Re:Smart home devices should work without the internet
by wolrah on Tuesday November 10, 2026 @01:11PM
(#50443953)
> 1. No network, no problem. Anything core to the house has to work with Wi-Fi or automation server shut down.
This is one of the reasons I love Zigbee, the device network is entirely independent of my computer network, can not directly communicate to the internet in any way, and every device I've put on the network so far can be configured to directly communicate with other devices so basic functionality remains operational even if the controller goes down.
For example, in my living room I have a Lutron Aurora dimmer dial locking a standard switch in the on position, then plugged in to the outlet that switch would normally control is a Leviton dimmer module. Both connect to the network controlled from a PoE Zigbee dongle, but have been directly paired as well so pressing the button on the dial makes it directly tell the dimmer module to turn on, rotation commands are sent direct, etc.
The controller also receives these commands when it's active and can add to the functionality for inputs like double-click, but if it's down the basic functionality still works entirely as a normal person would expect. You walk in to the room and see a knob on a switch plate, you turn the knob and the light brightness increases regardless of the state of the internet, my home server, or even my network as a whole.
The other major advantage compared to Matter/Thread is that it's not IP based so it's impossible for any Zigbee device to ever have a cloud dependency. No matter how much some marketing dingus might want to, it can not be ruined.
This is one of the reasons I love Zigbee, the device network is entirely independent of my computer network, can not directly communicate to the internet in any way, and every device I've put on the network so far can be configured to directly communicate with other devices so basic functionality remains operational even if the controller goes down.
For example, in my living room I have a Lutron Aurora dimmer dial locking a standard switch in the on position, then plugged in to the outlet that switch would normally control is a Leviton dimmer module. Both connect to the network controlled from a PoE Zigbee dongle, but have been directly paired as well so pressing the button on the dial makes it directly tell the dimmer module to turn on, rotation commands are sent direct, etc.
The controller also receives these commands when it's active and can add to the functionality for inputs like double-click, but if it's down the basic functionality still works entirely as a normal person would expect. You walk in to the room and see a knob on a switch plate, you turn the knob and the light brightness increases regardless of the state of the internet, my home server, or even my network as a whole.
The other major advantage compared to Matter/Thread is that it's not IP based so it's impossible for any Zigbee device to ever have a cloud dependency. No matter how much some marketing dingus might want to, it can not be ruined.