A maker converted a vintage Nintendo Family BASIC keyboard (originally for the Famicom) into a modern USB keyboard using an Adafruit KB2040 (RP2040-based) and QMK firmware. The project involved wiring to the keyboard's internal matrix connector, reimplementing key-scanning logic previously reverse-engineered from the NESdev wiki and a Raspberry Pi Pico project. Files are available on GitHub, though the keyboard is noted as more of a novelty than a practical daily driver.
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