//Activity 2: LED + Button
// Constants
const int buttonPin = 7;    // the pin number for the pushbutton
const int ledPin = 13;      // the pin number for the LED

// Variables
int buttonState = 0;        // variable for reading the pushbutton status

void setup() {
  pinMode(ledPin, OUTPUT);      // initialize the LED pin as an output
  pinMode(buttonPin, INPUT_PULLUP);    // initialize the pushbutton pin as an input
}

void loop() {
  // read the state of the pushbutton value
  buttonState = digitalRead(buttonPin);
  // check if the pushbutton is pressed
  if (buttonState != HIGH) {
    // turn on the LED
    digitalWrite(ledPin, HIGH);
  } else {
    // turn off the LED
    digitalWrite(ledPin, LOW);
  }
}