Read input from a USB keyboard connected to the Raspberry Pi Pico via an extra USB port, using Pico_PIO_USB
Based on code from https://github.com/sekigon-gonnoc/Pico-PIO-USB/tree/main/examples/host_hid_to_device_cdc
https://www.hobbytronics.co.uk/usb-connector-pinout VCC, D-, D+, GND
init submodule Pico-PIO-USB
- cd pico-sdk
- git -C lib/tinyusb/ submodule update --init hw/mcu/raspberry_pi/Pico-PIO-USB
Note: the HC-05 board is just serving as a raw bluetooth serial console