const float GAMMA = 0.7;
const float RL10 = 50;
#include <LiquidCrystal.h>
#include <Servo.h>
int i = 0;
Servo myservo;
LiquidCrystal lcd(12, 11, 10, 9, 8, 7);
const float BETA = 3950;
void setup() {
  Serial.begin(9600);
  pinMode(5, OUTPUT);
  myservo.attach(6);
  lcd.begin(16, 2);
}

void loop() {
  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));


  float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;



  if (celsius <= 25 ) {
    digitalWrite(5, LOW);

    delay(20);
  }
  if (celsius > 25 ) {
    digitalWrite(5, HIGH);

    delay(20);
  }
    lcd.setCursor(0, 0);
  lcd.print("Temperate: ");
  lcd.print(celsius);

  if (lux >= 50) {
    if (myservo.read() != 0) {
      myservo.write(0);

      delay(500);

    }
  } else {
    if (myservo.read() != 180) {
      myservo.write(180);


      delay(500);

    }
  }

  lcd.setCursor(0, 1);
  lcd.print("lux:");
  lcd.print(lux);
  delay(100);
}