#include <Servo.h>

Servo myservo;

void setup() {
  // put your setup code here, to run once:
  pinMode(2,INPUT_PULLUP);
  pinMode(3,OUTPUT);
  pinMode(4,OUTPUT);
  pinMode(5,OUTPUT);
  pinMode(6,OUTPUT);
  pinMode(7,OUTPUT);

  myservo.attach(8);
}

void loop() {
  int d = 2000;

  int button = digitalRead(2);

  // carros passando, pedestre esperando
  digitalWrite(7,HIGH);
  digitalWrite(6,LOW);
  digitalWrite(5,LOW);
  digitalWrite(4,HIGH);
  digitalWrite(3,LOW);

  // cancela aberta
  myservo.write(0);

  if(button == LOW)
  {
    //sinal amarelo
    digitalWrite(7,LOW);
    digitalWrite(6,HIGH);
    digitalWrite(5,LOW);
    digitalWrite(4,HIGH);
    digitalWrite(3,LOW);

    delay(5000);

    //sinal vermelho

    // cancela fechada
    myservo.write(90);

    digitalWrite(7,LOW);
    digitalWrite(6,LOW);
    digitalWrite(5,HIGH);
    digitalWrite(4,HIGH);
    digitalWrite(3,LOW);

    delay(1000);

    //VERDE PEDESTRE
    digitalWrite(7,LOW);
    digitalWrite(6,LOW);
    digitalWrite(5,HIGH);
    digitalWrite(4,LOW);
    digitalWrite(3,HIGH);

    delay(5000);

  }
}