Analyst-in-Residence, Industrial IoT and IoT Technology, Bill Curtis, Dives in as CES 2022 product announcements signal the end of the consumer IoT “connectivity wars” that began over 20 years ago. Today, Bill takes a closer look at Matter and Thread and NXP Tri-Radio Thread Border Router Chip.
Although creating a lingua franca for residential IoT is a very ambitious project, Matter is likely to succeed because its sponsors include some of the biggest brands in consumer electronics – Amazon, Apple, and Google. These companies, plus over 200 others, agree that removing undifferentiated friction from the IoT marketplace is more important than any perceived competitive advantage from using proprietary networks or messages.
Here’s a slightly more technical view of Matter from an IoT device perspective . At the top of the stack, IoT devices and ecosystems send and receive Matter network messages via standard Internet protocols – TCP/IP and UDP, with IPv6 addressing. Wi-Fi and Thread networks deliver these messages to Matter-enabled products. Matter also uses Bluetooth LE to simplify adding nodes to a Matter network via smartphones.
Thread devices can plug and play on existing home networks, provided that there is at least one Thread border router to act as a bridge between Thread and Wi-Fi . But consumers don’t want to buy and manage another router or hub specifically to enable Thread. Like I said above, we’re trying to get rid of hubs.
Market leaders Amazon, Apple, Google, and others are already shipping a few products with integrated Thread border routers, and many more are on the way for this year. One way to accelerate the growth of Thread and Matter is to reduce the cost and development time for adding Thread border router capabilities to smart-home products. Manufacturers need complete Thread border router subsystems that easily integrate into cost-sensitive consumer products.
Border routers need three radios – Thread , Wi-Fi , and Bluetooth LE . Although chips and modules for all three of these radios are readily available from many silicon suppliers, integration is surprisingly complicated. For instance, all three radios share the same 2.4GHz ISM band, creating gnarly coexistence problems. Also, developers need software stacks that work together across all three radios, and regulatory certification must be straightforward.
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