void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(12,OUTPUT);
  pinMode(32,OUTPUT);
  pinMode(5,OUTPUT);
  pinMode(15,OUTPUT);
  pinMode(2,OUTPUT);
  pinMode(18,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(12,HIGH);
  digitalWrite(18,HIGH);
  digitalWrite(32,LOW);
  digitalWrite(5,LOW);
  digitalWrite(15,LOW);
  digitalWrite(2,LOW);
  delay(4000); // this speeds up the simulation
  digitalWrite(32,HIGH);
  digitalWrite(2,HIGH);
  digitalWrite(12,LOW);
  digitalWrite(5,LOW);
  digitalWrite(18,LOW);
  digitalWrite(15,LOW);
  delay(4000);
  digitalWrite(5,HIGH);
  digitalWrite(15,HIGH);
  digitalWrite(12,LOW);
  digitalWrite(32,LOW);
  digitalWrite(18,LOW);
  digitalWrite(2,LOW);
  delay(4000);

}