#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>
int Trig_Pin = 4;
 int echo_Pin = 5;

#define DHT_PIN 7

DHT dht(DHT_PIN, DHT22);

LiquidCrystal_I2C lcd(0x27, 32, 4);

void setup() {
  Serial.begin(9600);
  dht.begin();
  pinMode(Trig_Pin, OUTPUT);
  pinMode(echo_Pin, INPUT);
  lcd.init();
  lcd.backlight();
}

void loop() {
  float Temp = dht.readTemperature();
  float Humi = dht.readHumidity();

  if(isnan(Temp) || isnan(Humi)){
    lcd.setCursor(0, 0);
    lcd.print("Sensor Rusak");
  } else {
    
    int pulse, inches, cm;
    digitalWrite(Trig_Pin,LOW);
    delayMicroseconds(2);
    digitalWrite(Trig_Pin, HIGH);
    delayMicroseconds(10);
    digitalWrite(Trig_Pin, LOW);
    pulse = pulseIn(echo_Pin, HIGH);
    cm = pulse * 0.03422 / 2;
  
    lcd.setCursor(0,0);
    lcd.print("Jarak : ");
    lcd.print(cm);
    lcd.println(" CM");
    
    lcd.setCursor(0,1);
    lcd.print("---------------------");

    lcd.setCursor(0, 2);
    lcd.print("Temp: ");
    lcd.print(Temp);
    lcd.println(" C");

    lcd.setCursor(0, 3);
    lcd.print("Humi: ");
    lcd.print(Humi);
    lcd.println(" %");
  
  }
  delay(2000);

}