The basics
What is myIO?
myIO is a central controller for the home, developed in Hungary. It sits in the distribution cabinet, on a DIN rail: the wires of the wall buttons, the sensors and the thermometers run here, and from here it switches the lights, the blinds, the heating and the other loads. It comes in three versions: V3, V4 GIGA and V4 Opta. More on the How myIO works page.
Who is it for?
Also for people who don’t want a “smart home”, just good heating control, room by room, for decades. Lighting, shading, solar and the rest can be added to the same controller at any time. And for those who want to run the whole house from one place, in an open system that does not tie them to a manufacturer.
Which myIO do I need?
You can compare the three controllers on the Which myIO is right for me? page. If you are unsure, plan your home in the myIO Studio, or write to us and we will help you choose.
Does it need the internet or the cloud?
No. myIO works on its own, without the internet: the timers, the automations and the heating control run on the controller, not on a remote server. If the connection drops, the house carries on as before. The internet is needed for two things: myIO takes the exact time from an internet time server, and remote access needs a connection too.
What happens in a power cut?
The settings are kept. When the power comes back, myIO restarts and all its outputs start switched off, so the lights don’t come on by themselves in the middle of the night. The heating control switches the heating back on where needed, based on the thermometers. To ride through short outages, add an uninterruptible power supply (UPS) for the controller.
Will I be tied to myIO?
No. The buttons, the relays and the power supplies are standard parts, and the wiring is star-shaped: every wire runs to the central cabinet. If you ever decide against smart control, the electrician replaces it with conventional impulse relays, and the buttons work as before.
Price and buying
How much does it cost?
There is no public price list, because every house is different. In the myIO Studio you draw your home and what you would like, and you see item by item which devices and software you need and what they cost. The installation fee is not included; your electrician quotes that.
Where can I buy it?
Plan your home in the myIO Studio and send us the finished plan, or write to us: we will send you a quote. You will find our contact details on the Contact page.
What is the warranty?
We give a 10-year warranty on the products we make ourselves. Devices from other manufacturers are covered by their manufacturer’s warranty.
Installation and setup
Who installs it?
An electrician, just like a conventional distribution cabinet. If you have your own electrician, we train them on myIO in a free crash course; if you don’t, we will recommend one. As needed, you can also ask for a pre-assembled control cabinet, on-site supervision, on-site setup and remote support. More on the Who installs it? page.
Does it work in a renovation?
Yes, but it is simplest in a new build, because the wires run from the switches and the loads straight to the central cabinet. In a renovation, where new wires can’t be run to the rooms, the heating can also be handled with Computherm Wi-Fi thermostats: myIO controls them directly, without the cloud or the internet.
Do I need to program it? How long does setup take?
No programming needed. You set up myIO on its own web interface, from any browser. The setup wizard guides you: you press the button on the wall, myIO recognises it, and you choose what it should switch. A house can be set up in a few hours, and if you would rather not deal with it, we set it up for you.
Can I extend it later?
Yes. If you only want heating now, the lighting, the shading or the solar panels can be connected to the same controller later. When the controller’s inputs and outputs run out, the system grows with expanders, and through bridges KNX, DALI, DMX and Modbus devices can be connected too. beta
Everyday use
Can I control it from my phone, and remotely?
Yes. The myIO App installs on Android and macOS; on an iPhone and on any computer it runs in the browser. At home it works without the internet. Remotely, V4 GIGA and V4 Opta are reached through myIO Cloud, with no router setup, and VPN or port forwarding also work. More on the Control page.
Can I control it by voice?
Yes, in Hungarian. On Android you tell the app, for example, to switch on the living room lamp or to lower the blinds, and it understands from the device names what you mean. On a wall tablet it can listen continuously, so you can switch things in the kitchen while washing your hands. Through Homey or Home Assistant, assistants such as Google Assistant or Alexa can also control myIO devices.
Can I control it with an AI assistant?
Yes. You can talk to your home through an AI assistant: ask how warm the children’s room was last night, or ask it to raise the living room temperature, and it helps with the setup too. The connection works through an open standard (MCP), for example with Claude.
Does it work with Home Assistant and Homey?
Yes. Home Assistant recognises myIO by itself, and there is an official myIO app for Homey. myIO devices can then be used in their scenes and automations, and controlled with the voice assistants set up there, such as Google Assistant or Alexa. The details are on the Integrations page.
Does it work with solar panels and a heat pump?
Yes. With an energy meter, myIO sees how much power goes out to the grid and how much comes in, and uses up the solar surplus: it heats the water heater with exactly the surplus, and switches on further loads one after the other. It signals the heat pump through its SG-Ready input, so it heats ahead in the cheap hours. More on the Energy and solar page.
If you already have myIO
I forgot the password or the controller's address. What do I do?
The controller’s address (IP address) is shown on the service display: on the controller for V3 and V4 GIGA, on the Expander 16 for V4 Opta. If the display is not at hand, try these addresses:
- if the controller does not get its address automatically (without DHCP):
192.168.1.170; - in WiFi access point mode (V4 GIGA, V4 Opta):
192.168.3.1; - with automatic addressing, the router’s device list or an IP scanner program shows the address.
If you forgot the password:
- V3 and V4 GIGA: reset the users from the service display. Then log in with the factory login (admin / admin), and change the password first.
- V4 Opta: hold the controller’s USER button for 5 seconds. The network settings and the users (admin / admin) return to their defaults, the controller restarts, and the Expander 16’s service display shows its new address.
How is it updated?
New features arrive as software updates over the network; no need to go to the cabinet. The myIO App updates itself.
Can a V3 become a V4?
Yes: a V3 becomes a V4 GIGA when the electrician replaces the processor board. The wiring, the cabinet and the SD card that holds the settings stay.
I found a bug, or I have an idea.
Report bugs on the Report a problem page. You can see what is being made on the What is in the workshop? page; send your ideas to info at myio dot hu.
Can’t find the answer?
Write to info at myio dot hu. Our other contact details are on the Contact page.
For professionals
- Communication: HTTP (web interface, app) and MQTT (Home Assistant Discovery); the protocol is open, and every request needs a username and password.
- AI assistant: over MCP (Model Context Protocol), with access to every myIO function. On every controller.
- Default addresses: without DHCP 192.168.1.170, in WiFi access point mode (V4 GIGA, V4 Opta) 192.168.3.1. Network name (mDNS) only when switched on.
- After a power cut, the outputs start switched off; a UPS is recommended (the controller draws about 5–10 W).
- Technical data: How myIO works; installation notes: Who installs it?.