Reads a digital input from a button on pin 2 and turns on two LEDs in series when the button is pressed

Digital_Read_Serial.INO

/*
  DigitalReadSerial

  Reads a digital input on pin 2, prints the result to the Serial Monitor

  http://www.arduino.cc/en/Tutorial/DigitalReadSerial
*/

// digital pin 2 has a pushbutton attached to it. Give it a name:
  int pushButton = 2;
  int ledPin = 5;

// the setup routine runs once when you press reset:
void setup() {
  // initialize serial communication at 9600 bits per second:
  Serial.begin(9600);
  pinMode(pushButton, INPUT);
  pinMode(ledPin, OUTPUT);
}

// the loop routine runs over and over again forever:
void loop() {
  if (digitalRead(pushButton) == HIGH) {
     digitalWrite(ledPin, HIGH);
  }
  else {
     digitalWrite(ledPin, LOW);
  }
}