This is a picture of a Digi Designer set up using only NAND gates to logically analyze the behavior of “turning on” and “turning off” different inputs to light up an LED. We are using NAND gates in place of a NOT, AND and OR gate in order to learn how to implement NAND gates in various places. For example, in order to use a NAND gate as a NOT gate you must put your source into both inputs of the first NAND input and then the output would be a NOT.

Next time, we’ll be able to use code instead of actual wiring to manipulate the LED using switches, much like a light switch with multiple dimmers.

By: Cyndi Przybylski