Depending on what document you look at, broadcast is either supported or unsupported with ESP-Now. I've tried sending packages to the broadcast address (FF:FF:FF:FF:FF:FF) and the return code indicates success, but I cannot get any device to receive those broadcasts. I found various workarounds involving announcing temporary APs for pairing, but those are kind of hackish. I might implement a workaround myself by temporarily switching the MAC address to a known one to send and receive broadcasts, which should work too, but I'd rather use the broadcast mechanism, as that is what it's for.
Has anyone got true broadcasting to work with ESP-Now?
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