Mini Keyboard CardKB V1.1 ATmega8A expansion Unit for M5Stack development modules - U035-B

Mini Keyboard CardKB version V1.1 equipped with ATmega8A MCU. Despite its small size of 88 x 54 x 5 mm , it can also be implemented as a fully functional QWERTY keyboard . The CardKB V1.1 keyboard has as many as 50 buttons , arranged in an ergonomic way, thanks to which it is also possible to declare individual combinations . Communication between the modules takes place via the Grove connection cable and the I2C bus included in the set.

Mini Keyboard CardKB V1.1 ATmega8A - Unit expansion module for M5Stack development modules - U035-B.

Arrangement of keyboard buttons.

• Single key press - displays the first value pressed, e.g. if a key with the symbol "Q" is pressed, it will display "q".
• Sym + key - displays the second value pressed on the keyboard, e.g. if the "Sym" key is pressed and then the "Q" key - the "{" symbol will be displayed. If the "Sym" key has been pressed twice, the symbol function will be disabled and each subsequent press will cause the symbols to be displayed.
• Shift + key - displays a capital letter. If the "Shift" key was pressed once and then "Q" was pressed, an uppercase "Q" will be displayed. If the "Shift" key is pressed twice, the shift function will be blocked and any subsequent presses will cause the display of capital letters.
• Fn + key - non-standard combination of function buttons. The third value of the key will be displayed, which can be declared individually.

• Type: mini keyboard
• Version: V1.1
• Built-in MCU chip: ATmega8A
• Number of buttons: 50
• Number of RGB LEDs: 1
• Communication interface: I2C / Grove
• I2C address: 0x5F
• Development platform: Arduino , UlFlow
• Keyboard dimensions: 88 x 54 x 5 mm
• Weight: 18g

• Mini Keyboard CardKB V1.1 ATmega8A - M5Stack U035-B
• Connection cable with Grove connector

Components included in the set.

• Manufacturer's website: M5Stack U035-B
• User Guide
• Sample program code for Arduino IDE
• Sample program code for UlFlow