Since their inception in 2005, Arduino development boards have become a favorite among hobbyists, makers, and experimenters.
Of all the different incarnations, the Uno remains one of the most popular.
In fact, if you’ve been dabbling in electronics for more than a few minutes or have worked with microcontrollers, chances are you’ve used it before or have at least heard of it.
A while ago, I wrote an article about using the Arduino vs a stand-alone microcontroller (like the ATmega328 that powers the Uno or a PIC).