LDR (ligh sensor) and blink with arduino and minibloq

Follow the code; (Segue o código):

#include "stdlib.h"
#include "IRremote.h"
#include "pitches.h"
#include "Minibloq.h"

void setup()
{
      initBoard();
      float s0 = 0;
      while(true)
      {
                s0 = AnalogRead(sensor0);
               DigitalWrite(D13_LED, true);
               delay((s0*5));
               DigitalWrite(D8, false);
               delay(((1/s0)*500));
               DigitalWrite(D8, true);
               delay(((1/s0)*500));
               DigitalWrite(D13_LED, false);
               delay((s0*5));
      }
}
void loop()
{
}