#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16, 2);


void setup() {
  // put your setup code here, to run once:
  LCD.begin(16, 2);
  pinMode(8, INPUT);
  pinMode(A0, INPUT);
  pinMode(7, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
  while(digitalRead(8) == HIGH);

  int ido = map(analogRead(A0), 0, 1023, 1, 600);

  while(ido > 0) {
    LCD.setCursor(0,0);
    LCD.print("   ");
    LCD.setCursor(0,0);
    LCD.print(ido);


    delay(1000);

    ido--;
    if(ido == 0) {
      digitalWrite(7, HIGH);
      LCD.clear();
      LCD.print("LEJART-AZ-IDO");
      delay(2000);
      digitalWrite(7, LOW);
    }

    if(digitalRead(8) == LOW) {
      break;
    }
  }
    LCD.clear();
}