Last week we talked about the five families of home automation equipment, which type might suit you, and – if they were a car – what car they’d be. Most of our clients at Automation Associates sit somewhere between Toyota and Audi.

This week, we’re delving into the tech nitty-gritty: the standards and protocols that allow your devices to talk to each other, and what that means for your home. There are two big camps:

  • Wireless standards (Wi-Fi, Zigbee, Z-Wave, Matter, etc.) – easier to retrofit, more flexible, but can face interference.
  • Wired standards (systems like Crestron Home or Vantage) – harder to retrofit, more costly, but rock-solid and immune to wireless issues.

Which camp you land in will depend on whether you’re building new, retrofitting an existing home, or running a large property. From there, the choice of specific standard (and the company behind it) makes all the difference.

Part Two – Standards & Provenance – What to Pick and What to Avoid

Wired vs wireless

Communication Standards

Home automation standards have evolved over time to make it easier for devices from different manufacturers to work together – and to stay compatible as technologies change. Standards such as SmartThings, KNX, and Matter help ensure that your smart home devices can communicate reliably today and in the future.

If you’re in the Proprietary, Programmable, or Configurable camp, these standards don’t matter as much. But in the plug-and-play world, they’re everything.

Wired Standards

Wired home automation systems use physical cabling to connect devices, rather than relying on wireless signals. Because they don’t share spectrum with Wi-Fi, Zigbee, or other wireless protocols, they are immune to interference, offer extremely reliable communication, and can handle high-bandwidth applications like whole-home video and advanced control.

Popular wired systems include Crestron Home and Vantage. These systems use their own proprietary protocols, refined over decades, which ensures that devices work seamlessly together. Wired systems tend to be more expensive and complex to install, so they are usually recommended for new builds or major renovations, where the cost and installation effort can be planned for upfront.

Key benefits of wired standards:

  • Rock-solid reliability with no interference

  • Supports high-bandwidth and critical applications

  • Long-term system stability

  • Ideal for premium homes or commercial-grade installations

Considerations:

  • Installation cost and complexity are higher than wireless

  • Less flexible to modify once installed

  • Usually requires professional setup

In the car analogy, wired systems are like Mercedes or BMW—built for performance, longevity, and a different class of experience compared to plug-and-play wireless systems (Toyota).

Wired standards logos

Wireless Standards

Wireless standards define how devices actually talk to each other. Some are open (free for manufacturers to use), while others are closed (licensed). For example, Z-Wave was once closed but is now open.

Here’s a snapshot:

  • Wi-Fi – Everyday internet connection for laptops, tablets, TVs (2.4GHz & 5GHz). Usually connects directly to the internet.
  • Z-Wave – Best for existing homes with a limited range of devices. Runs on 921MHz, mature, interference-free, but generally more expensive than Zigbee. No direct internet connection.
  • Zigbee – Great for existing homes, with a wide range of supported devices. Uses 2.4GHz (so interference can be an issue). Cheaper than Z-Wave. No direct internet connection.
  • Matter – The newcomer. Runs on 2.4GHz, so interference may be an issue, but offers direct internet connectivity. Designed for broad compatibility.
  • Wi-Fi HaLow – Long-range Wi-Fi (up to 3km). Great for streaming camera video across farms or large properties.
  • LoRaWAN – Very long range (5km+), but low bandwidth. Ideal for sensors (e.g., water tanks, gates, locks) rather than video.Standards logos

What’s Right for Me?

  • Existing house, budget-focused, low security → Matter
  • Existing house, budget-focused, high security → Zigbee
  • Existing house, less budget-sensitive, high security → Z-Wave
  • New house, budget-focused → Matter or Zigbee
  • New house, budget not a driver → Go wired. Systems like Crestron Home or Vantage don’t rely on wireless at all, which means no interference issues and rock-solid reliability. They use their own proprietary wired protocols refined over decades. If wireless is Toyota, wired is Mercedes and BMW – built for performance, longevity, and a different class of experience.
  • Farm / agribusiness, sensors only (no video) → LoRaWAN
  • Farm / agribusiness, need video → Wi-Fi HaLow

Provenance

I like to predict a company’s future success by looking at its past performance – growth, openness, interoperability, and even its funding or ownership.

New Zealand has seen plenty of “flash in the pan” automation brands (Smartwires, Kristal), and many internationals have come and gone (Osram, Insteon, Hager). At the other end of the spectrum, Vantage and Crestron have been around for over 40 years and are still going strong – proof that the wired camp has real staying power.

For newcomers, interoperability is the make-or-break factor. The broader the ecosystem, the better. Zigbee (via Home Assistant) and Matter look like safe bets here. Z-Wave has the history, but I’m not sure it’s where developers are putting their energy anymore.

Apple products will almost certainly have long-term legs thanks to their diehard customer base. I’m less convinced about Samsung’s SmartThings platform. It’s supposedly open, but if you’re a young developer you’re more likely to throw your energy into Home Assistant or Matter – and that’s where I see the real growth happening.

Looking Ahead

Looking ahead

As you can see, picking the right standards and understanding the provenance of the systems you choose lays the foundation for a reliable smart home. But standards are only part of the story – how your devices interact with the cloud, the apps you use, and the security of those connections are the next frontier. In Part 3, we’ll dive into cloud interactivity: what it means for convenience, control, and safety, and how to make smart choices so your home works for you – not the other way around.