#include<reg51.h>

#define display_port P2  // Data pins connected to port 2 on microcontroller

sbit rs = P3^2;  // RS pin connected to pin 2 of port 3
sbit rw = P3^3;  // RW pin connected to pin 3 of port 3
sbit e =  P3^4;  // E pin connected to pin 4 of port 3

void msdelay(unsigned int time)  // Function for creating delay in milliseconds
{
    unsigned i, j;
    for(i = 0; i < time; i++)
        for(j = 0; j < 1275; j++);
}

void lcd_cmd(unsigned char command)  // Function to send command instruction to LCD
{
    display_port = command;
    rs = 0;
    rw = 0;
    e = 1;
    msdelay(1);
    e = 0;
}

void lcd_data(unsigned char disp_data)  // Function to send display data to LCD
{
    display_port = disp_data;
    rs = 1;
    rw = 0;
    e = 1;
    msdelay(1);
    e = 0;
}

void lcd_init()  // Function to prepare the LCD and get it ready
{
    lcd_cmd(0x38);  // Using 2 lines and 5x7 matrix of LCD
    msdelay(10);
    lcd_cmd(0x0F);  // Turn display ON, cursor blinking
    msdelay(10);
    lcd_cmd(0x01);  // Clear screen
    msdelay(10);
    lcd_cmd(0x81);  // Bring cursor to position 1 of line 1
    msdelay(10);
}

void main()
{
    unsigned char a[] = "EKNM GPTC TKPR";
    unsigned char b[] = "Electronics Dept";

    int l = 0;
    lcd_init();

    while(a[l] != '\0') // Display first line
    {
        lcd_data(a[l]);
        l++;
        msdelay(30);
    }

    lcd_cmd(0xC0); // Move cursor to second line
    l = 0;
    while(b[l] != '\0') // Display second line
    {
        lcd_data(b[l]);
        l++;
        msdelay(30);
    }
}