M5Stack Keyboard Programmable Unit V1.1 (MEGA8A)

---

Product Link

M5Stack CardKB Mini Keyboard Programmable Unit V1.1OpenELAB

Introduction

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

Specifications

Resources	Parameter
MCU	ATMega8A
Number of keys	50
RGB LED	1 piece
Communication method	I2C
Net weight	17g
Gross weight	18g

Pinout

ATMega8A ISPDownload interface Pin foot definition

M5Core(GROVE A)	GPIO22	GPIO21	5V	GND
CardKB	SCL	SDA	5V	GND

Dimensions

Product Size	88*54*5mm
Package Size	136*92*5mm

How to Use

Arduino

To get the code, please click here

UIFlow

Feature Introduction

Enter information via the keyboard

• Get key Return ASIIC value

• Get string Return character

• Get pressed Detect button, press to return true

Usage

To get the complete code, please click here