prepaid electricity billing system using gsm modem

Hello everyone,

I am working on a project for prepaid electricity billing system using gsm modem, this is the source code, but I don have the header files. Can anyone mail the appropriate header files for this source code.

I basically need lcd.h and gsm modem interfacing functions that has to be included. Please, its urgent ..

#include<reg51.h>
#include"uart.h"
#include"lcd.h"

code char num[]="9916443994";          //  BESCOM Phone Number                                                  unsigned char number[10];
static int total=0;

sbit sensor=P2^7;                          // Metal Sensor Input
sbit bulb=P0^0;                            // Bulb Output

void delay()
{
        unsigned int i;
        for(i=0;i<2500;i++);               // Delay function
}
void delay1()
{
        unsigned int i;
        for(i=0;i<35000;i++);              // Delay function
}

void main()
{
        unsigned char amt,q,y[3],i,temp,k;

        bulb=0;

        lcd_init();
        display("Pre-Paid Electri");       // Display Function
        nextline();
        display("  city Billing  ");
        delay1();
        delay1();
        lcd_init();
        display("  System Using  ");
        nextline();
        display("   GSM Mobile   ");
        delay1();
        delay1();
        delay1();
        lcd_init();
        display("Project Done By");
        nextline();
        display("     Reshma     ");
        delay1();
        delay1();
        lcd_init();
        display("   Hemalatha   ");
        nextline();
        display("    Sheetal    ");
        delay1();
        delay1();
        delay1();

        serial_init();
        transmit("at+cmgf=1");              // To make GSM in text mode
        delay();
        transmit_byte(0x0d);                // ASCII value of ENTER
        delay();
        transmit_byte(0x0a);                // ASCII value of NEW LINE or LINE FEED
        delay();
        while(1)
        {
                lcd_init();
                display("Waiting for");
                nextline();
                display(" Response ");
                transmit("at+cnmi=2,2,0,0,0");
                delay();
                transmit_byte(0x0d);        // ASCII value of ENTER
                delay();
                transmit_byte(0x0a);        // ASCII value of NEW LINE or LINE FEED
                delay();


        for(i=0;i<19;i++)
                {
                        while(RI==0);            //Junk DATA
                        q=SBUF;
                        RI=0;
                }
                for(i=0;i<10;i++)
                {
                        while(RI==0);
                        number[i]=SBUF;
                        RI=0;
                }
                        amt=receive_byte();
                while(1)

                {
                while(RI==0);
                        q=SBUF;
                        RI=0;
                        if(q=='$')
                        {


                                while(RI==0);
                                amt=SBUF;
                                RI=0;
                                break;


                }
                }
                lcd_init();

                k=0;
                for(i=0;i<10;i++)
                {
                        if(number[k]!=num[i])
                                break;
                        else
                                k++;
                }
                if(k==10)
                {
                        lcd_init();
                        display("Perfect Owner");
                        for(i=0;i<10;i++)
                                lcd_delay();
                        nextline();
                        if(amt=='1')
                        {
                                total=total+100;
                                display("Amt = Rs.100");
                                bulb=1;
                          }
                        else if(amt=='2')
                        {
                                total=total+200;
                                display("Amt = Rs.200");
                                bulb=1;
                        }
                        else
                                display("Amt is not valid");

}