Arduino IDE Code

Arduino IDE Code 

int led = 2;

int sensorValue = 0;

void setup()
{
  pinMode(led, OUTPUT);

  Serial.begin(9600);
}

void loop()
{
  sensorValue = analogRead(A0);

  Serial.print("A0 Value = ");
  Serial.println(sensorValue);

  if(sensorValue > 500)
  {
    digitalWrite(led, HIGH);
  }
  else
  {
    digitalWrite(led, LOW);
  }

  delay(100);
}