以下代碼摘自EtherCard的webClient實例，主要功能是打開指定網址，

Serial.print((const char*) Ethernet::buffer + off);這一行顯示服務器返回的數據。當輸出一個沒有任何格式的頁面的時候，也返回一些服務器的信息，我的想法是過濾掉服務器的信息，看這里誰做過類似的方案。

能取得數據的話，就可以在web上面設置Arduino程序里面的參數了。

ARDUINO

01.//>>> The latest version of this code can be found at https://github.com/jcw/ !!

02.

03.// Demo using DHCP and DNS to perform a web client request.

04.// 2011-06-08 http://opensource.org/licenses/mit-license.php

05.// $Id: webClient.pde 7763 2011-12-11 01:28:16Z jcw $

06.

07.#include

08.

09.// ethernet interface mac address, must be unique on the LAN

10.static byte mymac[] = { 0x74,0x69,0x69,0x2D,0x30,0x31 };

11.

12.byte Ethernet::buffer[700];

13.static uint32_t timer;

14.

15.char website[] PROGMEM = "www.google.com";

16.

17.// called when the client request is complete

18.static void my_callback (byte status, word off, word len) {

19.??Serial.println(">>>");

20.??Ethernet::buffer[off+300] = 0;

21.??Serial.print((const char*) Ethernet::buffer + off);

22.??Serial.println("...");

23.}

24.

25.void setup () {

26.??Serial.begin(57600);

27.??Serial.println("\n[webClient]");

28.

29.??if (ether.begin(sizeof Ethernet::buffer, mymac) == 0)

30.? ? Serial.println( "Failed to access Ethernet controller");

31.??if (!ether.dhcpSetup())

32.? ? Serial.println("DHCP failed");

33.

34.??ether.printIp("IP:??", ether.myip);

35.??ether.printIp("GW:??", ether.gwip);

36.??ether.printIp("DNS: ", ether.dnsip);

37.

38.??if (!ether.dnsLookup(website))

39.? ? Serial.println("DNS failed");

40.

41.??ether.printIp("SRV: ", ether.hisip);

42.}

43.

44.void loop () {

45.??ether.packetLoop(ether.packetReceive());

46.

47.??if (millis() > timer) {

48.? ? timer = millis() + 5000;

49.? ? Serial.println();

50.? ? Serial.print("<<< REQ ");

51.? ? ether.browseUrl(PSTR("/foo/"), "bar", website, my_callback);

52.??}

53.}

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