Home Assistant for beginners: the questions everyone asks before starting

You’ve heard about Home Assistant, maybe seen a dashboard in a video, and you’re curious, but you don’t know where to start. That’s normal: almost everything written about Home Assistant assumes you already have it running. Here are the questions nearly everyone asks before getting started, with short, jargon-free answers.

What is Home Assistant?

It’s a platform to control and automate your home from one place. Instead of one app for the bulbs, another for the plugs and another for the thermostat, you bring everything into Home Assistant and make it work together. It’s open source and backed by the Open Home Foundation, a non-profit, so no company can buy it and shut it down.

How much does it cost?

The software is free. What you pay for is where it runs: hardware at home (a Raspberry Pi or similar, plus electricity) or a service that runs it in the cloud for you. If you already have smart devices you control with their app (plugs, bulbs, thermostats…), they usually work, so you don’t need to start by buying anything. What can’t be controlled is a device with no connection: a regular light bulb, for example, needs a smart switch or plug to join Home Assistant.

Do I need to know how to code?

No. Automations are built in a visual editor by picking options from menus, and the main dashboard builds itself from the devices you add. If you ever want to go further, you can edit the configuration in YAML, which is plain text, but it’s optional. There are also blueprints: ready-made automations shared by the community that you install and fill in with the sensor or light to use.

What do I need to get started?

Somewhere for Home Assistant to run. There are two paths: set it up on your own hardware at home, or run it in the cloud without installing anything. We compare them in detail in Home Assistant in the cloud or on a Raspberry Pi: which one suits you. For your first steps, the cloud is the quickest: no hardware to buy, no cards to flash, and you’re in within minutes.

Will it work with my devices?

Home Assistant integrates with more than a thousand brands and services, so most likely yes. Before deciding, it’s worth checking how each one connects, because that determines which option works for you:

Through the manufacturer’s cloud (many brands of plugs, bulbs and robot vacuums): they work the same with Home Assistant at home or in the cloud.
Over Wi-Fi with MQTT (Tasmota, Shelly, ESPHome set up with MQTT): they work in both cases, and in the cloud you don’t need to open ports.
Only inside your network (some local devices, RTSP cameras, Z-Wave or USB sticks): they need hardware at home.

The integrations search on the official website tells you how each brand connects.

Can I use it from my phone and away from home?

Yes. There’s a free official app for Android and iOS. Using it at home is instant; using it away from home, with hardware at home, takes some extra setup. We explain it in how to access Home Assistant away from home without opening ports. If Home Assistant runs in the cloud, it already has its own secure address and the app works from anywhere from day one.

What is an automation?

A rule your home follows on its own. It has three parts: what triggers it, an optional condition, and what it does. For example: when the sun sets (trigger), if someone is home (condition, which the phone app knows), turn on the living room light (action). You build it in the visual editor in a couple of minutes, and it’s the moment Home Assistant stops being a remote control and starts being useful.

What about my data?

Home Assistant puts privacy first: your data is stored in your own installation, not on a big platform’s. If it runs at home, it stays on your hardware. If it runs in the cloud, pick a service where the instance is yours alone and you can choose which country your data lives in.

What if I break something?

It happens to everyone, and it can be fixed. Home Assistant makes full backups of your configuration that you can restore in minutes. The key is having a recent one stored off the machine. The same goes for updates: they come out every month and almost always go smoothly, but it helps to be able to roll back if one fails.

Start without buying anything

With Coiaca Cloud HA you get official, unmodified Home Assistant on your own private instance, in the region you choose: in the EU, Amsterdam or Frankfurt; in the US, New York or San Francisco. It’s ready in about 15 minutes, with an HTTPS address for the app, an MQTT broker with TLS already set up, and the Marketplace for community integrations. You make a backup with one click and download it whenever you like, and you update with one click, with automatic rollback if the new version doesn’t start. What it doesn’t include are Home Assistant apps (formerly add-ons), which need Home Assistant OS.

Try Coiaca Cloud HA free for 30 days: if it’s not for you, cancel before day 31 and you pay nothing.

Sources

Coiaca is not affiliated with the Open Home Foundation or Nabu Casa. Home Assistant is a trademark of its owners.