semaforo

const int led[] = {13,12,11,10,9};//pinos dos leds. Ordem.: Cg, Cy, Cr, Pr, Pg
const int tempo[] = {2000, 500, 2000};
const int button = 8;
void setup() {
  for(int i = 0; i < sizeof(led)/sizeof(int); i++){pinMode(led[i], OUTPUT);}
  pinMode(button, INPUT_PULLUP);
}
void loop() {
  if(digitalRead(button) == LOW){
    ped();
  }
  else{
    car();
  }
}
void car(){
  digitalWrite(led[3], HIGH);
  for(int i = 0; i < sizeof(tempo)/sizeof(int); i++){
    digitalWrite(led[i], HIGH);
    delay(tempo[i]);
    digitalWrite(led[i], LOW);
  }
}
void ped(){
  car();
  digitalWrite(led[3], LOW); delay(500);
  digitalWrite(led[4], HIGH);
  for(int i = 0; i < 11; i++){
    digitalWrite(led[4], !digitalRead(led[4]));
    delay(500);
  }
  digitalWrite(led[3], HIGH);
}