/*nabila dan rossa dan risna*/

int LDR = A1;
int sensorValue = 2;

void setup()
{
  Serial.print(9600);
  pinMode(9, OUTPUT);
}

void loop()
{
  sensorValue = analogRead(LDR);
  Serial.println(sensorValue);
  float voltage = sensorValue*(5.2/1023.2);
  Serial.println(voltage);

  if(voltage <= 2)
  {
    digitalWrite(9, HIGH);
  }
  else
  {
    digitalWrite(9, LOW);
  }
  delay(1000);
}