User Manual

if ( packetSize )

{

// Print out the contents with remote information

Serial.printf("Received %d bytes from ", packetSize);

Serial.print( IPAddress(udp.remoteIP()) );

Serial.print( " : ");

Serial.println( udp.remotePort() );

udp.read(packetBuffer, sizeof(packetBuffer));

Serial.print("Contents: ");

Serial.write(packetBuffer, packetSize);

Serial.println();

// Echo back contents

udp.beginPacket(udp.remoteIP(), udp.remotePort());

udp.write(packetBuffer, packetSize);

udp.endPacket();

}