/*
BUAT PROGRAM PENGUKURAN SUHU & KELEMBABAN TANAMAN
LAMPU HIJAU = SUHU RENDAH & LEMBAB TINGGI DARI SETTINGAN
LAMPU KUNING = SUHU & LEMBAB SESUAI SETTINGAN
LAMPU MERAH = SUHU TINGGI & LEMBAB RENDAH DARI SETTINGAN
*/
#include <LiquidCrystal_I2C.h>
#include "DHT.h"

#define DHTPIN 2            // Digital pin connected to the DHT sensor

int Led_Hijau = 8;         // Aktif Low
int Led_Kuning = 9;
int Led_Merah = 10;

LiquidCrystal_I2C lcd(0x27, 16, 2);
#define DHTTYPE DHT22      // DHT 22  (AM2302), AM2321

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  pinMode(Led_Merah, OUTPUT);
  pinMode(Led_Kuning, OUTPUT);
  pinMode(Led_Hijau, OUTPUT);
  digitalWrite(Led_Merah, HIGH);
  digitalWrite(Led_Kuning, HIGH);
  digitalWrite(Led_Hijau, HIGH);
  dht.begin(); 
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("SISTEM PEMBACAAN");
  lcd.setCursor(0, 1);
  lcd.print("- SENSOR DHT22 -");
  delay(1000);
  lcd.clear();
}

void loop() { 
  double kelembaban = dht.readHumidity();   //0-100 
  double suhu = dht.readTemperature();      //-40 s/d 80

  lcd.setCursor(0, 0);
  lcd.print("SUHU   : ");
  lcd.print(suhu);
  lcd.write(0xDF);
  lcd.print("C ");
  lcd.setCursor(0, 1);
  lcd.print("LEMBAB : ");
  lcd.print(kelembaban);
  lcd.print("% ");
  delay(2000);
}