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Adafruit KB2040 Kee Boar

AdafruitRP2040

A Pro Micro-shaped board for keyboards with RP2040, featuring 20 GPIO pins, I2C, SPI, and UART.

Manufacturer guide / datasheet
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Specifications

6
Operating Voltage
3.3V logic and power (USB C) or 5V for NeoPixels via RAW pin with jumper removed.
Flash
8 MB SPI FLASH
Ram
264 KB RAM
Gpio Count
20
Dimensions
1.3" x 0.7"
Clock Speed
~125 MHz

Pinout

21
PinNameFunctionsNotes
RAWraw
POWER
For NeoPixels or other 5V devices
Ggnd
GND
Common ground for power and logic
RSTreset
GPIO
Reset pin. Tie to ground to manually reset the board
3Vvcc
POWER
Regulated 3.3V output from onboard regulator
GNDgnd
GND
Common ground for power and logic (bottom edge)
TX/D0tx
UART
Main UART0 TX pin. Also I2C0 SDA, SPI0 MISO, PWM0 A
RX/D1rx
UART
Main UART0 RX pin. Also I2C0 SCL, SPI0 CS, PWM0 B
D2dio2
GPIO
Digital I/O pin 2. Also I2C1 SDA, SPI0 SCK, PWM1 A
D3dio3
GPIO
Digital I/O pin 3. Also I2C1 SCL, SPI0 MOSI, PWM1 B
D4dio4
GPIO
Digital I/O pin 4. Also SPI0 MISO, UART1 TX, I2C0 SDA, PWM2 A
D5dio5
GPIO
Digital I/O pin 5. Also SPI0 CS, UART1 RX, I2C0 SCL, PWM2 B
D6dio6
GPIO
Digital I/O pin 6. Also SPI0 SCK, I2C1 SDA, PWM3 A
D7dio7
GPIO
Digital I/O pin 7. Also SPI0 MOSI, I2C1 SCL, PWM3 B
D8dio8
GPIO
Digital I/O pin 8. Also SPI1 MISO, UART1 TX, I2C0 SDA, PWM4 A
D9dio9
GPIO
Digital I/O pin 9. Also SPI1 CS, UART1 RX, I2C0 SCL, PWM4 B
CLKclk
SPI
Main SPI0 SCK pin. Also I2C1 SDA, PWM1 A
MISOmiso
SPI
Main SPI0 MISO pin. Also UART1 TX, I2C0 SDA, PWM2 A
MOSImosi
SPI
Main SPI0 MOSI pin. Also I2C1 SCL, PWM1 B
D10dio10
GPIO
Digital I/O pin 10. Also SPI1 SCK, I2C1 SDA, PWM5 A
SCL/D13scl
I2C
Main I2C0 SCL pin. Also SPI1 CS, UART0 RX, PWM6 B
SDA/D12sda
I2C
Main I2C0 SDA pin. Also SPI1 MISO, UART0 TX, PWM6 A

Interactive pinout

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