Per Holmquist has always had a finely tuned ear for music. "When I hear a song for the first time I know, 'Okay it will be a hit,'" he says. But he never learned to play an instrument. Taking lessons ...

With Arduino, it’s possible to build almost anything you can imagine. Whether it’s wearables, apps, or robots, the freedom Arduino offers can be liberating or intimidating, depending on your skill ...