#include <LiquidCrystal_I2C.h>
#include <DHT.h>

#define DHTPIN 8
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

LiquidCrystal_I2C lcd(0x27, 16, 2);

#define echoPin 6
#define trigPin 7

void setup() {
  Serial.begin(9600);
  Serial.println("Mengukur Jarak dan Suhu");
  
  lcd.init();
  lcd.backlight();
  
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  
  dht.begin();
}

void loop() {
  // Jarak
  long duration, hitung, jarak;
  
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  
  duration = pulseIn(echoPin, HIGH);
  hitung = (duration / 2) / 28.5;
  jarak = 18.5 - hitung;
  
  // Suhu
  float t = dht.readTemperature();
  delay(1000);
  
  // Menampilkan jarak dan suhu pada LCD
  lcd.setCursor(0, 0);
  lcd.print("Suhu=");
  lcd.print(t);
  lcd.print("C");
  
  lcd.setCursor(0, 1);
  lcd.print("Jarak=");
  lcd.print(jarak);
  lcd.print("Cm");
  
  // Menampilkan serial monitor
  Serial.print("Suhu=");
  Serial.print(t);
  Serial.println("C");
  
  Serial.print("Jarak=");
  Serial.print(jarak);
  Serial.println("Cm");
}