Updated DHCP Address printer for Ethernet library

tigoe · tigoe · commit eabc471876b9 · 2011-05-21T10:01:03.000-04:00
diff --git a/libraries/Ethernet/examples/DhcpAddressPrinter/DhcpAddressPrinter.ino b/libraries/Ethernet/examples/DhcpAddressPrinter/DhcpAddressPrinter.ino
@@ -0,0 +1,54 @@
+/*
+  DHCP-based IP printer
+ 
+ This sketch uses the DHCP extensions to the Ethernet library
+ to get an IP address via DHCP and print the address obtained.
+ using an Arduino Wiznet Ethernet shield. 
+ 
+ Circuit:
+ * Ethernet shield attached to pins 10, 11, 12, 13
+ 
+ created 12 April 2011
+ by Tom Igoe
+ 
+ */
+
+#include <SPI.h>
+#include <Ethernet.h>
+
+// Enter a MAC address for your controller below.
+// Newer Ethernet shields have a MAC address printed on a sticker on the shield
+byte mac[] = {  
+  0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02 };
+
+// Initialize the Ethernet client library
+// with the IP address and port of the server 
+// that you want to connect to (port 80 is default for HTTP):
+Client client;
+
+void setup() {
+  // start the serial library:
+  Serial.begin(9600);
+  // start the Ethernet connection:
+  Serial.println("Trying to get an IP address using DHCP");z
+  if (Ethernet.begin(mac) == 0) {
+    Serial.println("Failed to configure Ethernet using DHCP");
+    // no point in carrying on, so do nothing forevermore:
+    while(true);
+  }
+  // print your local IP address:
+  Serial.print("My IP address: ");
+  IPAddress myIPAddress = Ethernet.localIP();
+  for (byte thisByte = 0; thisByte < 4; thisByte++) {
+    // print the value of each byte of the IP address:
+    Serial.print(myIPAddress[thisByte], DEC);
+    Serial.print("."); 
+  }
+  Serial.println();
+}
+
+void loop() {
+
+}
+
+
