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By eh1
#42618 Hi,

I've seen bits and pieces discussing this possibility but could a NodeMCU, in Lua, react to an arp probe by a device on the network (WiFi)? I'm interested in using an Amazon Dash button to trigger something on one. I currently do this using Python on a PC box but I'm wondering if its possible to use one of these for doing the same thing.

Thanks
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By gon
#55511 hello
looks like no one has made any progress on this, me neither.
i tried so far adapting the receiveUdp example for the dns port & the bootp port, as the new buttons supposedly don't do arp probes anymore.
i also tried giving the esp the ip adress of 8.8.8.8 as this might be hardcoded as dns server as mentioned somewhere else, but that also didn't bear any fruit.

if anyone has more ideas, i'm open for that.