Arduino UNO Pushbutton Circuit

This circuit was a part of my Computer Science Discoveries Class curriculum. The components include:

• Arduino UNO
• A breadboard
• wires
• 200 ohm resistors
• A pushbutton
• An LED

The Arduino code for this circuit is shown below.

int buttonState = 0;

void setup()
{
  pinMode(2, INPUT);
  pinMode(LED_BUILTIN, OUTPUT);
}

void loop()
{
  // read the state of the push button
  buttonState = digitalRead(2);
  // checks if pushputton is pressed
  if (buttonState == HIGH) {
    digitalWrite(LED_BUILTIN, HIGH);
  } else {
    digitalWrite(LED_BUILTIN, LOW);
  }
  delay(10); // Delay a little bit to improve simulation performance
}