const int pinSensor = A0;
int adcValue = 0;
double volt = 0;
const float  RL10 = 50;
const float GAMMA = 0.7;

void setup()
{
  // inisiasi Serial comm dengan baud rate 115200
  Serial.begin(115200);
  pinMode(pinSensor, INPUT);
}

void loop()
{
  // akuisisi nilai ADC sensor LDR
  adcValue = analogRead(pinSensor);
  float voltage = adcValue / 4095. * 5; //4095 = max ADC esp32
  float resistance = 2000 * voltage / (1 - voltage / 5);
  float lux = pow(RL10 * 1000 * pow (10, GAMMA) / resistance, (1 / GAMMA));
  
  Serial.print("nilai adc:");
  Serial.print(adcValue); 

  Serial.print(" Lux:");
  Serial.println(lux);
  // jeda akuisisi data
  delay(1000); 
}