Recently I had to replace a 4-way switch, an electrical component that lets you turn a light on or off from three or more locations. While installing it, I thought about the binary properties of my three-switch circuit: I saw powers of two, binary logic, and binary gray code. I drew some diagrams, including a state machine. I’ll share my thoughts and diagrams with you in this article.
Continue reading “Binary Properties of a 4-Way Switch Circuit”