#include <Servo.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>
LiquidCrystal_I2C lcd(0x27, 20, 4);
DHT dht(2, DHT22);

#define DHTPIN 10
#define DHTTYPE DHT22
DHT dht2(DHTPIN, DHTTYPE);

int SERVO_PIN = 11;
Servo servo;
int SERVO_PIN2 = 9;
Servo servo2;

int TRIG_PIN = 8;
int ECHO_PIN = 7;
float duration_us, distance_cm;
float suhu, kelembaban;
#define pinLDR A0
const float GAMMA = 0.7; //nilai ketetapan gama untuk mencari tingkat kecerahan(lux)
const float RL10 = 50;
int threshold = 500;
float temp;
#define buton 6
#define led 4
#define led2 3
#define buton2 5

void setup() {
  Serial.begin(9600);
  lcd.init();
  lcd.backlight();
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  pinMode(13, OUTPUT);
  dht.begin();
  dht2.begin();
  servo.attach(SERVO_PIN);
  servo.write(0);
  servo2.attach(SERVO_PIN2);
  servo.write(0);
  pinMode(buton, INPUT);
  pinMode(buton2, INPUT);
  pinMode(led, OUTPUT);
  pinMode(led2, OUTPUT);

}

void loop() {
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);
  duration_us = pulseIn(ECHO_PIN, HIGH);
  distance_cm = 0.017 * duration_us;
  suhu = dht.readTemperature();
  kelembaban = dht.readHumidity();
  int lembab = 60;
  int lightValue = analogRead(pinLDR);
  temp = dht2.readTemperature();

  Serial.print("distance: ");
  Serial.print(distance_cm);
  Serial.println(" cm");
  lcd.setCursor(0, 1);
  lcd.print("   Lembab ");
  lcd.print(kelembaban);
  lcd.print("% ");
   delay(500);

    //SERVO ULTRASONIK
    if (distance_cm > 290){
        servo.write(90);
        lcd.setCursor(0, 0);
        lcd.print("     Air: full ");
        delay(20);
    }
    else{
          servo.write(0);
           lcd.setCursor(0, 0);
      lcd.print("     Air : low ");
  delay(20);
    }
 
    //SERVO DHT
      if (kelembaban > lembab){
        servo2.write(90);
        delay(20);
    }
    else{
          servo2.write(0);
  delay(20);


}
 if (digitalRead(buton) == HIGH) {
    // Tombol ditekan, aktifkan LED berdasarkan nilai LDR
    if (lightValue > threshold && temp > 30.0) {
     digitalWrite(led, HIGH); 
      lcd.setCursor(0, 2);
      lcd.print("   CAHAYA:GELAP ");
      lcd.setCursor(0, 3);
      lcd.print("     SUHU:");
      lcd.print(temp);
    } else {
      // LDR mendeteksi cahaya cukup tinggi, matikan semua LED
      digitalWrite(led, LOW); 
      lcd.setCursor(0, 2);
      lcd.print("   CAHAYA:TERANG ");
      lcd.setCursor(0, 3);
      lcd.print("    SUHU:");
      lcd.print(temp);
    }
  } else if (digitalRead(buton2) == HIGH){
      if (lightValue > threshold && temp > 30.0) {
     digitalWrite(led2, HIGH);
      lcd.setCursor(0, 2);
      lcd.print("   CAHAYA:GELAP ");
      lcd.setCursor(0, 3);
      lcd.print("    SUHU:");
      lcd.print(temp);
    } else {
      // LDR mendeteksi cahaya cukup tinggi, matikan semua LED
      digitalWrite(led2, LOW);
      lcd.setCursor(0, 2);
      lcd.print("   CAHAYA:TERANG ");
      lcd.setCursor(0, 3);
      lcd.print("     SUHU:");
      lcd.print(temp);
    }

  }else {
    digitalWrite(led, LOW); 
    digitalWrite(led2, LOW); 
  }
}