#include <OneWire.h>
#include <SoftwareWire.h>
#include <DallasTemperature.h>
#include <LiquidCrystal_I2C.h>
#include <DHT22.h>
#include <Servo.h>
// setup dht22
#define DHTPIN 12
DHT22 dht22(DHTPIN);

// setup lcd
#define LCD_COLUMNS 18
#define LCD_LINES   2
LiquidCrystal_I2C lcd(0x27, LCD_COLUMNS, LCD_LINES);

// setup sensor DS
OneWire dsWire(13);
DallasTemperature sensorDS(&dsWire);

// setup pirmotion & buzzer 
int pirInput = 10;
int buzzpin = 4;

// setup ultrasonic & servo
int trig = 9;
int echo = 8;
Servo myservo;



float cekJarakUltrasonic(){
  digitalWrite(trig, HIGH);
  delayMicroseconds(10);
  digitalWrite(trig, LOW);
  int duration = pulseIn(echo, HIGH);
  return duration / 58;
}

void setup() {
  lcd.init();
  lcd.backlight();
  pinMode(trig, OUTPUT);
  Serial.begin(115200);
  myservo.attach(5);
  delay(2);
  sensorDS.begin();
  delay(20);
  // put your setup code here, to run once:

}
// fungsi untuk mengambil input dari DS18B20
float getTempDS(){
  sensorDS.requestTemperatures();
  return sensorDS.getTempCByIndex(0);
}

void loop() {
  // tampilkan hasil DS18B20 ke lcd
  lcd.setCursor(0, 0);
  lcd.print("temp : ");
  lcd.print(getTempDS());
  lcd.print((char)223);
  lcd.print("C");


  // tampilkan hasil dht22 ke lcd
  lcd.setCursor(0,1);
  lcd.print("hum : ");
  lcd.print(dht22.getHumidity());
  lcd.print("%");


  // jika pirmotion mendeteksi gerakan maka akan menyalakan buzzer
  bool val = digitalRead(pirInput);
  if (val){
    tone(buzzpin,262,250);
  }else{
    noTone(buzzpin);
  }


  // jika jarak benda dari sensor ultrasonic lebih kecil atau sama dengan 100 maka servo akan bergerak 90 derajat
  float ultrasonic = cekJarakUltrasonic();
  if (ultrasonic<=100){
    myservo.write(90);
  }else{
    myservo.write(0);
  }
  

}