io-homecontrol

io-homecontrol was created by a group of European building-product manufacturers so that motors, windows, gates and their controls from different members could work together. It uses the 868 MHz band, which in Europe is shared by many short-range devices with rules on how long each one may transmit.

Two-way link. A controller sends a command and the receiving product acknowledges it. The controller can also ask for the current state, so an app or wall controller can show whether a blind is open, closed or at an intermediate position, and whether the command was actually carried out. This is the main practical difference from one-way systems.

Security. The protocol uses authenticated, encrypted messages and a shared system key. Pairing a new controller into an existing installation transfers that key, which is why adding a controller usually starts from one that is already part of the system.

Topology. Controllers talk directly to products; there is no mesh routing in the sense of Zigbee or Thread. Range depends on the building: walls, metal frames, coated glazing and the shutter box all reduce it. Test each product from the controller's final position.

Power. Motors are normally mains powered; battery and solar variants exist for retrofit. Handheld controllers run on batteries.

Hubs. Wall and handheld controllers work without a hub. App, schedule and voice-assistant control need a gateway, usually from the manufacturer of the products installed.

The io-homecontrol association lists its member companies and the product families that carry the logo. In principle a controller from one member can operate a product from another, but in practice the features shown depend on the controller and gateway, so check the member's own compatibility list before mixing brands.

Somfy, Velux and other members sell gateways that expose io-homecontrol products to their apps and, through them, to selected voice assistants and smart-home platforms. Some third-party home-automation systems integrate io-homecontrol through these gateways rather than through their own radio.

io-homecontrol is not part of Matter, Zigbee or Z-Wave. A gateway that exposes io products to one of those ecosystems acts as a bridge; feedback reaches the other ecosystem only if the bridge passes it on. io-homecontrol and Somfy RTS use different radios and are paired separately, although some Somfy gateways handle both.

Generic sequence; exact steps depend on the product and controller, so follow the manufacturer's manual.

1. Installation first. Wiring a mains motor or window drive is work for a qualified person following local electrical rules. 2. First controller. A new product is paired with its first controller using the procedure in the manual, often a PROG button press or a power-on sequence. The product confirms with a short movement. 3. Limits and direction. Set end limits and direction to the real installation. Keep obstacle detection and any safety settings the manufacturer provides active. 4. Adding a controller. A second controller or a gateway joins by copying the system key from a controller that is already paired. Doing it the other way round can create a separate system that does not see the existing products. 5. Gateway. When adding a gateway, let it discover the products, then name and group them in its app.

Pitfalls: mixing an unpaired new controller with an existing system key creates two separate systems; a factory reset of a product removes it from the system and it must be paired again; long distances through metal or concrete cause missed acknowledgements, shown as errors in the app. Brand-specific resets are in the manufacturer's manual.

• Confirm the product carries io-homecontrol and not Somfy RTS; they look similar but use different radios.
• Check the controller or gateway lists the product family you plan to use, especially across brands.
• Decide where position feedback must be shown (wall controller, app, smart-home platform) and confirm the gateway passes it on.
• Plan the gateway if you want app, schedule or voice control.
• Test range from the controller's final position, allowing for shutter boxes and metal frames.
• Keep the first controller safe: it holds the system key used to add others.
• Check the power option (mains, battery, solar) against the installation.