Make Magazine's Arduino Section: Make Magazine's Arduino section is a huge resource for new projects, explanations, guides, and tutorials. This is the best one-stop location for Arduino beginners ...

An Arduino can be used to test the life of any battery with less than 5 volts, Boxall says. So, for a quick way to see how much juice your AAA, AA, C, or D batteries have left, build this Arduino ...

“Whether you are a beginner, a passionate maker, or a curious musician, the Arduino Make Your UNO Kit is the perfect gift for a 100% fun guaranteed experience (treating yourself is allowed)!

The code uses a command we don’t normally see in modern C embedded programming; the goto statement. He’s using this to bypass the extra cycles used by the Arduino’s in-built loop() function.