Many “smart” devices are sold with the idea that you can control your home from somewhere else. Maybe change the temperature on your way home or get notified when someone rings your doorbell. All this stuff requires servers to work.
Controlling some lightbulbs via bluetooth/wifi would be possible of course, but probably not very interesting for many.
SeeJayEmm@lemmy.procrastinati.org 6 months ago
Yes. That’s why it’s called the Internet of things. Every “smart”, wifi connected, device you have uses that connection to communicate with a remote server. The app on your phone does the same to control the light.
Check out Zigbee for an example local control.