Matter: the standard that unifies home automation

If you're interested in home automation and your house is full of smart gadgets, you've probably struggled with them more than once. Different apps, incompatible hubs, and strange standards that don't communicate with each other. Light bulbs that only work with one brand, sensors that depend on their own bridge, speakers that don't understand each other... a bit of a mess.

In this context it appears Matter as the great common standard for the smart home. It's not a new home automation system in the traditional sense, but a shared language that allows devices from very different manufacturers to communicate with each other locally, securely, and without you having to worry about whether it's "compatible with Alexa" or "works with HomeKit."

What is Matter in home automation and who is behind it

Matter is an open connectivity standard for smart home devices, driven by the Connectivity Standards Alliance (CSA), formerly known as the Zigbee Alliance. This alliance brings together hundreds of companies, including heavyweights like Apple, Google, Amazon, Samsung, Huawei, IKEA, Philips (Signify), Somfy or Bosch, Entre otras muchas.

Unlike classical systems, Matter does not aim to be "just another ecosystem", but a common application protocol that all ecosystems can talk aboutYour light bulb, your plug, or your thermostat "speak Matter," and thanks to that, they can be controlled from Apple Home, Google Home, Alexa, SmartThings, Homey, or other compatible controllers without you having to choose sides.

In practice, this makes Matter a standard language for home automationIf an accessory incorporates the "Works with Matter" or "Compatible with Matter" seal, it means that it implements the same internationally defined orders and structures within the standard, with strict security, encryption, and authentication requirements.

It is important to understand that Matter is not a closed Smart Home system as such. It's more of an "application layer" that sits on top of the IP networks you already use at home (Wi-Fi, Ethernet, or Thread). Different ecosystems (Google, Apple, Amazon, Samsung, Homey, etc.) use Matter to control and coordinate devices through their own apps and services, but they all communicate using the same common language.

How Matter works: IP, Wi-Fi, Thread, and Ethernet networks

A very common misconception is that Matter is “another Zigbee” or a new wireless technology. In reality, Matter is an application layer standard that runs over IPv6 on the home network. To transport its messages, it uses well-known IP protocols such as UDP and TCP in the transport layer.

Based on that, Matter devices can use different underlying network technologies: Ethernet (wired), Wi-Fi (IEEE 802.11), and Thread (IEEE 802.15.4)Furthermore, it relies on Bluetooth Low Energy (BLE) primarily for the initial registration or "commissioning" process, when you pair a new device by scanning a QR code or entering a numeric code.

The key is that The network technology is clearly separated from the application protocol.Zigbee and Z-Wave are full stacks that combine the physical, network, and application layers into a single proprietary or semi-proprietary standard. Matter, on the other hand, simply defines how devices are described, controlled, and secured, leaving the lower layers to use standard IP technologies.

From the user's point of view, the result is that Matter devices can talk to each other regardless of brand.Provided they are part of the same Matter network and have a compatible controller. However, not all communication paths are direct: devices using Thread are on a different network than those using Wi-Fi or Ethernet, and a device is needed to act as a "bridge" between them.

In this context, the so-called edge router or border router Threadwhich is responsible for linking the Thread world (low-power mesh) with the traditional LAN (Ethernet/Wi-Fi). Many modern hubs and speakers that support Matter also include a Thread Border Router function, which greatly simplifies deployment.

Thread, Wi-Fi and mesh network in the Matter standard

One of the key ingredients of the Matter ecosystem is Thread, a wireless mesh technology Designed for low-power, low-latency devices, ideal for sensors, locks, small actuators, simple plugs, or efficiently powered light bulbs.

Thread is inspired by Zigbee and uses mesh topologySeveral powered nodes (usually devices plugged into the electrical grid) act as routers that repeat signals and automatically extend coverage. Therefore, the more Thread devices you add, the network becomes more robust and extensiveimproving coverage throughout the home.

In this framework we differentiate two main types of Thread devices within Matter: the mesh network extenders or routers (electrical devices that repeat signals) and the end devices (for example, battery-powered sensors) that do not forward traffic, only send or receive data to save battery power.

On the other hand, many Matter products simply use Wi-Fi or Ethernet and are not part of any Thread mesh. These devices can be light bulbs, plugs, televisions, streaming players, hubs, Wi-Fi routers, etc. They are part of the LAN and usually have more bandwidth, but also higher energy consumption than Thread devices.

