#define REDCARS 13
#define YELLOWCARS 12
#define GREENCARS 11
#define GREENPEDESTRIANS 10
#define REDPEDESTRIANS 9
#define BUTTON 6
#define SIGNAL 3
void setup()
{
  pinMode(REDCARS, OUTPUT);
  pinMode(YELLOWCARS, OUTPUT);
  pinMode(GREENCARS, OUTPUT);
  pinMode(REDPEDESTRIANS, OUTPUT);
  pinMode(GREENPEDESTRIANS, OUTPUT);
  pinMode(BUTTON, INPUT_PULLUP);
  pinMode(SIGNAL, OUTPUT);
  digitalWrite(REDCARS, LOW);
  digitalWrite(YELLOWCARS,LOW);
  digitalWrite(GREENCARS, HIGH);
  digitalWrite(REDPEDESTRIANS, HIGH);
  digitalWrite(GREENPEDESTRIANS, LOW);
}
void loop()
{
  if(digitalRead(BUTTON)==LOW)
  {
    digitalWrite(SIGNAL, HIGH);
    delay(5000);
    digitalWrite(YELLOWCARS, HIGH);
    digitalWrite(GREENCARS, LOW);
    delay(2000);
    digitalWrite(YELLOWCARS, LOW);
    digitalWrite(REDCARS, HIGH);
    digitalWrite(SIGNAL, LOW);
    digitalWrite(REDPEDESTRIANS, LOW);
    digitalWrite(GREENPEDESTRIANS, HIGH);
  }

  {

   } 
}