These are examples of how to use the low-level machine.USBDevice class to create custom USB device functionality.

Alternatively, there are usb driver modules in micropython-lib which provide a simpler interface and more built-in functionality.

In this directory:

• usb_dfu_device.py implements the USB Device Firmware Update protocol.
• usb_simple_device.py implements a custom USB protocol, with a matching host program to run on a PC.

See comments at the top of each Python file for more details.