// SUHU
#include "DHT.h"
#define DHTPIN 23          
#define DHTTYPE DHT22  
DHT dht(DHTPIN, DHTTYPE);
// JARAK
const int TRIG_PIN = 13;
const int ECHO_PIN = 12;
#define SOUND_SPEED 0.034
#define CM_TO_INCH 0.3937601
long duration;
float distanceCm, distanceInch;
// KEKERUHAN
const int pinkekeruhan = 34; 

// PH
#include <ESP32Servo.h>
const int pinph = 35; 
Servo servo;
const int servoPin = 18;


#define LED 2
#define LED2 4
const int buzzer = 33;

void setup(){
  Serial.begin(115200);
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, OUTPUT);
  pinMode(LED, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(buzzer, OUTPUT);
  //Serial.println(F("DHTxx test"));
  pinMode(pinkekeruhan, INPUT);
  pinMode(pinph, INPUT);
  servo.attach(servoPin);

  dht.begin();

}

void loop(){
  digitalWrite(buzzer, LOW);
  digitalWrite(LED2, LOW);
// kekeruhan Air
 
  int potvalue = analogRead(pinkekeruhan);
  float kekeruhan = map(potvalue, 0, 4095, 1, 100);
  Serial.print("Kekeruhan Air: ");
  Serial.print(kekeruhan);
  Serial.print(" | ");

// Suhu Air
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  float f = dht.readTemperature(true);
  if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return; }

  float hif = dht.computeHeatIndex(f, h);
  float hic = dht.computeHeatIndex(t, h, false);
    Serial.print(F("Suhu Air: "));
    Serial.print(t);
    Serial.print(F("°C "));
    Serial.print(" | ");

//Ketinggian Air
  digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);

  duration = pulseIn(ECHO_PIN, HIGH);
  distanceCm = duration * SOUND_SPEED/2;
  distanceInch = distanceCm * CM_TO_INCH;

    Serial.print("Tinggi Air: ");
    Serial.print(distanceCm);
    Serial.print("cm ");
    Serial.print(" | ");
 

  // Serial.print("Distance (inch) : ");
  // Serial.println(distanceInch);

//PH AIR
  int potValue = analogRead(pinph);
  float ph = map(potValue, 0, 4095, 1, 15);
  Serial.print("PH: ");
  Serial.println(ph);

 if ((ph < 4 || t > 8) && distanceCm > 250) {digitalWrite(buzzer, HIGH); //jika jarak 30 led1, hidup, karna air kolam sedikit 
  }else{ digitalWrite(buzzer, LOW);
  }
if ( (t < 20 || t > 33) && kekeruhan > 50) {digitalWrite(LED2, HIGH); //jika jarak 30 led1, hidup, karna air kolam sedikit 
  }else{ digitalWrite(LED2, LOW);
  }

  delay(1000);
}