Any way of using as a presence detection for wifi devices on the network?

[thefunkygibbon]

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So i was thinking, since this is just sniffing the network for the addition of specific mac addresses appearing and then informing Home Assistant (and others). I was wondering if it would be possible to do the same to alert HA that the person has Joined the network and then notify if they leave the network. Effectively becoming a better network presence sensor than using NMAP/ICMP

[Nekmo]

Yes, It can be used as a presence sensor :) However, if the device sends reconnection packets, the function could be executed several times.

[chrissv]

How would this work in practice? Wouldn't you have to keep pressing the Dash button to announce your "presence" ?