After all, the Arduino boards come with a host of benefits ... However, one notable difference between the Nano and Uno is the size of their bootloaders which affects their processor's usable ...

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.

However, while the Uno is a helpful board for your ... Despite the differences in size and microcontroller, the Arduino Nano and Micro share some similar pinout configurations.