In the last two lessons you have learned the ins and outs of programming with For Loops. There are similar loops called While Loops. In this video we show you how to program using While Loops. Anything that can be done with a For Loop can also be done with a While Loop. Which one you use is just a matter of preference. For me, I often times would prefer to use While Loops. If you want to follow along at home, you can order the Arduino Kit we are using HERE.