Button Pressed

buttonpressedsketch_jan15e

// Turn on LED while the button is pressed 
//Camille Kauffman
//excercise 4-2 from Getting Started with Arduino

const int LED = 13; //the pin for the light
const int BUTTON = 7;//the input pin hwere the pushbutton is connected


int val = 0; //val will be used to store the state of the input pin


void setup() {
  
  pinMode(LED, OUTPUT); //tell Arduino LED is an output
  pinMode(BUTTON, INPUT); // and BUTTON is an input
  
}

void loop() {
  val = digitalRead(BUTTON); //read input value and store it
  
  //check whether the input is HIGH (button pressed)
  if (val == HIGH) {
    digitalWrite(LED, HIGH); //turn LED on
  } else {
    digitalWrite(LED, LOW);
  }
}