untitled.c

remote notice board implementation using GSM source code with schematics are provided

#include<mega8535.h>
#include<delay.h>
#include<string.h>

#define RS PORTA.4
#define RW PORTA.5
#define EN PORTA.6

#define LCD_DATA PORTC

void LCD_CALL()
  {
        EN = 0;
        delay_ms(10);
        EN = 1;
  } 
  
void init_LCD()
 {
        RS = 0;
        
        LCD_DATA = 0x38;
        LCD_CALL();
        delay_ms(2);
        
        LCD_DATA = 0x0E;
        LCD_CALL();
        delay_ms(2);
        
        LCD_DATA = 0x01;
        LCD_CALL();
        delay_ms(2);
        
        LCD_DATA = 0x06;
        LCD_CALL();
        delay_ms(2);
        
        
        LCD_DATA = 0x80;
        LCD_CALL();
        delay_ms(10);
        
        //LCD_DATA = 0xC0;
        //LCD_CALL();
  }
 
void LCD_DAT(unsigned char data)
{
        RS = 1;
        LCD_DATA = data;
        LCD_CALL();
         
} 
 
 void clear_lcd(void)
 {
      LCD_DATA = 0x01;
      LCD_CALL();
      delay_ms(20);
 }
 
 
void main()
{       
        int i;
        unsigned char a[]="I LOVE MY INDIA "; 
        DDRC = 0xFF;
        DDRA = 0xFF;
        RW = 0;
         //init_LCD();
        while(1)
        {
         
        PORTA = 0x03;
        delay_ms(100);
        PORTA = 0x00;
        init_LCD();
        //LCD_DAT('R'); 
        for(i=0;a[i]!='\0';i++) 
        {
        LCD_DAT(a[i]);
        delay_ms(100);
         }
         clear_lcd();
          delay_ms(100);
         } 
           
        
 }