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by SV_BubbleTime 1761 days ago
I’m familiar with the concept of action frames; but not public action frames. How does this get the device online instantly?

I had assumed they used BLE to bridge MQTT via the phone while their App was connected.

1 comments

PAF can be thought of as basically a broadcast message to any and all WiFi devices in the area, regardless of if they are connected to the same access point or IP network. In the case of someone like Amazon, a device when it is first powered on can broadcast out looking for other Amazon WiFi devices in the home and receive the credentials from them.
>a device when it is first powered on can broadcast out looking for other Amazon WiFi devices in the home and receive the credentials from them.

Ah! That explains it. I was going to be really skeptical that other people's wifi endpoints would "help out" foreign devices, but this makes more sense.