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78 lines
2.9 KiB
C++
78 lines
2.9 KiB
C++
#include <SPI.h>
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#include <Ethernet.h>
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#include <SD.h>
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//#define Serial SerialUSB
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// MAC address from Ethernet shield sticker under board
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byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFF, 0xFD };
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IPAddress ip(10, 0, 0, 50); // IP address, may need to change depending on network
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EthernetServer server(80); // create a server at port 80
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File webFile;
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void setup()
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{
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Ethernet.begin(mac); // initialize Ethernet device
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server.begin(); // start to listen for clients
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Serial.begin(9600); // for debugging
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// initialize SD card
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Serial.println("Initializing SD card...");
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if (!SD.begin(4)) {
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Serial.println("ERROR - SD card initialization failed!");
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return; // init failed
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}
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Serial.println("SUCCESS - SD card initialized.");
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// check for index.htm file
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if (!SD.exists("index.htm")) {
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Serial.println("ERROR - Can't find index.htm file!");
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return; // can't find index file
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}
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Serial.println("SUCCESS - Found index.htm file.");
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}
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void loop()
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{
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EthernetClient client = server.available(); // try to get client
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if (client) { // got client?
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boolean currentLineIsBlank = true;
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while (client.connected()) {
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if (client.available()) { // client data available to read
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char c = client.read(); // read 1 byte (character) from client
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// last line of client request is blank and ends with \n
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// respond to client only after last line received
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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");
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client.println();
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// send web page
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webFile = SD.open("index.htm"); // open web page file
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if (webFile) {
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while(webFile.available()) {
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client.write(webFile.read()); // send web page to client
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}
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webFile.close();
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}
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break;
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}
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// every line of text received from the client ends with \r\n
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if (c == '\n') {
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// last character on line of received text
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// starting new line with next character read
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currentLineIsBlank = true;
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}
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else if (c != '\r') {
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// a text character was received from client
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currentLineIsBlank = false;
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}
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} // end if (client.available())
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} // end while (client.connected())
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delay(1); // give the web browser time to receive the data
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client.stop(); // close the connection
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} // end if (client)
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}
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