HackSpace Magazine Issue 60, page 103, takes a look at the Adafruit KB2040, an RP2040 Kee Board microcontroller board.
The Adafruit KB2040 is a drop-in replacement for a typical Arduino Pro Micro, which happens to be a common part of custom keyboards and controllers. This board allows you to take advantage of its built-in dual core 32-bit Arm Cortex M0+ processors and 264kB of RAM, and 8MB of SPI flash in your next build. With all that power, and the 20 GPIO pins, you can have up to 100-keys matrices. That makes for a great keyboard!
The board also has castellated edges for easily adding it as a daughter board to your PCB, or you can use the STEMMA QT connector and skip the soldering altogether! A few other nice features are the use of a USB-C connector, breakouts for alternative USB connectors if needed, and a colorful little RGB NeoPixel. Head to the Adafruit website to learn more about building your own keyboard with the RP2040 Kee Boar Driver.
The board gets a 10/10, “Another great micro for building a custom keyboard”.
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