//===================== Example1_7 ================================================
#define analogPin  0//connected to analog pin 0
float val= 0; //variable to store the value read
int ledsOn = 0;
void setup(){
   Serial.begin(9600);//setup serial
   pinMode(LED_BUILTIN, OUTPUT);
   }// End of setup function

void loop(){
  val=analogRead(analogPin);//read the input pin
  val = val*5/1024; // Analog value
  if (val > 4.65) {
    ledsOn++;
    Serial.println("LED"); // Shows us in console the LED was turned on
    digitalWrite(LED_BUILTIN, HIGH); // Turns LED on
  } else {
    digitalWrite(LED_BUILTIN, LOW); // Turns LED off
  }

  if (ledsOn > 0) {
    Serial.println("First LED on"); // Shows us in console the LED was turned on
  }
  if (ledsOn > 1) {
    Serial.println("Second LED on"); // Shows us in console the LED was turned on
  }
  if (ledsOn > 2) {
    Serial.println("Third LED on"); // Shows us in console the LED was turned on
  }
  if (ledsOn > 3) {
    Serial.println("Fourth LED on"); // Shows us in console the LED was turned on
  }
  if (ledsOn > 4) {
    Serial.println("All LEDs turned off"); // Shows us in console the LED was turned on
    ledsOn = 0;
  }
  delay(200);
 }//End of loop function
//============================================================================