//Jim and Gab Activity 2: LED with Switch

/*In the previous  activity, we created a circuit that uses LED light
and the goal was to turn it on, and off, in an alternating way so 
it blinks. Now, we integrate LED with a switch. The system will work in
a way that the LED will turn on i and only if the switch is pressed.*/

const int ledPin = 13;
const int switchPin = 2;

/*To do this, fist we assigned pins 13 as the pin for  LED, which is also
our output, and 2 for the  switch. The  switch will serve as the input
in the system. This will work in a way that there should be an output 
(LED turned on) whenever there is an input (switch pressed)*/

int switchState = 0;

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(switchPin, INPUT_PULLUP);
}

void loop() {
//The state  of the switch is being monitored until such time that it is activated.
//When that happens, the  LED will light on.
  switchState = digitalRead(switchPin);

  /*To turn the LED on when the switch is pressed and off if not,, we simply
  employ if-else statement. The condition (if) was that the LED will only
  light on when the switch is pressed, otherwise, it will turn off*/
  if (switchState == LOW) {
    // To turn the LED on when the condition is satisfied, we set the command below.
    digitalWrite(ledPin, HIGH);
  }else{
    digitalWrite(ledPin, LOW);
  }
    delay(500);
  }

  /* This is still far from greatness, but great things start from small  beginnings (Milo)
  We might be still  far, but we are already far from arrogance. This is still
  a good  thing for  us. A nice thing.  A nice start.*/

  // Jim & Gab