Nearly 13 years ago, I did my first serious project with V-USB roughly based upon the reference design of USnooBie and upon the technical information from other projects on the V-USB Home Page and upon a library for Arduino written by forum user Rancid Bacon. I published that project in a forum article on Arduino.cc HERE.

While cleaning my old electronic workbench, I found a drawer full of old V-USB enabled Arduino devices.

I grabbed one that I had used as the basis for this Hackaday Link.

My current laptop is a MS Surface Notebook 3 running Win-11 Pro patched to 24H2.

I opened Notepad, plugged in the V-USB Arduino device, and after a few seconds the P&P system enumerated as a USB 1.1 keyboard device. I was pretty amazed but there were errors in the data which did garble the notepad text. Still, it partially worked after 12+ years.

Moving the V-USB device over to my MS Surface Pro 4 running Win-11 24H2, the enumeration went well and the data stream into Notepad was error free! Both of these Windows machines are old units living out their second lives here with this old man, so I am not going to suggest why one worked and one half-worked.

Still, I find it nice (amazing?) to think that V-USB and a bunch of old AVR chips still can establish a HID interface on the current Win-11.