File content as of revision 2:8a192ca34bac:

#include "mbed.h"
#include "ATParser.h"
#include "TSL2561.h"
#include <string.h>
#include <stdlib.h>

BufferedSerial pc(SERIAL_TX, SERIAL_RX);
BufferedSerial device(PA_9, PA_10);  // tx, rx
DigitalOut myled(LED1);
TSL2561 lightsensor(PB_7,PB_6);

int main()
{
    pc.baud(115200);
    device.baud(115200);
    pc.printf("Hola\n\r");
    ATParser at = ATParser(device, "\n\r", 256, 2000, false);
    if(at.send("AT") && at.recv("\n\r"))
    {
        pc.printf("Bueno#1\n\r");
        myled = !myled;
    }
    else
        pc.printf("Nope#1\n\r"); 
    if(at.send("AT+NI=1,MTCDT-19400691") && 1) 
        pc.printf("Bueno#2\n\r");
    else  
       pc.printf("Nope#2\n\r");
    if(at.send("AT+NK=1,MTCDT-19400691") && 1)
        pc.printf("Bueno #3\n\r");
    else
        pc.printf("Nope #3\n\r");
    if(at.send("AT+FSB=1") && 1)
        pc.printf("Bueno #4\n\r");
    else
        pc.printf("Nope #4\n\r");
    if(at.send("AT+JOIN")&& 1)
        pc.printf("Bueno #5\n\r");
    else
        pc.printf("Nope #5\n\r");
    
    char devID[24];
    if(at.send("AT+DI") && at.recv("%s\r\n\r\nOK", &devID))
        pc.printf("Bueno#6\n\r");
    else
        pc.printf("Nope #6\n\r");
    
    int i = 0;
    char *day[24];

    
    while(1)
    {    
        float lightnum = lightsensor.lux();
        pc.printf("light = %.5f\n\r", lightnum);
        //char light = malloc(10);
        //light = new char [8];
        day[i] = new char[8];
        int n;
        n = sprintf(day[i], "%.5f", lightnum);
        //pc.printf("String transfer worked: %s\n\r", day[i]);
        i++;
        if (i == 24)
        {
            int j;
            for(j = 0; j < 24; j++)
            {
                if(at.send("AT+SEND=\"%s\"", day[j]) && 1)
                {    
                    //pc.printf("%s\n\r", day[j]);
                    pc.printf("success\n\r");
                    //wait(.1);
                }
                else
                    pc.printf("iserox\n\r");
            }
            i = 0;
            for(j=0; j < 24; j++)
            {
                free(day[j]);
            }
            
        }
        wait(2);
    }
}