Smart homes allow homeowners to monitor and control home devices and appliances remotely using smartphones and tablets. Homeowners can check if they turned off the coffee maker, set the security alarm, or if kids are doing homework. Smart home technologies like X10 communicate over existing electrical wires, allowing devices to send commands to each other by code. Setting up a smart home involves choosing a protocol and compatible devices that provide functions like monitoring security cameras, controlling thermostats remotely, automating lights and appliances with phones, and receiving alerts about home activity. Smart homes aim to make life more convenient and secure by allowing remote control and monitoring of the home from anywhere.