This feature isn’t exclusive to the Leonoardo, as [Michael] explains in a build he sent in – the lowly Arduino Uno can also serve as a USB HID keyboard with just a firmware update.

The board itself also has some differences from the original Arduino Uno. First of all, it has a USB type-C port, which is definitely a bonus. Secondly, it’s simpler: No USB-UART (which also ...

The USB port is for connecting to your computer ... the site even allows you to browse through projects that only use an Arduino UNO. Another great resource for finding Arduino projects is ...