{"product_id":"m5stack-cardkb2-keyboard-unit-esp32-c61","title":"M5Stack CardKB2 Keyboard Unit","description":"\u003cp\u003eThe \u003ca href=\"\/collections\/m5stack\" title=\"M5Stack Products\"\u003eM5Stack\u003c\/a\u003e Unit CardKB2 is a compact, \u003cstrong\u003ecard-sized keyboard module\u003c\/strong\u003e designed for portable input and embedded applications.\u003c\/p\u003e\n\u003cp\u003eIt features \u003cstrong\u003e42 keys\u003c\/strong\u003e in a lightweight form factor, making it suitable for on-the-go use or integration into custom hardware projects. The unit is powered by an \u003cstrong\u003eESP32-C61HF4 microcontroller\u003c\/strong\u003e with built-in \u003cstrong\u003e2.4GHz Wi-Fi 6\u003c\/strong\u003e, enabling both wired and wireless communication options.\u003c\/p\u003e\n\u003cp\u003ePre-installed firmware supports four communication modes - \u003cstrong\u003eI2C, UART, BLE HID, and ESP-NOW\u003c\/strong\u003e - allowing it to be used in a wide range of setups, from direct microcontroller input to wireless control interfaces. The board includes an \u003cstrong\u003eHY2.0-4P expansion connector\u003c\/strong\u003e for easy integration with compatible systems, along with a \u003cstrong\u003eUSB-C port for power\u003c\/strong\u003e and firmware updates.\u003c\/p\u003e\n\u003cp\u003eAdditional features include an RGB \u003cstrong\u003eLED for status indication\u003c\/strong\u003e, dedicated Reset and Boot buttons, and built-in input overvoltage protection to help safeguard the device during use.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/AuOel6Qv_5o?si=xEITL_1ODAKpxBh3\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePowered by ESP32-C61HF4 with Wi-Fi 6 \/ BLE wireless communication support\u003c\/li\u003e\n\u003cli\u003eFull keyboard input with support for multiple key combinations (single press, Sym, Fn)\u003c\/li\u003e\n\u003cli\u003eOnboard RGB LED (XL-1615RGBC-RF) for keyboard status indication\u003c\/li\u003e\n\u003cli\u003ePower Supply:\n\u003cul\u003e\n\u003cli\u003eUSB Type-C\u003c\/li\u003e\n\u003cli\u003eDC 5V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eESP32-C61HF4 @ RISC-V 32-bit single-core, 120 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlash\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWi-Fi\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.4 GHz Wi-Fi 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKeys\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e42-key keyboard, 1x Reset button, 1x Boot button\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUSB Type-C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePower supply \/ firmware flashing, default firmware log output: 115200bps @ 8N1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRGB LED\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1x RGB LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExpansion Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1x HY2.0-4P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandby Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V@19.31mA (under Grove interface power supply conditions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e84.7 x 54.3 x 1.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22.4g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/docs.m5stack.com\/en\/unit\/Unit_CardKB2\" rel=\"noopener\" title=\"Product Documentation\" target=\"_blank\"\u003eProduct Documentation\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x M5Stack CardKB2 Keyboard Unit (ESP32-C61)\u003c\/li\u003e\n\u003cli\u003e1x HY2.0-4P Grove Cable (20cm)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"M5Stack","offers":[{"title":"Default Title","offer_id":55536285516161,"sku":"U215","price":9.6,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0176\/3274\/files\/m5stack-cardkb2-keyboard-unit-m5stack-u215-1232575579.jpg?v=1776358270","url":"https:\/\/thepihut.com\/products\/m5stack-cardkb2-keyboard-unit-esp32-c61","provider":"The Pi Hut","version":"1.0","type":"link"}