53 lines
1.5 KiB
Arduino
53 lines
1.5 KiB
Arduino
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// This demo does web requests via DNS lookup, using a fixed gateway.
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// 2010-11-27 <jc@wippler.nl> http://opensource.org/licenses/mit-license.php
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#include <EtherCard.h>
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#define REQUEST_RATE 5000 // milliseconds
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// ethernet interface mac address
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static byte mymac[] = { 0x74,0x69,0x69,0x2D,0x30,0x31 };
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// ethernet interface ip address
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static byte myip[] = { 192,168,1,203 };
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// gateway ip address
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static byte gwip[] = { 192,168,1,1 };
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// remote website name
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const char website[] PROGMEM = "google.com";
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byte Ethernet::buffer[300]; // a very small tcp/ip buffer is enough here
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static long timer;
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// called when the client request is complete
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static void my_result_cb (byte status, word off, word len) {
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Serial.print("<<< reply ");
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Serial.print(millis() - timer);
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Serial.println(" ms");
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Serial.println((const char*) Ethernet::buffer + off);
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}
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void setup () {
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Serial.begin(57600);
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Serial.println("\n[getViaDNS]");
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if (ether.begin(sizeof Ethernet::buffer, mymac) == 0)
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Serial.println( "Failed to access Ethernet controller");
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ether.staticSetup(myip, gwip);
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if (!ether.dnsLookup(website))
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Serial.println("DNS failed");
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ether.printIp("Server: ", ether.hisip);
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timer = - REQUEST_RATE; // start timing out right away
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}
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void loop () {
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ether.packetLoop(ether.packetReceive());
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if (millis() > timer + REQUEST_RATE) {
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timer = millis();
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Serial.println("\n>>> REQ");
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ether.browseUrl(PSTR("/foo/"), "bar", website, my_result_cb);
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}
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}
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