//LCD Pin Definition
sbit LCD_RS at RB4_bit;
sbit LCD_EN at RB5_bit;
sbit LCD_D7 at RB3_bit;
sbit LCD_D6 at RB2_bit;
sbit LCD_D5 at RB1_bit;
sbit LCD_D4 at RB0_bit;
//CD TRIS Definition
sbit LCD_RS_Direction at TRISB4_bit;
sbit LCD_EN_Direction at TRISB5_bit;
sbit LCD_D7_Direction at TRISB3_bit;
sbit LCD_D6_Direction at TRISB2_bit;
sbit LCD_D5_Direction at TRISB1_bit;
sbit LCD_D4_Direction at TRISB0_bit;

void main( void )
{
     //Variables Declaration  .
     unsigned int Radc, DisI;
     float Dis;
     char Text[16];
     //Set the ADC module with pin AN3
     //as positive reference voltage.
     ADCON1 = 0b11000001;
     //Initiation LCD
     Lcd_Init();
     //Clearing the cursor.
     Lcd_Cmd(_LCD_CURSOR_OFF);
     //Printing text.
     Lcd_Out( 1, 1, "Distance:");

     while(1) //Infinite Loop.
     {
              //Reading analog channel 0 .
              Radc=ADC_Read(0);
              //Implementation of the transfer function Equation
              Dis = (14226.02784/Radc)-4.793814433;
              //force the result to an integer value.
              DisI=Dis;
              //convert the integer value to string.
              IntToStr( DisI, Text );
              //Print the sensor reading.
              Lcd_Out( 2, 1, Text );
              //Delay 100m-seconds.
              delay_ms(100);
     }
}