How to scrolling Lcd display use PIC Microcontroller and Mikro C

In this tutorial I will show you how to interface LCD with 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. 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. 

LM16X2 LCD Display

LM 16X2 LCD Display it has16 pin connection.

PIN CONFIGURATION

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.

MIKRO C PRO FOR PIC LCD Library

The mikroC PRO for PIC provides a library for communication with Lcds (with HD44780 compliant controllers) through the 4-bit interface.

External dependencies of LCD Library

The following variables must be defined in all projects using Lcd library. Lcd module connections example below.

     // Lcd moude connection start

• 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 ;

    // Lcd module connection end

Lcd Library Routine

• Lcd_Init
• Lcd_Out
• Lcd_Out_Cp
• Lcd_Chr
• Lcd_Chr_Cp
• Lcd_Cmd

Circuit Diagram

Circuit diagram of lcd module connection

Mikro C 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);
	}
	}
	}

view raw scrolling Lcd.html hosted with ❤ by GitHub

Download

You can download Mickro C file here. click the download button.

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