What type of things can I do with a smart home?

The simple and short answer is anything you can image, but to give you some examples;

Create scenes which carry out several operations from one action. Welcome Home Scene – turns up the temperature to your comfort temperature, turns on the TV to your favourite channel or radio station and plays it through your AV system. Checks to see how dark it is outside and if it is then it turns on particular lights and closes the blinds.

Automated windows, shutters, blinds and awnings

Easily adjust and customize settings for lighting, AV and multi-media, security, HVAC, energy consumption, plus more with easy-to-use pre-sets, timers, actuators and sensors.

With devices connected to the Internet, you can setup control, for everything just as if you were at home.

Home automation based on schedules, motion, temperature, and more. Automatically adjust the blinds to help reduce solar gain on a hot day. Simulate activity at random times in the house when on holidays. Simulate presence if the intruder alarm goes off as if someone has a woken and is walking through the house.

Intruder alarm detects activity at night. Alarm sounds, and main bedroom lights come on. TV in bedroom automatically turns on and displays the camera for the area where activity was detected.

Voice control using Alexa, Google Home, Siri, and others simply tell Alexa “I’m home” and it activates the home scene. Siri – “close the living room blinds”. You said, it happens.