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Adafruit has formally launched the Kee Boar 2040, a Raspberry Pi RP2040-based keyboard driver for customized builds, which mimics the Arduino Professional Micro pinout — making it a simple drop-in substitute.
First teased by the corporate seven months in the past the Kee Boar 2040, or KB2040, the brand new board is designed to supply a extra highly effective different to the standard microcontroller growth boards that discover their approach into customized keyboard initiatives.
The brand new Kee Board 2040 (KB2040) is designed to place an RP2040 on the coronary heart of your subsequent customized keyboard construct. (📷: Adafruit)
“We combined collectively what we preferred most concerning the SparkFun Professional Micro RP2040 (Qwiic/STEMMA QT I2C port on the top, so good!) and Elite-C (castellated pads & pins for D+ and D-) and our present RP2040 boards (boot button can be utilized for consumer, 8MB QSPI flash, onboard NeoPixel, jumper for skipping the diode/fuse for prime energy RGB LEDs or USB internet hosting),” the corporate explains. “We even obtained it to all match on a 2-layer PCB with 7/7 routing – simply wanted to make the smallest caps and resistors 0402.”
The ensuing board shares the scale and type issue as a SparkFun Professional Micro, although has fewer analog pins obtainable, and consists of 18 general-purpose enter/output (GPIO) pins plus an extra two on the STEMMA QT port — sufficient, Adafruit explains, for a 100-switch keyboard matrix. A USB Sort-C port gives connectivity for information and energy, and just like the RP2040-based Raspberry Pi Pico the board’s pin headers are castellated for non-compulsory floor mounting.
The board breaks out 18 GPIOs, plus an extra two on the STEMMA QT port on the finish. (📷: Adafruit)
The RP2040 at its coronary heart, in the meantime, provides two 32-bit Arm Cortex-M0+ processors and 264kB of RAM, to which Adafruit has added 8MB of SPI flash. It additionally consists of CircuitPython compatibility: “We’re seeing plenty of individuals use CircuitPython for keebs,” the corporate claims, “which is superior!”
The brand new board has been listed on the Adafruit retailer at $8.95, although on the time of writing was displaying as out of inventory.
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