch (the one in the picture) I’ve ordered UTR-8100 resin 3D prints from PCBWay and it looks absolutely gorgeous.
You can learn more about the project on the Github repo (you can also drop a star if you want :D)
Github repo: [https://github.com/qewer33/qpaperOS](https://github.com/qewer33/qpaperOS)
More photos: [https://github.com/qewer33/qpaperOS/tree/main/assets/photos](https://github.com/qewer33/qpaperOS/tree/main/assets/photos)
How long battery life are you able to achieve like this?