The fine folks at Adafruit have just designed a new RP2040-based development board that is perfect for custom keyboard builds, the KB2040.
To many people, computer keyboards are appliances and nothing more — like a toaster or an alarm clock. But there are a lot of us who take our keyboards very seriously. We care about the feel of our key switches and the layout of the keys. To accommodate our tastes, we can either purchase a purpose-built mechanical keyboard or build one ourselves. If you want to go the latter route, then you will need a microcontroller to monitor your keyboard matrix and send key presses to your computer. To make the new RP2040 microcontroller accessible to keyboard builders, Adafruit has designed a new development board with the Arduino Pro Micro form factor.
