#include <Servo.h>
#include "DHT.h"
#define DHTPIN 13    
#define DHTTYPE DHT22
#define merah 5
#define kuning 6
#define hijau 7
#define alarm 4
DHT dht(DHTPIN, DHTTYPE);
Servo myservo1;
Servo myservo2;

void setup() {
  Serial.begin(9600);
  Serial.println("Penyiram Hidroponik Otomatis");
  dht.begin();
  pinMode(merah, OUTPUT);
  pinMode(kuning, OUTPUT);
  pinMode(hijau, OUTPUT);
  pinMode(alarm, OUTPUT);
  myservo1.attach(9);
  myservo2.attach(3);
}

void loop() {
  // Wait a few seconds between measurements.
  delay(2000);

  // Reading temperature or humidity takes about 250 milliseconds!
  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
  float humidity = dht.readHumidity();
  // Read temperature as Celsius (the default)
  float temperature = dht.readTemperature();

  // Check if any reads failed and exit early (to try again).
  if (isnan(humidity) || isnan(temperature)) {
    Serial.println("Sensor Gagal Berfungsi");
    return;
  }
  Serial.print("Humidity: ");
  Serial.print(humidity);
  Serial.print("%");
  Serial.print(" Temperature: ");
  Serial.print(temperature);
  Serial.print("°C");
  Serial.println();

if(temperature >=30 && humidity >=80){
  Serial.print("Kondisi Tanaman Normal");
  Serial.println();
  digitalWrite(merah, LOW);
  digitalWrite(kuning, LOW);
  digitalWrite(hijau, HIGH);
  myservo1.write(0);
  myservo2.write(0);
  noTone(alarm);
}

if(temperature >=30 && temperature <=35){
  Serial.print("Kondisi Suhu Panas");
  Serial.println();
  digitalWrite(merah, LOW);
  digitalWrite(kuning, HIGH);
  digitalWrite(hijau, LOW);
  myservo1.write(0);
  myservo2.write(0);
  noTone(alarm);
}

if(humidity >=50 || humidity <=80){
  Serial.print("Kodisi Kelembapan Kering");
  Serial.println();
  digitalWrite(merah, LOW);
  digitalWrite(kuning, HIGH);
  digitalWrite(hijau, LOW);
  myservo1.write(0);
  myservo2.write(180);
  noTone(alarm);
}

if(temperature >=35 || humidity <=50){
  Serial.print("Kodisi Darurat");
  Serial.println();
  digitalWrite(merah, HIGH);
  digitalWrite(kuning, LOW);
  digitalWrite(hijau, LOW);
  myservo1.write(180);
  myservo2.write(180);
  tone(alarm, 1000);
}
}