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Backported Ethernet library from 1.5.x
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@ -1,17 +1,17 @@
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/*
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DHCP-based IP printer
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This sketch uses the DHCP extensions to the Ethernet library
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to get an IP address via DHCP and print the address obtained.
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using an Arduino Wiznet Ethernet shield.
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using an Arduino Wiznet Ethernet shield.
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Circuit:
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* Ethernet shield attached to pins 10, 11, 12, 13
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created 12 April 2011
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modified 9 Apr 2012
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by Tom Igoe
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*/
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#include <SPI.h>
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@ -19,19 +19,20 @@
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// Enter a MAC address for your controller below.
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// Newer Ethernet shields have a MAC address printed on a sticker on the shield
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byte mac[] = {
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0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02 };
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byte mac[] = {
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0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02
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};
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// Initialize the Ethernet client library
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// with the IP address and port of the server
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// with the IP address and port of the server
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// that you want to connect to (port 80 is default for HTTP):
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EthernetClient client;
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void setup() {
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// Open serial communications and wait for port to open:
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// Open serial communications and wait for port to open:
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Serial.begin(9600);
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// this check is only needed on the Leonardo:
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while (!Serial) {
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while (!Serial) {
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; // wait for serial port to connect. Needed for Leonardo only
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}
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@ -39,7 +40,7 @@ void setup() {
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if (Ethernet.begin(mac) == 0) {
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Serial.println("Failed to configure Ethernet using DHCP");
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// no point in carrying on, so do nothing forevermore:
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for(;;)
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for (;;)
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;
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}
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// print your local IP address:
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@ -47,7 +48,7 @@ void setup() {
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for (byte thisByte = 0; thisByte < 4; thisByte++) {
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// print the value of each byte of the IP address:
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Serial.print(Ethernet.localIP()[thisByte], DEC);
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Serial.print(".");
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Serial.print(".");
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}
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Serial.println();
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}
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