Karen
About
The Karen PCB is an open design PCB forked from Cordillera, which is based on the Alice PCB.
- STM32F072 controller
- USB Mini connector mounted at the top
- ESD, over voltage, and over current protection circuits
- Dual common cathode diodes instead of single ones
- Backlight, single color
- Fancy "press to reset, hold for bootloader" reset circuit
Dependencies
Symbols and footprints used are from my KiCad library
Disclaimer
I provide this design as a reference for designing similar keyboard layout PCBs. Using them within your projects will require a will to do research of one's own and to learn the workings of them, potentially fixing issues if they exist.
I present the design as-is and as-available, without liability and without any guarantees regarding functionality, as expressed in the license.