What is Home Assistant
and Why You Need It

What is Home Assistant?

Home Assistant is an open-source home automation system that lets you control all your smart devices from a single place — without cloud, without subscriptions and without dependency on external servers.

With over 3,000 integrations, Home Assistant can communicate with almost every smart device on the market: thermostats, sensors, lights, cameras, boilers, heat pumps and much more.

Where does Home Assistant run?

Home Assistant can be installed on various hardware:

• Raspberry Pi 4/5 — the classic choice, affordable and reliable
• Mini PC / Thin Client (e.g. Dell Wyse) — more power, low consumption 8–15W
• NAS (Synology, QNAP) — if you already have a NAS at home
• Any Linux PC — via Docker or VM

At Smart Home Hellas we primarily use refurbished thin clients that consume only 8–15W — running 24/7 silently without overheating.

Which protocols does it support?

Home Assistant supports virtually every communication protocol:

• Zigbee — wireless, low-power, mesh network
• MQTT — lightweight protocol for IoT devices
• Modbus RTU/TCP — for industrial installations and energy meters
• 1-Wire — for DS18B20 temperature sensors
• ESPHome — for custom ESP32/ESP8266 devices
• LoRa — for long-range communication

How do you get started?

The easiest step is to get hardware with Home Assistant OS pre-installed. At Smart Home Hellas we provide pre-configured thin clients — just connect, open your browser and you're ready to go.

Conclusion

Home Assistant is today the best choice for anyone who wants full control of their smart home without third-party dependencies. It is free, reliable and continuously improved by a massive community.

At Smart Home Hellas we use it in every installation — from simple temperature sensors to complete energy management systems.