Datasheet

Product Features
Full-function keyboard, multi-key combination
GROVE interface, support UIFlow and Arduino
Two Lego compatible holes
Product Size：84.6mm x 54.2mm x 6.5mm
Product weight：20.1g
Include
1x CardKB unit
1x GROVE Cable
Applications
Keyboard peripherals for M5Stack Core
Related Link
Offical Video
Forum
CardKB Firmware
EasyLoader
M5Stack Docs