// set pin numbers
int led = 7;  // number of LED pin
int button = 3; // number of push button pin

int buttonState = 0; // read button status

void setup() {
 pinMode(led, OUTPUT); 
 pinMode(button, INPUT);
}

void loop() {
  buttonState = digitalRead(button); // LOW = pressed, HIGH = not pressed
  if (buttonState == LOW) {
    //delay(50);
    digitalWrite(led, HIGH);
  } else {
    //delay(100);
    digitalWrite(led, LOW);
  }
}