The library is essential for DIY projects that involve controlling external components such ... re getting started with ...

[Faransky] has created a very impressive Arduino function generator that doesn ... you could delete those components in favor of a 5V AC/DC adapter.

Where we come from, a bunch of functions written in a programming language is called a library. So which is it, Arduino? (The Language Reference page is a total mess, combining parts of standard C ...

However, additional components -- a Wi-Fi shield ... use a separate supply for this device to ensure it functions as intended even when the Arduino is turned off or disconnected from the main ...