Tutorial: How to Build an Adder and How it Works

In this tutorial I show you how to build a circuit called an adder - but wait, you don't care about adders? You should check this out anyway because it'll help you begin to learn how to apply logic in redstone! World Download: http://www.planetminecraft.com/project/tutorial-how-to-build-an-adder-and-how-it-works/