The Arduino ecosystem is an amazing learning tool, but even those of us who love it admit that even the simplified C Arduino ...

Thankfully, Arduino forum member Romano d'Ezzelino has put together a series of reference cards that show the basics of a number of common connections.

We'll outline the basics of the Arduino itself, what the crazy jumble of wires means, and then step through how to use other people's code and schematics to build your first electronics project ...