const float GAMMA = 0.7 ;
const float RL10 = 50;

#define LED 27

void setup(){
  Serial.begin(115200);
    pinMode(LED, OUTPUT);

}

void loop(){
  int analogValue = analogRead(25);
  float voltage = analogValue * 5/4095.0;
  float resistance = 2000 * voltage / (1 - voltage / 5);
  float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));
  Serial.print("Lux:");
  Serial.println(lux);
    if (lux >= 50){
    Serial.print("Status:");
    Serial.println("LED MATI");
    digitalWrite(LED, LOW);
  }
  else{
    Serial.print("Status:");
    Serial.println("LED HIDUP");
    digitalWrite(LED, HIGH);
  }
  delay(1000);
}