M5Stack CardKB Mini Keyboard Programmable Unit V1.1 (MEGA8A)

Product Link

LogoM5Stack CardKB Mini Keyboard Programmable Unit V1.1OpenELAB

Description

CardKB v1.1 is a card-size '50 key' QWERTY keyboard. Adpots ATMega8A as the MCU, communication port I2C, and one 'RGB-LED' indicator.

Features

  • Full-function keyboard, multi-key combination

  • GROVE interface, support UIFlow and Arduino

  • Two Lego compatible holes

Applications

  • Keyboard peripherals for M5Stack Core

Specifications

Resources
Parameter

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

Docs

  • 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.

PinMap

ATMega8A ISPDownload interface Pin foot definition

M5Core(GROVE A)
GPIO22
GPIO21
5V
GND

CardKB

SCL

SDA

5V

GND

Protocol

  • Protocol type I2C

  • I2C Address: 0x5F

/*--------------------------------------------------------------------------------------------------*/
| KEYBOARD REG       | 0x5F
| ------------------------------------------------------------------------------------------------
| keyboard_value_reg[0] 0x5F        |  R |  KEYBOARD VALUE
/*----------------------------------------------------------------------------------------------------

Compatible

PreviousM5Stack Voltage and Amperage MeterNextM5Stack M5Stamp C3 (5pcs)

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