#include "DHTesp.h"
#include "Servo.h"
#define PIN_WATERPUMP 4
#define PIN_LDR 35
String pump;
int ldr = 0; const float GAMMA = 0.7; const float RL10 = 50; float voltage, resistance, lux; int adcValue = 0;
int temp = 0;
int hum = 0;
const int DHT_PIN = 15;
const int BUZZER = 18;
const int servoPin = 2;

DHTesp dhtSensor;
Servo servo;

void setup() {
  Serial.begin(115200);
  pinMode(BUZZER, OUTPUT);//buzzer
  pinMode(5,OUTPUT);//led merah
  pinMode(4,OUTPUT);//pump
  pinMode(35, INPUT);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  servo.attach(servoPin);
}

void loop() {
  adcValue = analogRead(PIN_LDR); // Baca Tegangan Analog Sensor LDR
  voltage = adcValue * 5/4095.0; // ESP bit=12 -> 4095, 5=Tegangan Referensi
  resistance = 2000 * voltage / (1 - voltage / 5); // Rumus Resistansi Cahaya
  ldr = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA)); // Rumus Intensitas Cahaya
  temp = dhtSensor.getTemperature(); // ekstrak data temperature
  hum = dhtSensor.getHumidity(); // ekstrak data humidity

  Serial.println("=========================================");
  Serial.println("Suhu Udara: "+String(temp)+"°C");
  Serial.println("Kelembaban Udara: "+String(hum)+"%");
  Serial.println("Intensitas Cahaya: "+String(ldr)+"lux");
  delay(1000);

if (temp < 20){
    if (hum > 60) {
    Serial.println("AMAN");
    digitalWrite(5, LOW);
    digitalWrite(4, LOW);
    pump = "OFF";
    noTone(BUZZER);
    // servo.write(0);
    }
  }

  else if (temp > 32){
    if (hum < 60) {
    Serial.println("BAHAYA API!!!");
    digitalWrite(5, HIGH);
    Serial.println("MENYEMPROTKAN FOAM.....");
    digitalWrite(19, HIGH);
    digitalWrite(4, HIGH);
    pump = "ON";
    tone(BUZZER, 165);
    // servo.write(90);
    }
  }

if (ldr < 200) {
    Serial.println("AMAN");
    digitalWrite(5, LOW);
    digitalWrite(4, LOW);
    pump = "OFF";
    noTone(BUZZER);
    // servo.write(0);
  }

  else if (ldr > 600) {
    Serial.println("BAHAYA API!!!");
    digitalWrite(5, HIGH);
    Serial.println("MENYEMPROTKAN FOAM.....");
    digitalWrite(19, HIGH);
    digitalWrite(4, HIGH);
    pump = "ON";
    tone(BUZZER, 165);
    // servo.write(90);
  }

// if (pump = "OFF") {
//   servo.write(0);
// } else {
//   servo.write(90);
// }

if (ldr > 600) {
  servo.write(90);
} else {
  servo.write(0);
}
}