Since you're using GPIO extenders, why not use ESP32 for the MCU?
EDIT: after watching you video on making the keyboard controller I realized that only recently Espressif has made USB OTG work on ESP32-S2. Still, it would be nice if in the future you could show how portable the badger code is and make it run on ESP32.
Since you're using GPIO extenders, why not use ESP32 for the MCU?
EDIT: after watching you video on making the keyboard controller I realized that only recently Espressif has made USB OTG work on ESP32-S2. Still, it would be nice if in the future you could show how portable the badger code is and make it run on ESP32.