Figure an Arduino most matches the "Other" category. To be specific, it isn't an Arduino brand, it is a DigiSpark, but the trouble isn't with the device itself. The problem is with a buzzer. I got ...

But there are really just the two speeds with the current programming. Inside the cool laser-cut box is an Arduino Uno and a 9V battery, plus a current-limiting resistor and the all-important buzzer.

The base unit houses an Arduino board which polls the buttons to see which is pressed first. The LED on the appropriate buzzer box is illuminated so the players know who got in first.

If you are just learning how to do Arduino projects or want to start, here are six fun and easy projects you can try that are perfect for beginner programmers.

On Tuesday's (May 27) season 20 premiere of America's Got Talent, judge Simon Cowell was blown away by a Brazilian crew that combined LED technology and dance for a simply mesmerizing show.

On the season 20 premiere of 'AGT,' Simon Cowell was blown away by Brazil's Light Wire, which combined LED and dance for a mesmerizing show.

A green LED indicates that the cable is functioning correctly, while a red LED and buzzer signal a problem such as an open circuit, short, or miswire.

The Chemistry Lesson That Led to the Most Dramatic Buzzer-Beater in NBA History© Luke Hales/Getty Images Aaron Gordon dunks the game winning basket in Game 4 to stun the Clippers.© Luke Hales ...

When Light Balance, a group of adult Ukrainian LED pop dancers, tried out for America's Got Talent back in Season 12, they earned the Golden Buzzer during their audition and ended up placing third ...