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LCD Module Display 4 line For CSS Compiler

Enhanced visuals: CSS Compiler project for 4-Line LCD Module optimizes Arduino displays for clear and versatile information output.

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Tags: #css#display#lcd
Ibrar Ayyub By Ibrar Ayyub
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CategoryPeripheral Tutorials
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Summary of LCD Module Display 4 line For CSS Compiler

This article provides a PIC16F877 microcontroller C code snippet for an educational project demonstrating LCD interfacing. The program initializes an 8-bit ADC, displays a welcome screen with technical details, and then loops to show four predefined integer values on the LCD display in hexadecimal-to-BCD format.

Parts used in the Electrical Power Display Project:

  • PIC16F877 Microcontroller
  • LCD Module (4-bit interface)
  • C Compiler for PIC (CCS)
  • Lcd_4bit.c Library File
C source
 
#include <16F877.h>
#device adc=8
#fuses NOWDT,HS, NOPUT, NOPROTECT, BROWNOUT, NOLVP, NOCPD, NOWRT, NODEBUG
#use delay(clock=4000000)

#include <Lcd_4bit.c>
int16 value1,value2,value3,value4;
void main(){
   setup_adc_ports(NO_ANALOGS);
   setup_adc(ADC_OFF);
   set_tris_d(0x00);
   lcd_init();
   lcd_row_col(1,0);
   lcd_putc("Electrical Power"); 
   delay_ms(20); 
   lcd_row_col(2,0);
   lcd_putc("Loei Technical ");
   delay_ms(20); 
   lcd_row_col(3,0);
   lcd_putc("www.kchimicro ");   
   delay_ms(20); 
   lcd_row_col(4,0);
   lcd_putc("Pic controller ");      
   delay_ms(5000);   
   lcd_Clear();
    lcd_init();
while(true){        
        value1 = 2568;
        value2 = 1278;
        value3 = 8887;
        value4 = 9997;        
//==================================       
        lcd_row_col(1,0);
        Lcd_putc("value1=");
        hex_bcd(value1);lcd_row_col(1,8);sent_Lcd();          
        delay_ms(30); 
//==================================        
        lcd_row_col(2,0);
        Lcd_putc("Value2=");
        hex_bcd(value2);lcd_row_col(2,8);sent_Lcd();          
        delay_ms(30);              
//==================================       
        lcd_row_col(3,0);
        Lcd_putc("Value3=");
        hex_bcd(value3);lcd_row_col(3,8);sent_Lcd();          
        delay_ms(30); 
//==================================        
        lcd_row_col(4,0);
        Lcd_putc("Value4=");
        hex_bcd(value4);lcd_row_col(4,8);sent_Lcd();          
        delay_ms(30);  
        lcd_row_col(4,13);
        Lcd_putc("mat");          
        delay_ms(30);  
   }
}

 

  • What microcontroller is used in this code?
    The code uses the PIC16F877 microcontroller as indicated by the include statement.
  • How many bits is the ADC configured for?
    The ADC is set to 8 bits using the device directive #device adc=8.
  • What library file is included for the LCD?
    The project includes the Lcd_4bit.c library file.
  • What clock speed is set for the delay function?
    The delay is configured for a 4000000 Hz clock frequency.
  • Does the code use analog inputs?
    No, the setup_adc_ports function explicitly sets NO_ANALOGS.
  • How are the values displayed on the LCD?
    The values are converted using hex_bcd and sent to the LCD via sent_Lcd.
  • What text appears on the first line of the initial display?
    The text Electrical Power is displayed on the first row.
  • What happens after the welcome screen is shown?
    The LCD is cleared and the main loop begins displaying variable values.
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Ibrar Ayyub

Ibrar Ayyub

I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough...