// semaforo de carros
#define LG 27
#define LY 14
#define LR 12
// pedestre
#define GP 2
#define RP 4
#define buzzer 19
#define botao 5

#define botao2 18
int contador = 0;
void setup() {
  Serial.begin(115200);
  pinMode(botao, INPUT_PULLUP);
  pinMode(botao2, INPUT_PULLUP);
  pinMode(buzzer, OUTPUT);
  pinMode(LG, OUTPUT);
  pinMode(LY, OUTPUT);
  pinMode(LR, OUTPUT);
  pinMode(GP, OUTPUT);
  pinMode(RP, OUTPUT);
  }
void loop() {
  digitalWrite(buzzer, LOW);
  //semaforo normal
  /*digitalWrite(LG, HIGH);
  digitalWrite(RP, HIGH);
  digitalWrite(LY, LOW);
  digitalWrite(LR, LOW);
  delay(3000);

  digitalWrite(LY, HIGH);
  digitalWrite(RP, HIGH);
  digitalWrite(LG, LOW);
  digitalWrite(GP, LOW);
  delay(2000);
 
  digitalWrite(LR, HIGH);
  digitalWrite(RP, HIGH);
  digitalWrite(LG, LOW);
  digitalWrite(LY, LOW);
  delay(5000);*/

  contador_car();
  //botao pedestre
  if(!digitalRead(botao)&&(contador = 7)){
  contador = 0;
  Serial.println("ativado");
  Serial.print("Quantidade de carros: ");
  Serial.println(contador);

  digitalWrite(LY, HIGH);
  digitalWrite(RP, HIGH);
  digitalWrite(GP, LOW);
  digitalWrite(LR, LOW);
  delay(2000);
 
  digitalWrite(GP, HIGH);
  digitalWrite(LR, HIGH);
  digitalWrite(RP, LOW);
  digitalWrite(LY, LOW);
  delay(7000);

  digitalWrite(RP, HIGH);
  digitalWrite(LG, HIGH);
  digitalWrite(GP, LOW);
  digitalWrite(LR, LOW);
  delay(3000);
  }
}
  void contador_car(){
    if(!digitalRead(botao2)){
    contador++;
    Serial.println(contador);
    delay(400);
    if(contador == 7){
      digitalWrite(buzzer, HIGH);
      delay(2000);
      digitalWrite(buzzer, LOW);
      delay(2000);
     }
    }
  }