Apart from understanding the Arduino's code language ... ATmega328 itself isn't capable of doing so out of the box. In contrast, the Micro is equipped with an ATmega32U4. It has almost similar ...

On the electronics and interfacing side of things, [John] utilises the Arduino pro micro for its copious analog ... into CAD tools to work out of the box.

[Facelesstech] programmed an Arduino Pro Micro to fake controller button presses. It starts with a couple of presses to identify itself to the Switch, before generating an endless stream of button ...