Last updated
CardKB v1.1 is a card-size '50 key' QWERTY keyboard. Adpots ATMega8A as the MCU, communication port I2C, and one 'RGB-LED' indicator.
Full-function keyboard, multi-key combination
GROVE interface, support UIFlow and Arduino
Two Lego compatible holes
Keyboard peripherals for M5Stack Core
MCU
ATMega8A
Number of keys
50
RGB LED
1 piece
Communication method
I2C
Net weight
17g
Gross weight
18g
Product Size
88*54*5mm
Package Size
136*92*5mm
Single button pressed, keyboard will output the first key value (the letter button will output in a lower case form). E.g if "Q" was pressed, keyboard will output "q" (lower cased).
Sym+key, keyboard will output the second key value. E.g if "Sym" was pressed and then "Q" was pressed, the keyboard will output "{". If "Sym" was double pressed, then the keyboard will lock this function, all key pressed will output it's second key value.
Shift+key, if a letter button was pressed, it'll output upper case form. E.g if "Shift" was pressed and then "Q" was pressed, the keyboard will output "Q". If "Shift" was double pressed, then the keyboard will lock this function, all letter key pressed will output it's upper case form.
Fn+key(custom function key combination), keyboard will output the third key value. You can customize what function the key presses corresponds to.
ATMega8A ISPDownload interface Pin foot definition
CardKB
SCL
SDA
5V
GND
Protocol type I2C
I2C Address: 0x5F
