In this tutorial I will show you how to scrolling text in LM16x2 LCD using PIC microcontroller.

You can watch the video and read the written tutorial below.

 

In this tutorial I am use PIC16F877A microcontroller & LM16X2 LCD display.  PIC16F877A microcontroller 8KB flash program memory & 256 Byte EEPROM memory.

 

 

 

LM 16X2 LCD Display

LCD means Liquid Crystal Display. In this project I am use LM 16X2 LCD Display. 16X2 means 16 column & 2 row in this display. There are 16*2 = 32 segment in this display. Each segment hold 8x2 dot patterns. 

 

Circuit Diagram

 

In this tutorial I am use Mikro C Pro For PIC compiler for coding. Mikro C Pro For Pic provide  a comfortable LCD library for LCD interfacing.
 

MikroC pro for PIC library

 

MikroC code

// Lcd module connections
sbit LCD_RS at RB0_bit;
sbit LCD_EN at RB1_bit;
sbit LCD_D4 at RB2_bit;
sbit LCD_D5 at RB3_bit;
sbit LCD_D6 at RB4_bit;
sbit LCD_D7 at RB5_bit;

sbit LCD_RS_Direction at TRISB0_bit;
sbit LCD_EN_Direction at TRISB1_bit;
sbit LCD_D4_Direction at TRISB2_bit;
sbit LCD_D5_Direction at TRISB3_bit;
sbit LCD_D6_Direction at TRISB4_bit;
sbit LCD_D7_Direction at TRISB5_bit;
//end LCD module connection

char txt1[]= "WELCOME TO" ;
char txt2[] = "MINA TECHNOLOGY" ;
char i ;                                                                          // loop variable
void main() {
     Lcd_Init();                                                               //initialize lcd module;
     Lcd_Cmd(_LCD_CLEAR);                                    //clear display
     Lcd_Cmd(_LCD_CURSOR_OFF);                       // cursor off
     Lcd_Out(1,3,txt1);                                                 //write text 1st row
     Lcd_Out(2,1,txt2);                                                  //write text 2nd row
     delay_ms(2000);
     // Moving text
     for(i=0;i<4;i++){
              Lcd_Cmd(_LCD_SHIFT_RIGHT);           // text shift right
              Delay_ms(500);                                          // 500ms delay
              }
     while(1){
              for(i=0;i<8;i++){
                      Lcd_Cmd(_LCD_SHIFT_LEFT);       // text shift left
                      Delay_ms(500);
                      }
              for(i=0;i<8;i++){
                      Lcd_Cmd(_LCD_SHIFT_RIGHT);      //text shift right
                      Delay_ms(500);
                      }
              }
    
    
}

 

Download free source code

 

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