diff options
Diffstat (limited to 'libraries/Ethernet/examples/DnsWebClient')
-rw-r--r-- | libraries/Ethernet/examples/DnsWebClient/DnsWebClient.ino | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/libraries/Ethernet/examples/DnsWebClient/DnsWebClient.ino b/libraries/Ethernet/examples/DnsWebClient/DnsWebClient.ino new file mode 100644 index 0000000..5c7a53a --- /dev/null +++ b/libraries/Ethernet/examples/DnsWebClient/DnsWebClient.ino @@ -0,0 +1,76 @@ +/* + DNS and DHCP-based Web client + + This sketch connects to a website (http://www.google.com) + using an Arduino Wiznet Ethernet shield. + + Circuit: + * Ethernet shield attached to pins 10, 11, 12, 13 + + created 18 Dec 2009 + by David A. Mellis + modified 12 April 2011 + by Tom Igoe, based on work by Adrian McEwen + + */ + +#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 }; +char serverName[] = "www.google.com"; + +// 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): +EthernetClient client; + +void setup() { + // start the serial library: + Serial.begin(9600); + // start the Ethernet connection: + if (Ethernet.begin(mac) == 0) { + Serial.println("Failed to configure Ethernet using DHCP"); + // no point in carrying on, so do nothing forevermore: + while(true); + } + // give the Ethernet shield a second to initialize: + delay(1000); + Serial.println("connecting..."); + + // if you get a connection, report back via serial: + + if (client.connect(serverName, 80)) { + Serial.println("connected"); + // Make a HTTP request: + client.println("GET /search?q=arduino HTTP/1.0"); + client.println(); + } + else { + // kf you didn't get a connection to the server: + Serial.println("connection failed"); + } +} + +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); + } + + // if the server's disconnected, stop the client: + if (!client.connected()) { + Serial.println(); + Serial.println("disconnecting."); + client.stop(); + + // do nothing forevermore: + while(true); + } +} + |