#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,17,2);

int valorsensorgas;
int LED=7;

void setup(){
  pinMode((LED, OUTPUT));
  lcd.init();
  lcd.backlight();
  serial.begin(9600);
}

void loop(){
  valorsensorgas = analogRead(A1);
  delay(100);
  lcd.clear();
  lcd.print("Sensor_gas: ");
  lcd.print(valorsensorgas,1);
  serial.print(valorsensorgas);
  serial.println(;)
}