#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 20, 4); 

const uint8_t pulsador5 = 34;
const uint8_t pulsador7 = 35;
const uint8_t pulsador12 = 32;
const uint8_t pulsador15 = 33;
uint8_t di[]={pulsador5,pulsador7,pulsador12,pulsador15};
const uint8_t led1 = 5;
const uint8_t led2 = 17;
const uint8_t led3 = 16;
const uint8_t led4 = 4;
const uint8_t led5 = 2;
uint8_t led[]={led1,led2,led3,led4,led5};
int numeroDecimal1 = 9;
int numeroDecimal2 = 18;
int numeroDecimal3 = 19;
int numeroDecimal4 = 1;
void setup() {
  
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("Nro decimal:");
  lcd.setCursor(0, 1);
  lcd.print("Nro binario:");
  lcd.setCursor(0, 2);
  lcd.print("Letra:");

  pinMode(pulsador5, INPUT);
  pinMode(pulsador7, INPUT);
  pinMode(pulsador12, INPUT);
  pinMode(pulsador15, INPUT);

  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(led4, OUTPUT);
  pinMode(led5, OUTPUT);

  Serial.begin(115200);
}

void loop() {
  

  if(digitalRead(pulsador5)== 1){
    lcd.setCursor(14, 0);
    lcd.print(numeroDecimal1);

  
    lcd.setCursor(14, 1);
    lcd.print(numeroDecimal1, BIN);

    lcd.setCursor(14,2);
    lcd.print("I");
    for (int i = 0; i < 5; i++) {
    digitalWrite(led[i], bitRead(numeroDecimal1, i));
  }
  }
  
  if(digitalRead(pulsador7)== 1){
    lcd.setCursor(14, 0);
    lcd.print(numeroDecimal2);

  
    lcd.setCursor(14, 1);
    lcd.print(numeroDecimal2, BIN);

    lcd.setCursor(14,2);
    lcd.print("S");
    for (int i = 0; i < 5; i++) {
    digitalWrite(led[i], bitRead(numeroDecimal2, i));
  }
  }
  
  
  if(digitalRead(pulsador12)== 1){
    lcd.setCursor(14, 0);
    lcd.print(numeroDecimal3);

  
    lcd.setCursor(14, 1);
    lcd.print(numeroDecimal3, BIN);

    lcd.setCursor(14,2);
    lcd.print("R");
    for (int i = 0; i < 5; i++) {
    digitalWrite(led[i], bitRead(numeroDecimal3, i));
  }
  }
  
  if(digitalRead(pulsador12)== 0 && digitalRead(pulsador7)== 0 &&  digitalRead(pulsador5)== 0 && digitalRead(pulsador15)== 0){
    
    
    lcd.setCursor(14, 0);
    lcd.print("    ");

 
    lcd.setCursor(14, 1);
    lcd.print("     ");

    lcd.setCursor(14,2);
    lcd.print("      ");
    for (int i = 0; i < 5; i++) {
    digitalWrite(led[i], 0);
  }
  }
  
  
  if(digitalRead(pulsador15)== 1){
    lcd.setCursor(14, 0);
    lcd.print(numeroDecimal4);

  
    lcd.setCursor(14, 1);
    lcd.print(numeroDecimal4, BIN);

    lcd.setCursor(14,2);
    lcd.print("A");
    for (int i = 0; i < 5; i++) {
    digitalWrite(led[i], bitRead(numeroDecimal4, i));
  }
  }
  
}