I understand that Particle Mesh uses OpenThread but was wondering how the connectivity is achieved hardware and firmware wise.
Is it using Bluetooth, Bluetooth radio, WiFi direct, or some other variation? What frequency does or can it use? Only 2.4 GHz?
Also, OpenThread’s websites states it can support 250+ devices. Is ParticleMesh capable of supporting perhaps thousands of devices like Bluetooth Mesh?
Thanks for the help
Thread Mesh uses 6LoWPAN over 802.15.4. It’s not Bluetooth, Wi-Fi, or Zigbee, though it uses the 2.4 MHz unlicensed band.
It’s much slower than Wi-Fi, but is designed to allow battery operated nodes to wake up, connect to their nearest repeater, exchange any saved messages in either direction, and then power down again in milliseconds.
The size of the mesh network is limited by processor and RAM before you hit the theoretical limit of Thread Mesh. The exact numbers are not available as the software is still being optimized, but certainly dozens of nodes, probably more.
Thanks for the reply! Are you also aware of figures for kbps, max range between xenon nodes in mesh, and power draw of xenon nodes?
range there are threads addressing this already, but as said above, since things are not finalised no definitive numbers may be claimed
Is the communication range of the particle mesh published anywhere?
Originally published at:
This week, I had a chance to take three new Particle Xenon boards for a spin. Our engineering teams are hard at work polishing the firmware, mobile apps, and brand-new Mesh APIs, but I was able to walk through the basic experience of claiming and naming three Xenons, setting up a mesh network of three, and interacting with the devices from the Tinker app.
It was a lot of fun to get my hands dirty…
What is Thread®?
Thread® is an open mesh networking protocol released by the Thread Group. Particle Mesh uses OpenThread, an open source implementation of Thread® released by Nest, as the foundation of Particle Mesh, our mesh networking technology.
How many devices can each network support?
Mesh networks are generally limited in size by RAM availability. The Nordic nRF52840 has a generous 256kb RAM and promises to support larger Thread® networks than were previously possible with o…
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