#include <DHT.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#define DHTPIN 3
#define DHTTYPE DHT22
#define  TRIG_PIN  4
#define  ECHO_PIN  5
LiquidCrystal_I2C lcd(0x27, 16, 2); 
DHT dht(DHTPIN, DHTTYPE);

int adc = A0;
long timer;
int jarak;
const int btn1 = 8;
const int btn2 = 9;
const int btn3 = 10;
const int btn4 = 11;
int buttonstatus1 = 0;
int buttonstatus2 = 0;
int buttonstatus3 = 0;
int buttonstatus4 = 0;

void setup() {
  lcd.begin(16,2);
  lcd.backlight();
  lcd.init();
  dht.begin();
  pinMode(btn1, INPUT);
  pinMode(btn2, INPUT);
  pinMode(btn3, INPUT);
  pinMode(btn4, INPUT);
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN , INPUT);
  Serial.begin(9600);
  
  
}

void loop() {
float kelembapan = dht.readHumidity();
float suhu = dht.readTemperature();
int adc = analogRead(A0);
buttonstatus1 = digitalRead(btn1);
buttonstatus2 = digitalRead(btn2);
buttonstatus3 = digitalRead(btn3);
buttonstatus4 = digitalRead(btn4);

 if (buttonstatus2 == HIGH){
  lcd.clear(); 
   Serial.print("Data Kelembapan : " + String(kelembapan));
  Serial.println("%"); 
  lcd.setCursor(1, 0);
  lcd.print("Nilai kelembapan");
  lcd.setCursor(2, 1);
  lcd.print(kelembapan);
  lcd.println("%"); 
    }
  
  else if (buttonstatus1 == HIGH){
  lcd.clear();
 Serial.print("Data suhu : " + String(suhu));
 Serial.println("°C"); 
  lcd.setCursor(1, 0);
  lcd.print("Nilai suhu");
  lcd.setCursor(2, 1);
  lcd.print(suhu);
  lcd.println("°C"); 

  }

  else if(buttonstatus4 == HIGH){
  lcd.clear();
 Serial.println("nilai adc :" + String(adc));
  lcd.setCursor(1, 0);
  lcd.print("Nilai ADC");
  lcd.setCursor(2, 1);
  lcd.println(adc);

 }

  else if(buttonstatus3 == HIGH){
   digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);
   timer=pulseIn(ECHO_PIN, HIGH);
      jarak=timer/58;
      delay(100);
  lcd.clear();
  Serial.print("nilai jarak :" + String(jarak));
  Serial.println("cm"); 
  lcd.setCursor(1, 0);
  lcd.print("Nilai Jarak");
  lcd.setCursor(2, 1);
  lcd.print(jarak);
  lcd.println("cm"); 
  delay(1000);
  }
}