Before the Raspberry Pi came out, one cheap and easy way to get GPIO on a computer with a real operating system was to ...

Pin configuration by user is available. See Configuration section. Wire length between Pico and SD card is very sensitive. Short wiring as possible is desired ...

I am not planning to support this code but post it in case it is helpful to anyone. Modified the the usb_microphone example so that the example creates a USB Microphone device using the TinyUSB ...