#define LDR_PIN 2
#define LED_PIN 12
const float GAMMA = 0.7;
const float RL10 = 50;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(LDR_PIN, INPUT);
  pinMode(LED_PIN, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  // These constants should match the photoresistor's "gamma" and "rl10" attributes


// Convert the analog value into lux value:
  int analogValue = analogRead(A0);
  float voltage = analogValue / 1024. * 5;
  float resistance = 2000 * voltage / (1 - voltage / 5);
  float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));
  if (lux<150){
    digitalWrite(LED_PIN,HIGH);
  }else{
    digitalWrite(LED_PIN,LOW);
  }
  // if(digitalRead(LDR_PIN) == LOW){
  //   digitalWrite(LED_PIN,LOW);
  //   Serial.println("LED is off");
  // }else {
  //   digitalWrite(LED_PIN, HIGH);
  //   Serial.println("LED is glowing");
  // }
  delay(100); // this speeds up the simulation
}