File content as of revision 1:ff775bd8e8fe:

#include "mbed.h"

DigitalOut myled(LED1);

int main() {
    double on, off;
    on = 0.002;
    off = 0.002;
    
    while (1)
    {
          for (int i = 0; i < 200; i++)
        {
            myled = 0;
            wait(on);
            myled = 1;
            wait(off);
            
            on += 0.00001;
            off -= 0.00001;
        }
        
            
        for (int i = 0; i < 400; i++)
        {
            myled = 0;
            wait(on);
            myled = 1;
            wait(off);
            on -= 0.00001;
            off += 0.00001;
        }  
        
          for (int i = 0; i < 200; i++)
            {
            myled = 0;
            wait(on);
            myled = 1;
            wait(off);
            
            on += 0.00001;
            off -= 0.00001;
            }
        
    }
    
    
}