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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"
104 lines
3.0 KiB
C++
104 lines
3.0 KiB
C++
/*
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Web Server
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A simple web server that shows the value of the analog input pins.
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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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* Analog inputs attached to pins A0 through A5 (optional)
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created 18 Dec 2009
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by David A. Mellis
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modified 9 Apr 2012
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by Tom Igoe
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modified 02 Sept 2015
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by Arturo Guadalupi
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*/
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#include <SPI.h>
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#include <Ethernet.h>
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// Enter a MAC address and IP address for your controller below.
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// The IP address will be dependent on your local network:
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byte mac[] = {
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0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED
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};
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IPAddress ip(192, 168, 1, 177);
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// Initialize the Ethernet server library
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// with the IP address and port you want to use
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// (port 80 is default for HTTP):
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EthernetServer server(80);
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void setup() {
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// Open serial communications and wait for port to open:
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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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// start the Ethernet connection and the server:
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Ethernet.begin(mac, ip);
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server.begin();
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Serial.print("server is at ");
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Serial.println(Ethernet.localIP());
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}
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void loop() {
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// listen for incoming clients
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EthernetClient client = server.available();
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if (client) {
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Serial.println("new client");
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// an http request ends with a blank line
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boolean currentLineIsBlank = true;
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while (client.connected()) {
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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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// if you've gotten to the end of the line (received a newline
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// character) and the line is blank, the http request has ended,
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// so you can send a reply
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if (c == '\n' && currentLineIsBlank) {
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// send a standard http response header
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client.println("HTTP/1.1 200 OK");
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client.println("Content-Type: text/html");
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client.println("Connection: close"); // the connection will be closed after completion of the response
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client.println("Refresh: 5"); // refresh the page automatically every 5 sec
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client.println();
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client.println("<!DOCTYPE HTML>");
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client.println("<html>");
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// output the value of each analog input pin
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for (int analogChannel = 0; analogChannel < 6; analogChannel++) {
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int sensorReading = analogRead(analogChannel);
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client.print("analog input ");
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client.print(analogChannel);
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client.print(" is ");
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client.print(sensorReading);
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client.println("<br />");
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}
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client.println("</html>");
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break;
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}
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if (c == '\n') {
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// you're starting a new line
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currentLineIsBlank = true;
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} else if (c != '\r') {
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// you've gotten a character on the current line
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currentLineIsBlank = false;
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}
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}
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}
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// give the web browser time to receive the data
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delay(1);
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// close the connection:
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client.stop();
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Serial.println("client disconnected");
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Ethernet.maintain();
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}
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}
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