# INCLUDE <16f628a.h>
# USE DELAY (CLOCK=4000000)
# FUSES XT ,NOWDT , PUT , BROWNOUT , NOLVP
# USE FAST_IO(B)

   VOID MAIN (){
   INT a = 0;
   set_tris_b (0b00000001);

   WHILE (TRUE){   
      IF (input (pin_B0) == 1){
         delay_ms (300);
         a = a + 1;
      }

      IF (a == 1){
         delay_ms (50);
         output_high (PIN_B7);
      }

      IF (a == 2){
         delay_ms (50);
         output_low (PIN_B7);
         a = 0;
      }

   }
   }