It should be borne in mind that Not all communication layers are automatically compatible with each otherLAN (Ethernet/Wi-Fi) and Thread are different networks, hence the need for the Thread edge router to act as a bridge. Matter devices over Wi-Fi/Ethernet can also connect to the internet independently, offering advantages (remote access, updates) but also potential security risks if the manufacturer doesn't address them.

Elements of a Matter network: hubs, routers, devices, and more

A Matter-based installation is not just about “putting in new light bulbs.” In a typical Matter network, we distinguish several well-defined device functions that cooperate with each other:

The first is Matter hub or controllerIt's the brain of the network, the central point that coordinates, commissions (registers), and manages the devices. You need at least one Matter controller for the system to work, although you can use several at once thanks to multi-management.

This hub doesn't have to be a dedicated "box". Many smart speakers, screens with assistants, or modern home routers They already include Matter controller functions and, sometimes, Border Router Thread functions as well. For example, certain models of Google Nest Hub, Nest Mini, Amazon Echo speakers, Apple TV 4K, Modern HomePod, Samsung SmartThings Hub or Homey Pro They can act as a control center.

Secondly we find the Edge/Border Routers ThreadThese are devices that "talk" to both LAN (Wi-Fi or Ethernet) and Thread networks and are responsible for translating traffic between them. Often, the Matter hub itself also acts as a Border Router, but this isn't mandatory: you could have a Wi-Fi router that acts as a Thread router and a separate Matter hub, for example.

Then there are the Matter devices over LANThese are products that connect via Wi-Fi or Ethernet and understand the Matter protocol. They don't repeat Thread signals and can also maintain connections to the manufacturer's cloud. A typical example would be a Philips Hue bridge that integrates with Matter as a LAN device, but at the same time continues to communicate via Zigbee with internal bulbs and Philips servers.

Finally, we have the Thread network extenders and Thread end devicesThe extenders (plugs, lamps, or mains-powered modules) behave as mesh nodes that repeat Thread traffic, while the end devices are usually battery-powered devices (motion sensors, door contacts, small remotes) that only send/receive data to maximize autonomy.

What is a Matter controller or hub and why do you need one?

Although some Wi-Fi-based Matter devices can connect directly to the network and be detected by apps, The vast majority of practical installations require a Matter controller or hubThis controller maintains the network logic, stores the cryptographic keys, and exposes interfaces so you can control your home from your mobile phone or by voice.

In practice, the Matter hub is usually a smart speaker, router or control box with compatible software. This allows local operation even without an internet connection, which is key for the lights to turn on quickly and the scenes to respond even if the manufacturer's cloud service goes down.

Furthermore, many modern hubs not only speak Matter, but integrate several protocols into a single device, combining Matter, Zigbee, Z-Wave, Infrared, 433 MHz, Wi-Fi, Bluetooth and ThreadA clear example is Homey Pro, which acts as a Matter hub and, at the same time, can unite devices that use very different technologies into a single system.

Thanks to the function of multi-administration Thanks to the standard, you can have multiple Matter controllers on the same network. This allows you to control the same devices from Google Home, Apple Home, and Alexa, for example, without having to unpair and re-pair them each time. Even so, it's recommended to choose a "main" hub for automations to avoid getting confused trying to figure out who controls what.

The hub is also crucial for aspects such as firmware updates for some devices, optional cloud connectivity, and the exposure of advanced data (energy, histories, automation workflows). Some manufacturers still require the use of their own bridge to update accessories, even if those accessories are later exposed as Matter, which goes somewhat against the spirit of the standard, but is the current reality.

Advantages of Matter compared to other home automation standards

Matter's appeal doesn't come solely from the marketing of big brands, but from several. technical and user experience advantages that seek to solve real problems of today's smart home.

The first big advantage is the interoperability between brands and ecosystemsIn theory, if something has the Matter logo, it should work with any certified controller: Google Home, Alexa, Apple Home, SmartThings, Homey, etc. This greatly reduces the classic headache of "is it compatible with…?" every time you buy a new gadget.

Secondly, Matter It runs locally over IPwithout necessarily relying on the cloud. This means lower latency, greater reliability, and increased resilience to internet outages: your lights turn on faster, sensors react sooner, and automations continue to function even if the external connection is lost.

