core2key

A compact 40-key typing peripheral for DIY hardware, cyberdecks, Arduino, and ESP32 builds.

$25.00In production

core2key gives custom devices a real, compact keyboard without forcing your project around a full-size desktop peripheral. The keyboard MCU ships preloaded, while your Arduino, ESP32, or other project controller can be programmed around the inputs and behaviors your build needs.

Prototype in production

Ordering is not open yet. Register your email and we’ll let you know when this product becomes available.

SWITCHES40 × 8×8 mm soft

BOARD SIZE93.725 × 55.6 mm

PROJECTSArduino + ESP32

MCUKeyboard firmware preloaded

15-day returns · 6-month limited warranty

HARDWARE SPECIFICS

Compact enough to embed. Large enough to use.

MCU & integration details →

40 × 8×8 mm soft switches for quiet, low-click operation

93.725 mm × 55.6 mm compact board footprint

PRO, GND, 3V3, SDA, and SCL connections exposed on-board

Keyboard MCU ships preloaded — no keyboard firmware flashing required to get started

Designed for Arduino, ESP32, cyberdeck, home-device, and custom-controller projects

Compact enough to embed while keeping the keys reasonably sized and usable

The onboard keyboard MCU is preloaded. Your project controller is where you define the actions, mappings, and behavior for your build. The MCU / Code page is ready for the full firmware documentation and source details as they are finalized.