CardKB2 Keyboard Unit (ESP32-C61) 42-Key Portable Keyboard Input Unit Powered By ESP32-C61HF4 MCU

CardKB2 Keyboard Unit (ESP32-C61) 42-Key Portable Keyboard Input Unit Powered By ESP32-C61HF4 MCU Description

Unit CardKB2 is a card-sized 42-key portable keyboard input unit. Its compact and form factor makes it ideal for -the-go use and embedded integration.
Powered by an ESP32-C61HF4 MCU with built-in 2.4 GHz Wi-Fi 6 support, the pre-installed firmware allows flexible configuration across four communication modes: I2C, UART, BLE HID, and ESP-NOW.
The unit features an onboard HY2.0-4P expansion interface and a USB Type-C port for power supply and firmware flashing.
Additional hardware includes an RGB LED status indicator, a reset button, and a Boot button. Input power overvoltage protection is also integrated, making this unit well-suited for wireless input, interactive control, and a wide range of portable application scenarios.

Features:
Powered by ESP32-C61HF4 with Wi-Fi 6 / BLE wireless communication support
Full keyboard input with support for multiple key combinations (single press, Sym, Fn)
Onboard RGB LED (XL-1615RGBC-RF) for keyboard status indication
Power Supply: USB Type-C, 5V

Applications:
Text input for portable devices
Human-machine interaction in embedded systems
Wireless control terminal for IoT devices
Educational programming and maker projects

Specifications:
SoC: ESP32-C61HF4 @ RISC-V 32-bit single-core, 120 MHz
Flash: 4MB
Wi-Fi: 2.4 GHz Wi-Fi 6
Keys: 42-key keyboard, 1x Reset button, 1x Boot button
USB Type-C: Power supply / firmware flashing, default firmware log output: 115200bps @ 8N1
RGB LED: 1x RGB LED
Expansion Interface: 1x HY2.0-4P
Standby Power: [email protected] (under Grove interface power supply conditions)
Color: Black
Material: PCB

Package Contents:
1 * CardKB2 Keyboard
1 x HY2.0-4P Grove Cable