void setup()
{
  pinMode(A0,INPUT);
  Serial.begin(9600);
  pinMode(LED_BUILTIN, OUTPUT);
}

void loop()
{
  digitalWrite(LED_BUILTIN, HIGH);
  delay(1000); // Wait for 1000 millisecond(s)
  digitalWrite(LED_BUILTIN, LOW);
  delay(1000);
  int sensorValue = analogRead(A0);
  Serial.println(sensorValue);
  delay(10);
}