Building a split mechanical keyboard with a Raspberry Pi Zero controller - Raspberry Pi
Buy Raspberry Pi Pico – MCU / Controllers for RP2040 Keyboard (1 controller) - beekeeb
Ben S on X: "Built it using two #RaspberryPi pico dev boards. One acts as a USB HID keyboard device for the computer and one acts as a USB host to read
Sekigon Gonnoc Unlocks a Second USB Port on the Raspberry Pi RP2040, Using PIO State Machines - Hackster.io
PICOmputer connects Raspberry Pi Pico to QWERTY keyboard, display, and optional LoRa module - CNX Software
Connecting old retro keyboards to USB with a cheap Raspberry PI PICO for MiSTerFPGA cores. - YouTube
GitHub - No0ne/ps2pico: USB keyboard to PS/2 / AT / XT interface converter using a Raspberry Pi Pico
Amazon.com: Bicool, Raspberry Pi Pico with Pre-Soldered Header Microcontroller Mini Development Board Based on Raspberry Pi RP2040 Chip,Dual-Core ARM Cortex M0+ Processor, Flexible Clock Running up to 133 MHz, Raspberry Pi Pico
BLOG - Raspberry Pi Pico USB Arrow Keyboard Example — Casey J Scalf
GitHub - No0ne/ps2pico: USB keyboard to PS/2 / AT / XT interface converter using a Raspberry Pi Pico