Connecting Your Pergola To Home Automation

"Can I connect my pergola to my smart home?" It's one of the questions we hear most, usually from customers who already control their lights, blinds and air conditioning from an app and want their outdoor space to work the same way.

The short answer is yes. Our motorised pergolas run on Somfy, and Somfy is one of the most widely supported names in home automation. But it helps to understand how the pieces connect, because the radio technology your pergola uses decides what you need to link it to everything else.

What's Inside Your Pergola

Every motorised Sierra bioclimatic pergola we supply is fitted with a Somfy Pergola io Louver Control. It's a weatherproof control box mounted on the pergola itself, and it drives the 24V motors that tilt the louvres. It comes paired with a Somfy io remote, so the pergola works straight out of the box with no app or internet connection needed.

The control box can be paired with up to 9 remotes or controllers and up to 3 sensors per motor, so there's plenty of room to add a smart home hub, extra remotes for different family members, and weather sensors.

io-homecontrol, Not Zigbee

This is the part that causes the most confusion. Somfy uses three different radio technologies across its products:

• io-homecontrol - Somfy's two-way radio protocol for its outdoor products: pergolas, awnings, screens and shutters. Every command is confirmed, and the hub can see the position of your louvres rather than just assuming they moved. Transmission is secured. This is what your pergola uses.
• RTS - Somfy's older one-way protocol. Commands are sent, but nothing is reported back.
• Zigbee - an open smart home standard that Somfy uses for its indoor motorised blinds and curtains, not for outdoor products.

The key point: your pergola speaks io, not Zigbee. It won't pair directly with a Zigbee hub, a Home Assistant Zigbee dongle, or your Wi-Fi router. To connect it to the rest of your home, you need something that speaks io.

The Bridge: Somfy TaHoma Switch

That something is the Somfy TaHoma Switch, a small hub that sits on a shelf indoors and connects to your home Wi-Fi. It speaks io-homecontrol, RTS and Zigbee, which makes it the natural centre of a Somfy setup:

• Your pergola connects to it over io
• Somfy Zigbee indoor blinds and curtains can connect to it too, so the TaHoma by Somfy app controls your indoor and outdoor shading in one place
• Schedules and scenes - open the louvres at sunrise, close them at sunset, or set a "dinner outside" scene that tilts the louvres and switches on the lights together
• Voice control through Amazon Alexa and Google Assistant (Apple is covered below)
• Remote control from anywhere, which is what makes it possible to close your louvres from the office when a storm warning comes through - something we cover in our article on how we monitor UAE weather warnings

Connecting To Home Assistant

If you run Home Assistant, the TaHoma Switch connects through Home Assistant's official Overkiz integration, and your pergola appears as a cover you can open, close and set to a position.

We use this exact setup ourselves - a TaHoma Switch connected to Home Assistant - so this isn't theory.

The integration can talk to the TaHoma in two ways:

• Through Somfy's cloud - the simplest setup, using your Somfy account. Home Assistant checks for updates roughly every 30 seconds.
• Locally, using Somfy's Developer Mode - Home Assistant talks to the TaHoma directly on your home network, without going through the internet, and checks for updates every 5 seconds. You enable it in the TaHoma by Somfy app (Account, then Configure the installation, then Access the parameters of your TaHoma box, then tap the PIN seven times) and generate a token for Home Assistant.

Once it's connected, the pergola can join any automation you like: close the louvres when a severe weather alert arrives, tilt them as the sun moves across the terrace, or open them when you switch on the outdoor lights in the evening.

One thing worth knowing if you're planning a whole-home system: Home Assistant's Overkiz integration does not pass through Zigbee devices that are paired with the TaHoma. Your io pergola is unaffected, but if you also have Somfy Zigbee indoor blinds and want them in Home Assistant, pair them with Home Assistant's own Zigbee coordinator rather than the TaHoma.

Home Assistant isn't the only option. OpenHAB has a Somfy TaHoma binding, and other platforms that support Somfy's Overkiz API can connect in a similar way.

What About Apple Home?

Apple Home (and Siri) is where it gets more specific, so it's worth knowing the rules before you buy:

• The TaHoma Switch can link to Apple Home, but Apple only accepts two-way radio devices. That means io-homecontrol products can work, while Somfy's older one-way RTS products cannot.
• Each Somfy device type has to be individually approved by Apple, and Somfy describes support as covering a selection of window coverings and terrace equipment. So not every io product is guaranteed to appear in the Home app - if Apple Home is a must for you, tell us at the quote stage and we'll confirm it for your specific setup.
• Your TaHoma scenarios don't carry over - you recreate them as scenes in the Home app, where they can include your pergola alongside your other Apple Home accessories.
• To control it away from home, Apple Home needs a home hub that stays in the house: a HomePod or Apple TV.

If you run Home Assistant, there's a dependable route regardless: Home Assistant's built-in HomeKit Bridge passes the pergola through to Apple Home as a window covering, so you can open, close and position the louvres from the Home app or with Siri. That's the approach we'd recommend for an Apple household that already uses Home Assistant.

Wind And Rain Sensors

Somfy weather sensors can be added to the pergola's control box so it reacts to the weather on its own:

• Rain - a Somfy Ondeis rain sensor is wired directly to the control box. When it detects rain, the louvres close fully to keep the space below dry.
• Wind - a Somfy wind sensor moves the louvres to a safe preset position when the wind picks up. Automatic movements resume 15 minutes after the last wind detection.
• Sun - a sun sensor can bring the louvres to your favourite shade position automatically.

Importantly, the sensors work directly with the control box. They don't depend on your Wi-Fi, the TaHoma or Home Assistant, so the pergola still protects itself if the internet is down. Your home automation sits on top of that as an extra layer, not a replacement for it.

If your remote has an Auto/Manual switch (such as Somfy's Situo io Variation), setting it to manual pauses the sun and rain sensors, which is useful if you want the louvres to stay exactly where you've put them.

The control box also has built-in obstacle detection: if the louvres meet resistance while moving, they stop and back off briefly rather than forcing through. And there's an optional water drain setting that pauses the louvres at around 45 degrees after rain so the water runs off before they open fully. It's off by default, and our team can switch it on during installation.

What To Ask For When You Get A Quote

If home automation matters to you, mention it at the site visit. It's far easier to plan in from the start than to add later:

• TaHoma Switch - we can supply and set it up, or connect to one you already have
• Wind and rain sensors - the rain sensor is wired, so it's best fitted during installation
• Wi-Fi coverage - the TaHoma needs a Wi-Fi connection indoors and to be within radio range of the pergola, which we check during the site visit
• Lighting - Somfy-controlled lighting on the pergola can be added to the same app and automations

The TaHoma Switch and sensors are accessories, priced separately from the pergola itself, and we'll include them as clear separate lines on your quote.

Have a smart home you want your pergola to be part of? Get in touch and tell us what you're running - we're happy to talk it through.