Third, the standard places a strong emphasis on the Security by design and zero trustMatter devices use modern encryption (such as AES) and robust authentication and authorization mechanisms. Only authenticated devices can join the network and understand commands, reducing the attack surface against typical intrusions from careless IoT devices.

Another highlight is the unified and simplified setup experienceThe registration process using a QR code or an 11-digit numeric code is very similar across all ecosystems, which reduces the learning curve and friction when installing new devices. You no longer have to use a different app for each brand, as was the case before.

Finally, by relying on Thread for low-power devicesMatter inherits the ability to create highly energy-efficient networks. Thread end devices spend most of their time in standby mode, consuming very little power, yet are able to react quickly when needed, resulting in significantly longer battery life.

Current limitations and challenges of the Matter standard

Although Matter looks very good, It's not a magic wand that solves everything in home automation.Currently, the standard has several limitations and challenges that should be understood before embarking on a complete home renovation.

To begin with, The Matter device ecosystem is still relatively small. compared to the vast number of proprietary Zigbee, Z-Wave, or Wi-Fi products already on the market. Version 1.0 of the standard, released in October 2022, only covered a limited number of categories.

Among the types of devices initially supported we find light bulbs, switches and lighting controllers, plugs and sockets, locks, thermostats and climate controllers, blinds and shades, security sensors (motion, contact, smoke, CO), garage door controllers, wireless access points, bridges, televisions and streaming video players.

This list is very good, but it still leaves out Many popular products such as security cameras, complete audio systems, multiroom speakers, or robot vacuum cleanersLater versions of the standard (Matter 1.3, 1.4.1, 1.5, etc.) expand compatibility to include cameras, more advanced locks, awnings, smart irrigation, and other equipment, but actual deployment always lags behind the paperwork.

Another obstacle is that Not all brands integrate Matter directly into the final deviceSome manufacturers, like IKEA Home Smart or Philips Hue, still use Zigbee in their bulbs and add Matter compatibility via a Zigbee-Matter bridge. This means you still need the brand's own hub, although at least you can then control everything from a common ecosystem.

Added to all this is the price factor: many recent Matter devices They use more modern chips and are usually somewhat more expensive. than their Zigbee-based or proprietary equivalents. They should become cheaper over time, but in the short term, this difference must be taken into account.

Matter, Zigbee, Z-Wave and other standards: coexistence and bridges

A common question is whether, with the arrival of Matter, You have to throw away everything you already have in Zigbee, Z-Wave, 433 MHz, or other protocols. The answer is clear: no. For many years to come, we will live in a scenario of coexisting technologies.

Zigbee and Z-Wave remain widely used standards in lighting, sensors and recessed modulesThey have a vast ecosystem of devices, operate locally, and in many cases are even more affordable. In fact, many brands have announced that they will continue using them internally and will showcase integration with Matter through compatible hubs or bridges.

This is the case of Philips Hue or IKEA Home SmartThese devices require a Zigbee bridge to communicate with the bulbs, but they can connect to the Matter ecosystem through that hub. In other words, the user sees a Matter accessory and controls it as such, but under the hood, there's still a traditional Zigbee network.

Other technologies also coexist, such as RF 433 MHz for simple remote controls, infrared for televisions and air conditioners or proprietary APIs. In this scenario, universal hubs that combine Matter with Zigbee, Z-Wave, Wi-Fi, IR, and other radios become a kind of "glue" that unifies everything into a single system.

In the medium term, it is reasonable to think that Matter will be the prevailing standard. This is especially true for new smart home products, particularly those aimed at the mass market. However, older devices will continue to function for many years, and it will still make sense to invest in solutions that are flexible and integrate multiple technologies simultaneously.

Compatibility and types of Matter devices available

When making purchases, the easiest way to know if a product fits your project is Look for the Matter logo on the box or on the online listingIf it clearly says “Works with Matter” or “Compatible with Matter”, it means that the manufacturer has gone through the CSA certification process and that the device meets the requirements of the standard.

Among the most common product categories Matter These include LED bulbs and strips, smart plugs, door and motion sensors, thermostats, locks, air fresheners, purifiers, cameras (in the latest versions of the standard), robots, doorbells, hubs, routers, televisions, streaming players and much more.

