Attempts to explain how a keyboard matrix works, what "ghosting" and "masking" are, and how to prevent them. It took me a bit to figure this out, partly due to the fact of no really good explanation ...

Use a STM32F407 board to pretend to be a keyboard of an old computer that uses a simple row/column matrix. You connect a PS2 port keyboard to the STM32F407 board. Pressing a key on the PS2 keyboard ...

The world of custom keyboards has over the years developed its work into an art form, as mechanical key switches meet USB-HID capable microcontrollers for a plethora of designs as individual as their ...