#include <LiquidCrystal_I2C.h>
#include <Servo.h>

#define LedVm 13
#define LedAm 12
#define LedVd 11
#define buzzer 10

LiquidCrystal_I2C lcd(0x27, 16, 2);
Servo servo;

int const tempo = 1000;
int const tempo2 = 2000;
int const tempoI = 300;
const int servoPin = 9;

void setup() 
{
  tone(buzzer, 200);
  delay(tempoI);
  tone(buzzer, 250);
  delay(tempoI);
  tone(buzzer, 300);
  delay(tempoI);
  tone(buzzer, 250);
  delay(tempoI);
  tone(buzzer, 200);
  delay(tempoI);
  noTone(buzzer);

  servo.attach(servoPin, 500, 2400);
  delay(tempo);
  servo.write(0);

  lcd.init();
  lcd.backlight();
  lcd.setCursor(4,0);
  lcd.print("Amostra");
  lcd.setCursor(3,1);
  lcd.print("C O R E S");
  delay(tempo2);
  lcd.clear();
  delay(tempo);
  
  pinMode(LedVm, OUTPUT);
  pinMode(LedAm, OUTPUT);
  pinMode(LedVd, OUTPUT);
  pinMode(buzzer, OUTPUT);
}
  
void loop()
{
  servo.write(0);
  digitalWrite(LedVm, HIGH);
  tone(buzzer, 140);
  lcd.setCursor(4,0);
  lcd.print("VERMELHO");
  delay(tempo);
  digitalWrite(LedVm, LOW);
  noTone(buzzer);
  lcd.clear();
  delay(tempo);
  
  servo.write(90);
  digitalWrite(LedAm, HIGH);
  tone(buzzer, 160);
  lcd.setCursor(4,0);
  lcd.print("AMARELO");
  delay(tempo);
  digitalWrite(LedAm, LOW);
  noTone(buzzer);
  lcd.clear();
  delay(tempo);
  
  servo.write(180);
  digitalWrite(LedVd, HIGH);
  tone(buzzer, 180);
  lcd.setCursor(5,1);
  lcd.print("VERDE");
  delay(tempo);
  digitalWrite(LedVd, LOW);
  noTone(buzzer);
  lcd.clear();
  delay(tempo);
}