A Deep Dive into Building Your First Linux-Powered Matter Device with Ubuntu Core 24

The world of smart home technology is evolving at an unprecedented pace, and Linux is at the forefront of this revolution. Ubuntu Core 24 opens a new chapter for developers and enthusiasts looking to dip their toes into building Linux-powered devices. Emphasizing security and reliability, Ubuntu Core becomes a solid foundation for developing smart appliances, all thanks to its latest incarnation that seamlessly integrates with the Matter standard.

The Matter protocol, brought to the forefront with its 1.3 release, aims to streamline the interoperability amongst home appliances. Covering a wide range of devices from kitchen appliances to smart locks, and even extending to electric vehicle chargers, Matter ensures these devices can communicate over the internet securely. And with the integration into Ubuntu Core, developers are provided with a guarded environment to innovate within the smart home ecosystem.

Initiating your journey into creating a Matter-compliant device is simplified using the open source Matter SDK. This toolkit lays out the groundwork at a protocol level, which encompasses everything from access control to defining device characteristics. The heavy lifting of device control logic, however, remains in the hands of the developer.

Let’s take a closer look at how you can harness this technology to build a Matter lighting device using a Raspberry Pi as an example. The process begins with setting up your Raspberry Pi, connecting an LED in the prescribed manner, and installing Ubuntu Core. This setup serves as a launching pad for our reference Matter application—a snap that transforms your Raspberry Pi into a fully functional Matter lighting device. This includes controlling an LED’s on and off states via the Matter protocol, using either WiFi or Ethernet for networking.


But how do you interact with this newly minted Matter device? A variety of options are available. For developers seeking a straightforward approach, the Chip Tool offers a command-line interface, making it easier to pair and control your device remotely. Alternatively, graphical user interface options like Google Home or the open-source Home Assistant might suit those looking for a more visual control experience. These platforms enable device paring often through scanning a QR code, a step simplified through logging features within the Matter application.

If the idea of crafting your own device from scratch is daunting, fear not. Leveraging the Matter SDK plugin for Snapcraft can significantly reduce the complexity, removing the hurdles of SDK building and application packaging. For those interested in exploring networking beyond WiFi/Ethernet, Thread networking offers a viable path. Integration with OpenThread implementations and the OpenThread Border Router, which can also be installed on Ubuntu Core as a snap, is a method worth exploring.

Transforming your project from a development prototype into a production-ready device is where Ubuntu Core shines. Its architecture not only emphasizes application security but also enables seamless over-the-air updates, a critical feature for the smart home devices of tomorrow. Transitioning to a production environment involves tailoring the Ubuntu Core image to meet specific smart home requirements, a process made straightforward through guides and documentation provided by Ubuntu.

As we wrap up this exploration, it’s clear that Ubuntu Core 24, in collaboration with the Matter standard, offers a robust platform for developing the next generation of smart home devices. Whether you are a seasoned developer or a curious enthusiast, the pathways to creating secure, interconnected appliances are wide open, promising an exciting future for the smart home ecosystem.

For those eager to embark on this journey, a wealth of resources and guides are available to streamline your project’s development. From setting up your first Matter device to diving deep into the intricacies of smart home networking, the documentation provides a comprehensive roadmap for success in your endeavors.

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