#include <wiringPi.h>
#include <stdio.h>
#include <stdlib.h>

int i,j;

int main (void)
{

  // check wiringPi setup
  if (wiringPiSetup() == -1)
  {
        printf("wiringPi-Error\n");
    exit(1);
  }
       pinMode(1, PWM_OUTPUT);
       pwmSetMode(PWM_MODE_MS);
       pwmSetClock(1920);
       pwmSetRange(200);
       for(i=0;i<2;i++)
         {
          pwmWrite(1,6);
          sleep(1);
          pwmWrite(1,15);
          sleep(1);
          pwmWrite(1,25);
          sleep(1);
          pwmWrite(1,15);
          sleep(1);
         }
         for(i=6;i<26;i++)
           {
            pwmWrite(1,i);
            for (j=0;j<30000000;j++);
           }

}