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

The library is essential for DIY projects that involve controlling external components such ... re getting started with Arduino. Below are some of the most common functions in the library: Wire ...

The basic functions of the Arduino IDE – pinMode, digitalRead, digitalWrite, and analogRead – are available. Most of the WiFi functions work just like the WiFi shield library. There are a few ...

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 ...