{"title":"Adafruit KB2040 - RP2040 Kee Boar Driver","handle":"adafruit-kb2040-rp2040-kee-boar-driver","url":"/products/adafruit-kb2040-rp2040-kee-boar-driver","description":"The Adafruit KB2040 is an RP2040-powered board designed specifically for mechanical keyboard builds, in the Arduino Pro Micro form factor. With castellated pads, USB-C, 8 MB of Flash, and a STEMMA QT / Qwiic connector, it's a drop-in replacement for Pro Micro boards with significantly more power and storage.\n\nFeaturing 20 GPIO pins (18 on castellated pads plus 2 on the STEMMA QT port), the KB2040 easily supports up to 100-key matrices or common 65% 5×15 keyboard layouts. It runs CircuitPython, MicroPython, or C/C++ via the Pico SDK, with a built-in UF2 bootloader for drag-and-drop firmware flashing.\n\nKey Features\n\n\nPro Micro Form Factor – 1.3\" × 0.7\" with near-identical pinout; castellated pads for direct soldering\n\nRP2040 Dual-Core Cortex M0+ – 125 MHz, 264 KB RAM\n\n8 MB SPI Flash – Generous storage for CircuitPython, KMK, or custom firmware\n\nUSB-C Connector – Modern connection with built-in ROM UF2 bootloader\n\n20 GPIO Pins – 18 on pads + 2 via STEMMA QT; 4× ADC, 16× PWM, 2× I2C, 2× SPI, 2× UART\n\nSTEMMA QT / Qwiic Connector – End-mounted I2C port for plug-and-play accessories or extra GPIO\n\nD+ and D− Breakouts – Extra USB data pins for alternative connection options\n\nRAW Power Output – 5V output for NeoPixels; jumper to bypass 500 mA fuse for up to 2A\n\nRGB NeoPixel – Onboard addressable LED for status indication\n\nReset & Boot Buttons – Boot button doubles as user input GPIO\n\n\nIdeal For\n\nCustom mechanical keyboard builds (up to 100-key matrices)\nDrop-in Pro Micro replacement with RP2040 power\nCircuitPython and KMK keyboard firmware projects\nCompact RP2040 projects needing castellated pads and USB-C\n\n\nPackage Contents\n\n1× Adafruit KB2040 (RP2040 Kee Boar Driver)\n\n\nResources\n\nAdafruit KB2040 Guide\nCircuitPython for KB2040\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":3021,"title":"Default Title","sku":"AF-5302","price":18.9,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":107,"option1":"Default Title"}]}