const int ldr = 15;
int adcLdr = 0;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");

  pinMode(ldr, INPUT);
}

void loop() {

  adcLdr = analogRead(ldr);
  
  Serial.print("ADC : ");
  Serial.println(adcLdr);
  Serial.print("Lux : ");
  Serial.println((0.00003*pow(adcLdr,2))-(0.2312*adcLdr)+444.14);
  // put your main code here, to run repeatedly:
  delay(100); // this speeds up the simulation
}