I tried using the SD.h library but I am not able to use the library for my code. This is a picture of my code.
#include <dht.h>
#define dht_apin A0
#include <SPI.h>
#include <SD.h>
#include <Ethernet.h>
#include <LiquidCrystal.h>
File root;
// initialize the library with the numbers of the interface pins
byte mac[] = {I HIDE THIS}; // physical mac address
byte ip[] = {I HIDE THIS}; // ip in lan (that's what you need to use in your browser. ("I HIDE THIS")
byte gateway[] = {I HIDE THIS}; // internet access via router
byte subnet[] = {I HIDE THIS}; // subnet mask
EthernetServer server(10000); // server port
String readString;
dht DHT;
int Temp;
void setup() {
// set up the LCD's number of columns and rows:
Serial.begin(9600);
while (!Serial) {
;
}
delay(100);
Serial.println("DHT11 Humidity & temperature Sensor\n\n");
Ethernet.begin(mac, ip, gateway, subnet);
server.begin();
Serial.print("server is at ");
Serial.println(Ethernet.localIP());
Serial.print("Initializing SD card...");
if (!SD.begin(4)) {
Serial.println("initialization failed!");
return;
}
Serial.println("initialization done.");
Serial.println("done!");
}
void loop() {
EthernetClient client = server.available(); // Create a client connection
if (client) {
while (client.connected()) {
if (client.available()) {
char c = client.read();
if (readString.length() < 100) { //read char by char HTTP request
readString += c;
}
if (c == '\n') { //if HTTP request has ended
Temp = 0;
switch (Temp){
case 0:
DHT.read22(dht_apin);
Serial.print("Vochtigheid = ");
Serial.print(DHT.humidity);
Serial.print("% ");
Serial.print("Temperatuur = ");
Serial.print(DHT.temperature);
delay(500);
File dataFile = SD.open("Icon.png");
client.println("HTTP/1.1 200 OK"); //send new page
client.println("Content-Type: text/html");
client.println();
client.println("<HTML>");
client.println("<HEAD>");
client.println("<TITLE>Home Damian</TITLE>");
client.println("<meta http-equiv=\"refresh\"content=\"1 \">");
client.println("<meta name=\"apple-mobile-web-app-title\" content=\"Home\">");
client.println("<link rel=\"apple-touch-icon\" href=\"/Icon.png"/>");
client.println("<meta name=\"apple-mobile-web-app-capable\" content=\"yes\">");
client.println("<meta name=\"apple-mobile-web-app-status-bar-style\" content=\"black-translucent\">");
client.println("</HEAD>");
client.println("<BODY bgcolor=\"#273B46\">");
client.println("<br />");
client.println("<p><font color=\"white\">Temperatuur = </p>");
client.println(DHT.temperature,1);
client.print("°C");
client.println("<p></p>");
client.println("<p><font color=\"white\">Vochtigheid = </p>");
client.println(DHT.humidity,1);
client.print("%");
client.println("<br />");
client.println("</BODY>");
client.println("</HTML>");
delay(1000);
Serial.println("OK");
Temp = 0;
client.stop();
}
}
}
}
}
}
void printDirectory(File dir, int numTabs) {
while (true) {
File entry = dir.openNextFile();
if (! entry) {
// no more files
break;
}
for (uint8_t i = 0; i < numTabs; i++) {
Serial.print('\t');
}
Serial.print(entry.name());
if (entry.isDirectory()) {
Serial.println("/");
printDirectory(entry, numTabs + 1);
} else {
// files have sizes, directories do not
Serial.print("\t\t");
Serial.println(entry.size(), DEC);
}
entry.close();
}
}