LCD interface with PIC16F877A Microcontroller

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:

Download

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

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