#include <LiquidCrystal_I2C.h>

#define led 5
#define pot 36

#define address 0x27
#define col 16
#define lin 2

LiquidCrystal_I2C lcd(address, col, lin);

int ledState = 0;
int potState = 0;
byte lampada[8] = {
  0b01110,
  0b10001,
  0b10001,
  0b01010,
  0b01110,
  0b01010,
  0b01110,
  0b00000
};

void setup() {
  pinMode(led, OUTPUT);
  lcd.init();
  lcd.backlight();
  lcd.createChar(0, lampada);
}

void loop() {
  potState = analogRead(pot);
  ledState = map(potState, 4095, 0, 255, 0);
  analogWrite(led, ledState);
  potState = map(potState, 4095, 0, 100, 0);
  lcd.clear();
  lcd.print("Luminosidade:");
  lcd.setCursor(0, 1);
  lcd.print(potState);
  lcd.print("% ");
  lcd.write(0);
  delay(500);
}