#include <LiquidCrystal.h>
#include "Bigfonte.h" 

long i  = 0;
int col = 0;

const int lcdD7Pin = 7; // LCD D7 pin
const int lcdD6Pin = 6; // LCD D6 pin
const int lcdD5Pin = 5; // LCD D5 pin
const int lcdD4Pin = 4; // LCD D4 pin
const int lcdEPin =  9; // LCD E  Pin
const int lcdRSPin = 8; // LCD RS pin

LiquidCrystal lcd(lcdRSPin, lcdEPin, lcdD4Pin, lcdD5Pin, lcdD6Pin, lcdD7Pin); // construct LCD object
LCDBigNumbers lcdNum(&lcd, 0, 0); //inclui uma barra no lcd, primeira linha, coluna 8. tamanho 8

void setup()
{
  lcd.begin(16, 2);
  lcd.setCursor(0, 0);
  lcd.write ("    BigFont   ");
  lcd.setCursor(0, 1);
  lcd.write ("   =========    ");
  delay(2000);
  lcd.clear();

  lcdNum.createChars();

  lcd.setCursor(1, 1);
  lcd.print("FM");
  lcd.setCursor(9, 0);
  lcd.print("MHz");
  lcd.setCursor(12, 1);
  lcd.print("8/15");
  lcd.setCursor(14,0);
  lcd.print("St");
}

void loop()
{
  static long val = 870;

  val++;

  if (val > 1080) val = 870;

  if (val > 999)
  {
    lcdNum.setCol(4);
    lcdNum.setValue (val);

    lcd.setCursor(7, 0);
    lcd.print(val % 10);
    lcd.setCursor(7, 1);
    lcd.print(" ");

  }
  else
  {
    lcdNum.setCol(5);
    lcdNum.setValue (val);

    lcd.setCursor(7, 0);
    lcd.print(val % 10);
    lcd.setCursor(7, 1);
    lcd.print(" ");
  }

  delay(500);
}

sketch.ino

diagram.json

/*
Fabiano A. Arndt - 2015
www.youtube.com/user/fabianoallex
www.facebook.com/dicasarduino
fabianoallex@gmail.com
*/
   
   
/*************************************************************************************************************
*******************************CLASSE LCD BIG NUMBERS*********************************************************
**************************************************************************************************************/
struct LCDNumber {
  byte top;
  byte bottom;
};
 
class LCDBigNumbers {
  private:
    LiquidCrystal * _lcd;
    int _row;
    int _col;
    long _value; /*0..100*/
     
    void _clear(){
      int cont = 1;
      long x = 9;
      while (_value > x){
        cont++;
        x = x * 10 + 9;
      }
      for (int i=0; i<cont; i++) {
        _lcd->setCursor(_col+i, _row);
        _lcd->print( " " );
        _lcd->setCursor(_col+i, _row+1);
        _lcd->print( " " );
      }
    }
  public:
    static byte c0[8];  
    static byte c1[8];  
    static byte c2[8];  
    static byte c3[8];
    static byte c4[8];
    static byte c5[8];  
    static byte c6[8];  
    static byte c7[8];  
    static LCDNumber _lcd_numbers[];
    
    void createChars() {
      _lcd->createChar(0, c0);
      _lcd->createChar(1, c1);
      _lcd->createChar(2, c2);
      _lcd->createChar(3, c3);
      _lcd->createChar(4, c4);
      _lcd->createChar(5, c5);
      _lcd->createChar(6, c6);
      _lcd->createChar(7, c7);
    }
     
    LCDBigNumbers(LiquidCrystal * lcd, int row, int col) {
      _lcd = lcd;      _row = row;      _col = col;
    }
     
    void setRow(int row){
      _clear();
      _row = row;
      setValue(_value);
    }
    void setCol(int col){
      _clear();
      _col = col;
      setValue(_value);
    }
     
    void setValue(long value){
      _clear();
      _value = value;
       
      int cont = 1;
      long x = 9;
      while (abs(_value) > x){
        cont++;
        x = x * 10 + 9;
      }
       
      for (int i=0; i<cont; i++) {
        int n = value / pow(10, cont-1-i);
        value = value - pow(10, cont-1-i) * n;
         
        _lcd->setCursor(_col+i, _row);
        _lcd->write( _lcd_numbers[n].top );
        _lcd->setCursor(_col+i, _row+1);
        _lcd->write( _lcd_numbers[n].bottom );
      }
       
    }
};

byte LCDBigNumbers::c0[8] = {B11111, B10001, B10001, B10001, B10001, B10001, B10001, B10001};
byte LCDBigNumbers::c1[8] = {B10001, B10001, B10001, B10001, B10001, B10001, B10001, B11111};
byte LCDBigNumbers::c2[8] = {B00001, B00001, B00001, B00001, B00001, B00001, B00001, B00001};
byte LCDBigNumbers::c3[8] = {B11111, B00001, B00001, B00001, B00001, B00001, B00001, B11111};
byte LCDBigNumbers::c4[8] = {B11111, B10000, B10000, B10000, B10000, B10000, B10000, B11111};
byte LCDBigNumbers::c5[8] = {B11111, B00001, B00001, B00001, B00001, B00001, B00001, B00001};    
byte LCDBigNumbers::c6[8] = {B11111, B10001, B10001, B10001, B10001, B10001, B10001, B11111};              
byte LCDBigNumbers::c7[8] = {B00001, B00001, B00001, B00001, B00001, B00001, B00001, B11111};


LCDNumber LCDBigNumbers::_lcd_numbers[] = { 
  {0, 1}, //0
  {2, 2}, //1
  {5, 4}, //2
  {3, 7}, //3
  {1, 2}, //4
  {4, 7}, //5
  {4, 1}, //6
  {5, 2}, //7
  {6, 1}, //8
  {6, 7} // 9
};
 

/*************************************************************************************************************
*******************************FIM CLASSE LCD BIG NUMBERS*****************************************************
**************************************************************************************************************/

Bigfonte.h

# Wokwi Library List
# See https://docs.wokwi.com/guides/libraries

# Automatically added based on includes:
LiquidCrystal
# ---
