Huh. Despite being a ginormous nerd and in the IT industry for multiple decades now, I’ve never actually given any thought to how USB works. Sort of surprising how complicated the on-wire chatter is for something as seemingly simple as a keyboard

Before I even clicked the link, I was hoping it would lead to Ben Eater’s video! I’ve gone through many tutorials/guides/videos on the subject of USB, and this video is the only one which really broke it down and presented it in a comprehensible manner.

I highly recommend all of his content if you are interested in electronics at all.