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.

You’ll also need some jumper cables to interface the different parts of your Arduino project with the breadboard. While ...

Comparing the Arduino Uno and the Nano, you'll notice that the ... your Nano's VIN pin to the supply's positive wire and your ...

[Rafael] just made a little library that allows you to interface these modules to the Atmega328p-based Arduino UNO in order to gain some memory space. His work was actually based on the great ...