Arduino signal generator, creates 00, 01, 10, 11

NandGateSignalGenerator.ino

int pin1=2;
int pin2=3;
int del=2000;

void setup() {
  // put your setup code here, to run once:
  pinMode(pin1, OUTPUT);
  pinMode(pin2, OUTPUT);
  
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(pin1, LOW);
  digitalWrite(pin2, LOW);
  delay(del);
  
  digitalWrite(pin1, LOW);
  digitalWrite(pin2, HIGH);
  delay(del);

  
  digitalWrite(pin1, HIGH);
  digitalWrite(pin2, LOW);
  delay(del);

  
  digitalWrite(pin1, HIGH);
  digitalWrite(pin2, HIGH);
  delay(del);
}