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9eaea4205d
According to #3786 removed the reference to Leonardo only in while(!Serial) of the examples. Changed in in "wait for serial port to connect. Needed for native USB port only"
108 lines
2.9 KiB
C++
108 lines
2.9 KiB
C++
/*
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Repeating Web client
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This sketch connects to a a web server and makes a request
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using a Wiznet Ethernet shield. You can use the Arduino Ethernet shield, or
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the Adafruit Ethernet shield, either one will work, as long as it's got
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a Wiznet Ethernet module on board.
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This example uses DNS, by assigning the Ethernet client with a MAC address,
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IP address, and DNS address.
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Circuit:
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* Ethernet shield attached to pins 10, 11, 12, 13
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created 19 Apr 2012
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by Tom Igoe
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modified 21 Jan 2014
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by Federico Vanzati
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http://www.arduino.cc/en/Tutorial/WebClientRepeating
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This code is in the public domain.
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*/
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#include <SPI.h>
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#include <Ethernet.h>
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// assign a MAC address for the ethernet controller.
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// fill in your address here:
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byte mac[] = {
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0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED
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};
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// fill in an available IP address on your network here,
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// for manual configuration:
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IPAddress ip(192, 168, 1, 177);
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// fill in your Domain Name Server address here:
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IPAddress myDns(1, 1, 1, 1);
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// initialize the library instance:
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EthernetClient client;
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char server[] = "www.arduino.cc";
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//IPAddress server(64,131,82,241);
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unsigned long lastConnectionTime = 0; // last time you connected to the server, in milliseconds
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const unsigned long postingInterval = 10L * 1000L; // delay between updates, in milliseconds
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// the "L" is needed to use long type numbers
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void setup() {
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// start serial port:
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Serial.begin(9600);
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while (!Serial) {
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; // wait for serial port to connect. Needed for native USB port only
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}
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// give the ethernet module time to boot up:
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delay(1000);
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// start the Ethernet connection using a fixed IP address and DNS server:
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Ethernet.begin(mac, ip, myDns);
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// print the Ethernet board/shield's IP address:
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Serial.print("My IP address: ");
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Serial.println(Ethernet.localIP());
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}
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void loop() {
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// if there's incoming data from the net connection.
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// send it out the serial port. This is for debugging
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// purposes only:
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if (client.available()) {
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char c = client.read();
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Serial.write(c);
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}
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// if ten seconds have passed since your last connection,
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// then connect again and send data:
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if (millis() - lastConnectionTime > postingInterval) {
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httpRequest();
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}
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}
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// this method makes a HTTP connection to the server:
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void httpRequest() {
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// close any connection before send a new request.
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// This will free the socket on the WiFi shield
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client.stop();
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// if there's a successful connection:
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if (client.connect(server, 80)) {
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Serial.println("connecting...");
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// send the HTTP PUT request:
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client.println("GET /latest.txt HTTP/1.1");
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client.println("Host: www.arduino.cc");
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client.println("User-Agent: arduino-ethernet");
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client.println("Connection: close");
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client.println();
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// note the time that the connection was made:
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lastConnectionTime = millis();
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} else {
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// if you couldn't make a connection:
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Serial.println("connection failed");
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}
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}
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