Weight brands like Signify (Philips Hue, WiZ), Bosch Smart Home, Apple, Google, Amazon, Samsung or LG They are working to make a large part of their current or future catalogs upgradable or compatible with Matter, either natively or through bridges.

Of course, you have to remember that Matter has only been on the market for a short time.If you buy an older model of light bulb, thermostat, or plug, it may not have Matter support and may rely solely on its own standard (Zigbee, Z-Wave, proprietary Wi-Fi, etc.). It's always a good idea to check the specifications and, if buying online, use the product page's search function to find the word "Matter."

In some cases, even when the product is labeled as “Matter compatible”, You might still need the manufacturer's hub For certain advanced functions, such as firmware updates or specific features not yet included in the standard. Again, the industry is making progress, but the transition is not instantaneous.

Security, "Matter code" and privacy in the smart home

When we talk about "Matter code," we are not referring to the programming code of a language, but to the specifications and technical requirements that every device must implement in order to be certified. Within that framework, safety is one of the fundamental pillars.

Matter uses end-to-end encryption and strong authentication This applies both to the initial setup process and to ongoing communication between devices and controllers. Only authorized devices can join the home network, and each device has unique credentials that are verified during commissioning.

This approach of Security by design and zero trust This means that devices are built assuming they may be in insecure environments, and therefore the layers of authentication, encryption, and key management are strengthened. For the end user, this translates into less risk when opening their home to IoT, provided the manufacturer doesn't compromise these best practices with shoddy implementations.

Furthermore, being geared towards local operations, Matter reduces the need to expose each device directly to the internetIn the case of Thread, the end devices don't even have outward IP connectivity: all their communication passes through the Border Router and the controller, which can filter and limit the exposure surface and privacy.

However, LAN-based Matter devices (Wi-Fi/Ethernet) can connect to the cloud if the manufacturer chooses, adding a layer of functionality (remote control, custom integrations) but also potential privacy implications. This is where choosing trusted brands and carefully reviewing the permissions and access you grant to their apps comes into play.

How to get started with Matter at home: requirements and basic steps

Setting up a smart home based on Matter doesn't have to be complicated, but it's advisable to follow a minimal mental framework to avoid going crazy Buying devices haphazardly. First of all, you need to make sure you meet some technical requirements.

The key is to have at least one Matter compatible controller or hubThis could be a Google Nest Hub (various generations), a Nest Mini, an Apple TV 4K, any modern HomePod, a third-generation or higher Amazon Echo speaker, a recent Samsung SmartThings hub, or more advanced solutions like Homey Pro.

If you plan to use Thread-based low-power accessories (sensors, locks, small remotes), it's also important to have a Thread edge routerwhich in many cases is integrated into the same hubs mentioned earlier. Without this component, Thread devices will not be able to communicate with the main network.

Another requirement is that your Wi-Fi network supports IPv6This is something that virtually all modern routers offer, although it's sometimes disabled and needs to be enabled in the settings. You'll also need a smartphone with the app for the ecosystem you want to start with: Google Home, Apple Home, Amazon Alexa, SmartThings, Homey, etc.

The process of registering a device, known as commissioningIt has been greatly simplified thanks to the use of the QR code or the Matter numeric code. Typically, you turn on the new device, open the ecosystem app, select "Add device" or something similar, point your camera at the QR code on the box or the device itself, and your phone uses Bluetooth Low Energy to establish a secure initial connection.

Then, you follow the app's assistant to Choose the network (Wi-Fi or Thread), assign the room, give it a name (“Living room light”, “Door sensor”, etc.) and, in many cases, also link it to other Matter ecosystems if you want to use multi-administration. If the QR code scan fails, there is always the option of manually entering the accompanying 11-digit numeric code.

A couple of practical tips: always keep The Matter hub firmware and mobile apps have been updated.Because compatibility and stability improvements are ongoing. And if something is having trouble connecting, turning it off and on again, or even performing a factory reset of the device and driver, it usually resolves most commissioning issues.

Given the massive support from tech giants, the solid technical foundation, and the ability to unite light bulbs, sensors, locks, TVs, hubs, and routers from different manufacturers in a single language, Matter is clearly emerging as the standard destined to simplify home automationAlthough for now it coexists with Zigbee, Z-Wave and other protocols and requires combining bridges, hubs and edge routers to get the most out of it in a truly smart and flexible home.