Live data from Hacker News

Zigbee vs. Matter over Thread:Understanding IoT Protocol Performance in Practice

arxiv.org

21–30 of 103 posts

Re: Zigbee vs. Matter over Thread:Understanding IoT Protocol Performance in Practice

#21

Earlier quoted context omitted.

I took their point to be about wifi being jammable

Yeah first thing burglars are gonna do is jam your wifi camera so you don't have any video of them. Run cat-5 and get a PoE camera.

And be sure your outdoor cameras are on an isolated VLAN so people can't just plug in to your home network.

Re: Zigbee vs. Matter over Thread:Understanding IoT Protocol Performance in Practice

#22
post #4

I’m a bit surprised they didn’t add zwave into this comparison.

Doesn't zwave use a different frequency, and zigbee and thread are both 2.4ghz? Perhaps that makes it a more fair comparison?

some zigbee controllers even support being converted to thread via a firmware update

Re: Zigbee vs. Matter over Thread:Understanding IoT Protocol Performance in Practice

#23
post #9

Earlier quoted context omitted.

Thread is fairly similar to Zigbee, just standardized and doesn't require brand specific hubs. You can actually control thread devices direct from an iphone with no hub at all. Wifi for anything but cameras is a mistake, it only exists for maximum compatibility since everyone has wifi already.

> Wifi for anything but cameras Buttons (key presses, remotes - think rapid input), Knobs, sliders, Pixel LED' strips, some MM wave sensors, ir/radio transmitters, really need wifi. There is products where you will want a bluetooth proxy, plenty of kitchen/grill thermometers and scales for kitchen and bathroom are great examples. Where range is an issue LoRa is a thing that has plenty of devices and is easy to DIY.

My matter over thread devices (inovelli) for light switches work faster and better then my old wifi devices (cync)

Re: Zigbee vs. Matter over Thread:Understanding IoT Protocol Performance in Practice

#24
post #4

I’m a bit surprised they didn’t add zwave into this comparison.

Doesn't zwave use a different frequency, and zigbee and thread are both 2.4ghz? Perhaps that makes it a more fair comparison?

Yes, zwave is in the much less congested 900mhz range. It is a fair bit more reliable as it doesn’t compete with:

- WiFi

- Bluetooth

- microwave ovens

Additionally, it’s a bit more strict with certification so you can easily use multiple vendors for zwave whereas with zigbee it’s often a terrible experience since vendors implement things differently in ways that are not as interoperable. In fact, for a device to be certified by the zwave alliance, it must pass strict conformance testing to ensure backwards compatibility and interoperability.

Re: Zigbee vs. Matter over Thread:Understanding IoT Protocol Performance in Practice

#25
post #8

Earlier quoted context omitted.

No, you have to order it from Mouser for $16 instead. Fixed link: https://www.mouser.com/en/ProductDetail/Nordic-Semiconductor... And there’s a little configuration: https://wiki.makerdiary.com/nrf52840-mdk-usb-dongle/guides/n...

Dead product link

Sorry I thought I was removing tracking bits from the URL. It’s fixed now.

Re: Zigbee vs. Matter over Thread:Understanding IoT Protocol Performance in Practice

#26

Earlier quoted context omitted.

Is there a situation in which your smarthome taking 30s to recover from a node failure is impacting your life? Seems like a distinction without a difference

Standing outside with an armfull of groceries, and a door is now our of range of your hub temporarily due to the failed node. 30s can seem like quite a while standing in the rain.

Not exactly a strong argument if you need like 5 qualifications to demonstrate the issue. If the right node fails, if it happens right as you walk up, if it's raining, if your porch is uncovered, if your door doesn't have an immediate fallback... I'm sure someone will be affected because of the law of large numbers, but it seems like an unlikely scenario to base a purchasing decision on.

Re: Zigbee vs. Matter over Thread:Understanding IoT Protocol Performance in Practice

#27
post #4

I’m a bit surprised they didn’t add zwave into this comparison.

yes, and also that if someone is buying stuff new, it should be exclusively zwave800 stuff. example hardware on the "hub" end would be:

https://www.home-assistant.io/connect/zwa-2/

https://www.getzooz.com/zooz-zst39-z-wave-long-range-usb-sti...

the zooz is this internally: https://www.silabs.com/wireless/z-wave/800-series-modem-soc/...

Re: Zigbee vs. Matter over Thread:Understanding IoT Protocol Performance in Practice

#28

A lot of graphs where OpenThread & zigbee dance around each other, are within 2x of each other. Two huge notables to me: message throughput for openthreads scales up, zigbee seems to hit a wall early. Not sure when that matters but very clear. The last table was a fright through: it takes half a minute for OpenThreads to recover after a node drops where-as Zigbee a quarter second! Wow.

Is there a situation in which your smarthome taking 30s to recover from a node failure is impacting your life? Seems like a distinction without a difference

Because IOT devices are cheap and networks are ad hoc, flaky connectivity is a likely occurrence. Thread must be reliable in these situations.

Re: Zigbee vs. Matter over Thread:Understanding IoT Protocol Performance in Practice

#29
post #4

I’m a bit surprised they didn’t add zwave into this comparison.

yes, and also that if someone is buying stuff new, it should be exclusively zwave800 stuff. example hardware on the "hub" end would be: https://www.home-assistant.io/connect/zwa-2/ https://www.getzooz.com/zooz-zst39-z-wave-long-range-usb-sti... the zooz is this internally: https://www.silabs.com/wireless/z-wave/800-series-modem-soc/...

another protocol/wireless stack? Why can't we settle down to something that is at least "good enough"?

Re: Zigbee vs. Matter over Thread:Understanding IoT Protocol Performance in Practice

#30
post #4

I’m a bit surprised they didn’t add zwave into this comparison.

yes, and also that if someone is buying stuff new, it should be exclusively zwave800 stuff. example hardware on the "hub" end would be: https://www.home-assistant.io/connect/zwa-2/ https://www.getzooz.com/zooz-zst39-z-wave-long-range-usb-sti... the zooz is this internally: https://www.silabs.com/wireless/z-wave/800-series-modem-soc/...

Do you really need long antenna? I noticed zwave can act as a mesh.
Post reply on HN