#include <LiquidCrystal_I2C.h>
#include <Servo.h>
#define LDR_PIN 2

//DHT
#include <dht.h>
#define dataPin 7
dht DHT;


//LDR Characteristics
const float GAMMA = 0.7;
const float RL10 = 50;

//servo
Servo myservo;
Servo myservo2;

//NTC
const float BETA = 3950;

//lcd 20x4 i2c
LiquidCrystal_I2C lcd(0x27, 20, 4);

//PIR and LCD
int ledPin = 3;
int ledPin2 = 2;
int inputPin = 4;
int pirState = LOW;
int val = 0;

//bargrah
const int ledCount = 10;
int ledPins[] = {
  //31, 33, 35, 37, 39, 41, 43, 45, 47, 49
  49, 47, 45, 43, 41, 39, 37, 35, 33, 31
};



void setup() {

  //LCD
  lcd.begin(16, 2);
  lcd.init();
  lcd.backlight();
  pinMode(LDR_PIN, INPUT);

  //servo
  myservo.attach(6);
  myservo2.attach(8);

  //buzzer
  pinMode(5, OUTPUT);
  Serial.begin(9600);

  //LED and PIR set up
  lcd.init();
  pinMode(ledPin, OUTPUT);
  pinMode(ledPin2, OUTPUT);
  pinMode(inputPin, INPUT);

  //bargrah
  for (int thisLed = 0; thisLed < ledCount; thisLed++) {
    pinMode(ledPins[thisLed], OUTPUT);
  }


}

void loop() {

  lcd.clear();

  // ค่าตัวแปรของ Temperature และ LUX
  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;

  lcd.setCursor(0, 1);
  lcd.print("Temperature: ");
  lcd.print(celsius);
  lcd.print(" C");

  // แสดงผลค่า LUX
  lcd.setCursor(0, 2);
  lcd.print("Lux: ");
  lcd.print(lux);
  delay(100);

  int pos = 0 ;

   if (lux >= 185) {
    if (myservo.read() != 180) {
      for (pos = 0; pos <= 180; pos += 30) {
        tone(5, 800);
        myservo.write(pos);
        delay(150);
        noTone(5);
        delay(150);
        

      }
      noTone(5);
      // myservo.write(180);
      // tone(5, 2000);
      // delay(500);
      // noTone(5);

    }
  } else {
    if (myservo.read() != 0) {
      for (pos = 180; pos >= 0; pos -= 30) {
        tone(5, 500);
        myservo.write(pos);
        delay(150);
        noTone(5);
        delay(150);

      }
      noTone(5);
      // myservo.write(0);
      // tone(5, 1000);
      // delay(500);
      // noTone(5);
    }
  }



  //PIR Sensor
  val = digitalRead(inputPin);
  if (val == HIGH ) {
    Serial.println("Motion detected!");
    digitalWrite(ledPin, HIGH);
    digitalWrite(ledPin2, HIGH);
    pirState = HIGH;
  } else {
    Serial.println("Motion ended!");
    digitalWrite(ledPin, LOW);
    digitalWrite(ledPin2, LOW);
    pirState = LOW;

  }
  //DHT
  int readData = DHT.read22(dataPin);
  float t = DHT.temperature;
  float h = DHT.humidity;

  // Serial.print("Temperature = ");
  // Serial.print(t);
  // Serial.print(" *C ");
  Serial.print("Humidity = ");
  Serial.print(h);
  Serial.println(" % ");

  if (h < 50) {
    if (myservo2.read() != 180) {
      myservo2.write(180);
      delay(500);
    }
  } else {
    if (myservo2.read() != 0) {
      myservo2.write(0);
      delay(500);
    }
  }

  //bargrah

  // int sensorReading = analogRead(h);
  // int ledLevel = map(sensorReading, 0, 100, 0, ledCount);

  // for (int thisLed = 0; thisLed < ledCount; thisLed++) {
  //   if (thisLed < ledLevel) {
  //     digitalWrite(ledPins[thisLed], HIGH);
  //   }
  //   else {
  //     digitalWrite(ledPins[thisLed], LOW);
  //   }
  // }

  digitalWrite(ledPins[0], LOW);
  digitalWrite(ledPins[1], LOW);
  digitalWrite(ledPins[2], LOW);
  digitalWrite(ledPins[3], LOW);
  digitalWrite(ledPins[4], LOW);
  digitalWrite(ledPins[5], LOW);
  digitalWrite(ledPins[6], LOW);
  digitalWrite(ledPins[7], LOW);
  digitalWrite(ledPins[8], LOW);
  digitalWrite(ledPins[9], LOW);

  int sensorReading = analogRead(h);
  // int ledLevel = map(sensorReading, 0, 100, 0, ledCount);



  if (h >= 10 ) {
    digitalWrite(ledPins[0], HIGH);
  }
  if (h >= 20 ) {
    digitalWrite(ledPins[1], HIGH);
  }
  if (h >= 30 ) {
    digitalWrite(ledPins[2], HIGH);
  }
  if (h >= 40 ) {
    digitalWrite(ledPins[3], HIGH);
  }
  if (h >= 50 ) {
    digitalWrite(ledPins[4], HIGH);
  }
  if (h >= 60 ) {
    digitalWrite(ledPins[5], HIGH);
  }
  if (h >= 70 ) {
    digitalWrite(ledPins[6], HIGH);
  }
  if (h >= 80 ) {
    digitalWrite(ledPins[7], HIGH);
  }
  if (h >= 90 ) {
    digitalWrite(ledPins[8], HIGH);
  }
  if (h == 100 ) {
    digitalWrite(ledPins[9], HIGH);
  }

  delay(1000);




}