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digistump-sam/libraries/DigiFi/examples/EthernetCompatible/TelnetClient/TelnetClient.ino

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+/*
+  Telnet client
+
+ This sketch connects to a a telnet server (http://www.google.com)
+ using a DigiX.  You'll need a telnet server
+ to test this with.
+ Processing's ChatServer example (part of the network library) works well,
+ running on port 10002. It can be found as part of the examples
+ in the Processing application, available at
+ http://processing.org/
+
+
+ created 14 Sep 2010
+ modified 9 Apr 2012
+ by Tom Igoe
+  modified Dec 22, 2013 for use with DigiX by Erik Kettenburg
+
+
+ */
+
+#include <DigiFi.h>
+
+
+// Enter the IP address of the server you're connecting to:
+IPAddress server(1, 1, 1, 1);
+
+// Initialize the Ethernet client library
+// with the IP address and port of the server
+// that you want to connect to (port 23 is default for telnet;
+// if you're using Processing's ChatServer, use  port 10002):
+DigiFi client;
+
+void setup() {
+ // Open serial communications and wait for port to open:
+  Serial.begin(9600);
+  
+//DigiX trick - since we are on serial over USB wait for character to be entered in serial terminal
+  while(!Serial.available()){
+    Serial.println("Enter any key to begin");
+    delay(1000);
+  }
+
+
+ 
+  Serial.println("Connecting...");
+  // start the connection:
+   client.begin(9600);
+   client.connect(server,23);
+   Serial.println("Connected.");
+   //client.setDebug(true); 
+  //wait for module to be ready
+  while (client.ready() != 1)
+  {
+    Serial.println("Connecting to network...");
+    delay(1000);
+  }  
+}
+
+void loop()
+{
+  // if there are incoming bytes available
+  // from the server, read them and print them:
+  if (client.available()) {
+    char c = client.read();
+    Serial.print(c);
+  }
+
+  // as long as there are bytes in the serial queue,
+  // read them and send them out the socket if it's open:
+  while (Serial.available() > 0) {
+    char inChar = Serial.read();
+    if (client.connected()) {
+      client.print(inChar);
+    }
+  }
+
+  // if the server's disconnected, stop the client:
+  if (!client.connected()) {
+    Serial.println();
+    Serial.println("disconnecting.");
+    client.stop();
+    // do nothing:
+    while (true);
+  }
+}
+
+
+
+