sbit servo at RC1_bit;
sbit servo_dir at TRISC1_bit;
int  i;
void main()
{

  ANSELC=0;
  //TRISB = 0; // PORTB as Ouput Port
  servo=0;
  servo_dir=0;


// begin of infinit loop
do
 {
// if you want to turn one way to 60°( with 4.8V power supply)
// it needs 230mS to do 60° angle  at 4,8V
// so software loop is about 1=20=21mS
// nb of loop > 230/21= near 11
 for (i=0;i<11;i++)
    {
     servo=1;
     Delay_us( 1000);
     servo=0;
     Delay_ms( 20); // interval delay
    }
 //stop and  wait ~2sec
 for (i=0;i<100;i++)
    {
     servo=1;
     Delay_us( 1500);    // neutral => stop ?
     servo=0;
     Delay_ms( 20); // interval delay
    }

 // go reverse way for -120
 // nb of loop > (2x230)/22= near 20
 for (i=0;i<20;i++)
     {
      servo=1;
      Delay_us( 2000);   // reverse way
      servo=0;
      Delay_ms( 20); // interval delay
     }

 // wait ~2sec
 for (i=0;i<100;i++)
     {
      servo=1;
      Delay_us( 1500);    // neutral => stop ?
      servo=0;
      Delay_ms( 20); // interval delay
      }
}
 while(1) ;
}