First things first. If you haven’t done so yet, download and install the Arduino software for your operating system. Here’s a tutorial if you get stuck.

Tronixstuff has a borderline insane tutorial series going, and as of now, 27 chapters have been published. It's essentially the Arduino Bible, but the two most recent additions in particular have ...

Arduino writes: “You can mix PLC programming with Arduino sketches within the integrated sketch editor, and seamlessly share variables between the two environments. Bring deterministic cyclic tasks ...