Files can be served off of an SD card like below, including picture and .js files. Not terribly fast, but so far seems to work.
//zoomkat 1/25/13
//SD server slider test code
//open serial monitor to see what the arduino receives
//address will look like http://192.168.1.102:84/servosld.htm when submited
//for use with W5100 based ethernet shields
//put the servosld.htm, slider.js, bluev_sl.gif,
//and bluev_bg.gif on the SD card
//files at http://web.comporium.net/~shb/servoslider.htm page
#include <SD.h>
#include <SPI.h>
#include <Ethernet.h>
byte mac[] = {
0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //physical mac address
byte ip[] = {
192, 168, 1, 102 }; // ip in lan
byte gateway[] = {
192, 168, 1, 1 }; // internet access via router
byte subnet[] = {
255, 255, 255, 0 }; //subnet mask
EthernetServer server(84); //server port
String readString;
//////////////////////
void setup(){
Serial.begin(9600);
// disable w5100 while setting up SD
pinMode(10,OUTPUT);
digitalWrite(10,HIGH);
Serial.print("Starting SD..");
if(!SD.begin(4)) Serial.println("failed");
else Serial.println("ok");
Ethernet.begin(mac, ip, gateway, gateway, subnet);
//delay(2000);
server.begin();
Serial.println("Ready");
}
void loop(){
// Create a client connection
EthernetClient client = server.available();
if (client) {
while (client.connected()) {
if (client.available()) {
char c = client.read();
//read char by char HTTP request
if (readString.length() < 100) {
//store characters to string
readString += c;
//Serial.print(c);
}
//if HTTP request has ended
if (c == '\n') {
///////////////
Serial.println(readString); //print to serial monitor for debuging
client.println("HTTP/1.1 200 OK"); //send new page
if(readString.indexOf("servosld") >=0) {
client.println("Content-Type: text/html");
client.println(); }
if(readString.indexOf("slider") >=0) {
client.println("Content-Type: application/x-javascript");
client.println(); }
if(readString.indexOf("bluev") >=0) {
client.println("Content-Type: image/gif");
client.println(); }
if(readString.indexOf("servosld") >=0) {
File myFile = SD.open("SERVOSLD.HTM");
if (myFile) {
while (myFile.available()) {
client.write(myFile.read());
}
myFile.close();
}
}
if(readString.indexOf("slider") >=0) {
File myFile = SD.open("slider.js");
if (myFile) {
while (myFile.available()) {
client.write(myFile.read());
}
myFile.close();
}
}
if(readString.indexOf("bluev_sl") >=0) {
File myFile = SD.open("bluev_sl.gif");
if (myFile) {
while (myFile.available()) {
client.write(myFile.read());
}
myFile.close();
}
}
if(readString.indexOf("bluev_bg") >=0) {
File myFile = SD.open("bluev_bg.gif");
if (myFile) {
while (myFile.available()) {
client.write(myFile.read());
}
myFile.close();
}
}
delay(1);
//stopping client
client.stop();
readString="";
}
}
}
}
}