Read more: Battery Brands Ranked From Worst To Best The Arduino Uno Rev3 is the third revision of ... The VRTC pin supports anything between 1.6V and 3.3V, so using two AA batteries would be ...

The Uno Rev3, is a great beginner board as it's included in many starter kits. It's also complemented with a host of online resources that even without the official Projects Book from Arduino ...