This firmware goes along with my open-source OLED Watch project. It is written for the PIC24FJ256DA206 and PIC24FJ256GB206, using the XC16 free (or pro) compiler, and MPLAB-X for the IDE.
- Custom RTOS
- Custom graphics library
- Application framework
- Device drivers for connected sensors
- USB HID communications (driver free!)
- It can tell the time!
These were pulled directly from the watch while it was operating!