Join a multicast address for all UDP sockets which are on the same network interface as this one.
// SYNTAX Udp.joinMulticast(IPAddress& ip); // EXAMPLE USAGE UDP Udp; int remotePort = 1024; IPAddress multicastAddress(224,0,0,0); Udp.begin(remotePort); Udp.joinMulticast(multicastAddress);
This will allow reception of multicast packets sent to the given address for UDP sockets
which have bound the port to which the multicast packet was sent.
Must be called only after
begin() so that the network interface is established.