File content as of revision 0:e26dfd507000:

#include "mbed.h"
#include "SHTx/sht15.hpp"
#include "SDFileSystem.h"
#include "EthernetInterface.h"

//SPI-mosi,miso,sclk,DigitalOut-cs, name used to access the filesystem 
SDFileSystem sd(p5, p6, p7, p8, "sd1"); 

//Terminal Port to display the file back
Serial pc(USBTX, USBRX);
DigitalOut busy(LED1);

// Use p28-sda--data,p27-scl--sck
SHTx::SHT15 sensor(p28, p27);

EthernetInterface eth;
#define ECHO_SERVER_PORT   7

int main() {
    
    /*FILE *fw = fopen("/sd1/mydir/sdtest.txt", "w");
    if(fw == NULL) {
        pc.printf("Could not open file for write\n");
    }
    else{
        fprintf(fw, "Hello SD file World!LOLOLOL\n");
        fclose(fw); 
    }
    //Begin reading from the SD file
    pc.printf("Begin reading from the SD file\n");
    FILE *fr = fopen("/sd1/mydir/sdtest.txt", "r");
    if(fr== NULL) {
        pc.printf("Could not open file for read\n");
    }
    else{
        while(!feof(fr)){
            pc.putc(fgetc(fr));
        }
        fclose(fr);
    }
    */
    
    // Speed things up a bit.
    sensor.setOTPReload(false);
    sensor.setResolution(true);

    eth.init(); //Use DHCP
    eth.connect(7000);//Longer timeout here
    //print out the MAC address first
    printf("MAC Address is %s\r\n", eth.getMACAddress());
    printf("IP Address is %s\r\n", eth.getIPAddress());
    //IP address is 130.207.234.205
     
    
    TCPSocketServer server;
    server.bind(ECHO_SERVER_PORT);
    server.listen();
    
    while(1) {
        printf("\nWait for new connection...\r\n");
        TCPSocketConnection client;
        server.accept(client);
        client.set_blocking(false); // Timeout after (5)s
        
        printf("Connection from: %s\r\n", client.get_address());
        
        busy = true;
        sensor.update();
        busy = false;
        char buffer[256]={0};
        
        // Temperature in celcius
        sensor.setScale(false);
        sprintf(buffer,"Temperature [ %3.2f C ]\r\nHumdity     [ %3.2f %% ]\r\n\n", sensor.getTemperature(), sensor.getHumidity());
        
        int n = sizeof(buffer);
        client.send_all(buffer, n);
        
        client.close();
        printf(" Connection over\r\n");
        
    }
}