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How to interface a 16*4 LCD with PIC18F452 with codes

Over the past week I am puzzled that how to interface a lcd with pic18f452 microcontroller atlast i got it working

Softwares Used

1. mikroc for pic pro
2. proteus vsm simulator (demo version)

Hardwares Used

1. 16*4 LCD
2. PIC18F452
3. 8Mhz Crystal Oscillator
4. and resistors, capacitors, power supply etc.

The Following is the schematic

The Following is the working code

sbit Lcd_RS at RA0_bit;
sbit Lcd_EN at RA2_bit;
sbit Lcd_D7 at RB7_bit;
sbit Lcd_D6 at RB6_bit;
sbit Lcd_D5 at RB5_bit;
sbit Lcd_D4 at RB4_bit;
sbit Lcd_D3 at RB3_bit;
sbit Lcd_D2 at RB2_bit;
sbit Lcd_D1 at RB1_bit;
sbit Lcd_D0 at RB0_bit;
sbit Lcd_RS_Direction at TRISA0_bit;
sbit Lcd_EN_Direction at TRISA2_bit;
sbit Lcd_D7_Direction at TRISB7_bit;
sbit Lcd_D6_Direction at TRISB6_bit;
sbit Lcd_D5_Direction at TRISB5_bit;
sbit Lcd_D4_Direction at TRISB4_bit;
sbit Lcd_D3_Direction at TRISB3_bit;
sbit Lcd_D2_Direction at TRISB2_bit;
sbit Lcd_D1_Direction at TRISB1_bit;
sbit Lcd_D0_Direction at TRISB0_bit;
// End Lcd8 module connections

char * text;

void main(){
    ADCON1 |= 0x07;
    TRISA = 0;
    INTCON = 0;
    INTCON1 = 0;
    INTCON2 = 0;
    CCP2CON = 0;
text = "WWW.ANDRIL.IN"    ;
text = "BLOG.KATHIR.CO.IN"    ;

The above code works only when lcd library in mikroc is enabled
it works only with mikroc
/ Test these codes at your own risk. we are not responsible for any malfunctions/


  1. A Liquid Crystal Display (LCD) is one of the most enduring and fundamental technologies used in most monitors, televisions, tablets and smartphones. TVs and other monitors used to use cathode ray tubes (CRTs) to provide the image onto the screen. Once LCD displays became affordable they quickly displaced the bulky CRTs.

  2. Intimately, the post is actually the sweetest on that worthw hile topic. I harmonise with your conclusions and will certainly eagerly look forward to your incoming updates. Saying thanks definitely will not simply be sufficient, for the extraordinary clarity in your writing. I will certainly perfect away grab your rss feed to stay informed of any updates. Solid work and much success in your business dealings! led futófény


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