Smart Switch Wiring - Easy Step by Step Instructions Jan 30, 2019Introduction to the Smart Switch. A smart switch is a key element of a smart home. Before getting starting with wiring, be sure to familiarize yourself with the articles on the introduction to wiring and basic (non-smart) switch wiring.Smart switches work exactly like the basic light switch – the black wire goes through the switch and is toggled on or off by the switch. Three Way Smart Switch Wiring - Smart Home Czar Jan 30, 2019How to Wire a Smart Three-Way Switch. With this basic understanding of how the smart three-way switch works, wiring a smart-three way switch should make more sense. The GE smart three-way switch comes with detailed instructions and a wiring diagram that is accurate. But it suffers a bit from too much information.