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-rw-r--r--libraries/Ethernet/examples/UDPSendReceiveString/UDPSendReceiveString.pde118
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diff --git a/libraries/Ethernet/examples/UDPSendReceiveString/UDPSendReceiveString.pde b/libraries/Ethernet/examples/UDPSendReceiveString/UDPSendReceiveString.pde
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+++ b/libraries/Ethernet/examples/UDPSendReceiveString/UDPSendReceiveString.pde
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+/*
+ UDPSendReceive.pde:
+ This sketch receives UDP message strings, prints them to the serial port
+ and sends an "acknowledge" string back to the sender
+
+ A Processing sketch is included at the end of file that can be used to send
+ and received messages for testing with a computer.
+
+ created 21 Aug 2010
+ by Michael Margolis
+
+ This code is in the public domain.
+ */
+
+
+#include <SPI.h> // needed for Arduino versions later than 0018
+#include <Ethernet.h>
+#include <Udp.h> // UDP library from: bjoern@cs.stanford.edu 12/30/2008
+
+
+// Enter a MAC address and IP address for your controller below.
+// The IP address will be dependent on your local network:
+byte mac[] = {
+ 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
+IPAddress ip(192, 168, 1, 177);
+
+unsigned int localPort = 8888; // local port to listen on
+
+// buffers for receiving and sending data
+char packetBuffer[UDP_TX_PACKET_MAX_SIZE]; //buffer to hold incoming packet,
+char ReplyBuffer[] = "acknowledged"; // a string to send back
+
+// A UDP instance to let us send and receive packets over UDP
+UDP Udp;
+
+void setup() {
+ // start the Ethernet and UDP:
+ Ethernet.begin(mac,ip);
+ Udp.begin(localPort);
+
+ Serial.begin(9600);
+}
+
+void loop() {
+ // if there's data available, read a packet
+ int packetSize = Udp.parsePacket();
+ if(packetSize)
+ {
+ Serial.print("Received packet of size ");
+ Serial.println(packetSize);
+ Serial.print("From ");
+ IPAddress remote = Udp.remoteIP();
+ for (int i =0; i < 4; i++)
+ {
+ Serial.print(remote[i], DEC);
+ if (i < 3)
+ {
+ Serial.print(".");
+ }
+ }
+ Serial.print(", port ");
+ Serial.println(Udp.remotePort());
+
+ // read the packet into packetBufffer
+ Udp.read(packetBuffer,UDP_TX_PACKET_MAX_SIZE);
+ Serial.println("Contents:");
+ Serial.println(packetBuffer);
+
+ // send a reply, to the IP address and port that sent us the packet we received
+ Udp.beginPacket(Udp.remoteIP(), Udp.remotePort());
+ Udp.write(ReplyBuffer);
+ Udp.endPacket();
+ }
+ delay(10);
+}
+
+
+/*
+ Processing sketch to run with this example
+ =====================================================
+
+ // Processing UDP example to send and receive string data from Arduino
+ // press any key to send the "Hello Arduino" message
+
+
+ import hypermedia.net.*;
+
+ UDP udp; // define the UDP object
+
+
+ void setup() {
+ udp = new UDP( this, 6000 ); // create a new datagram connection on port 6000
+ //udp.log( true ); // <-- printout the connection activity
+ udp.listen( true ); // and wait for incoming message
+ }
+
+ void draw()
+ {
+ }
+
+ void keyPressed() {
+ String ip = "192.168.1.177"; // the remote IP address
+ int port = 8888; // the destination port
+
+ udp.send("Hello World", ip, port ); // the message to send
+
+ }
+
+ void receive( byte[] data ) { // <-- default handler
+ //void receive( byte[] data, String ip, int port ) { // <-- extended handler
+
+ for(int i=0; i < data.length; i++)
+ print(char(data[i]));
+ println();
+ }
+ */
+
+