Learn how to create a simple heart rate monitor using an Arduino Pro Mini, PulseSensor, and OLED display. This ...

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 Arduino Plug and Make Kit costs $87 at the moment and is still in stock as of this writing. Listing image: Arduino Kevin Purdy Senior Technology Reporter.