#include <DallasTemperature.h>
#include <DHT.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_TSL2591.h>
#include <Wire.h>
#include <OneWire.h>

#define ONE_WIRE_BUS 4 // Pin data sensor DS18B20
#define DHT_PIN 2       // Pin data sensor DHT22
#define POT_PIN 14      // Pin ADC untuk potensiometer
#define ULTRASONIC_TRIGGER_PIN 12 // Pin trigger sensor ultrasonik
#define ULTRASONIC_ECHO_PIN 13    // Pin echo sensor ultrasonik

#define RELAY_PIN_1 46   // Pin relay 1
#define RELAY_PIN_2 45   // Pin relay 2
#define RELAY_PIN_3 42   // Pin relay 3
#define RELAY_PIN_4 41   // Pin relay 4
#define RELAY_PIN_5 33   // Pin relay 5
#define RELAY_PIN_6 21   // Pin relay 6

#define MOTOR_PIN 19     // Pin untuk menghidupkan motor DC

#define RELAY_ON LOW     // Untuk relay active LOW

#define TEMP_THRESHOLD 30.0  // Ambang batas suhu untuk relay 1
#define TEMP_MIN 5.5         // Ambang batas minimal suhu untuk relay 2 dan relay 3
#define TEMP_MAX 7.5         // Ambang batas maksimal suhu untuk relay 2 dan relay 3
#define POT_MIN 5            // Ambang batas minimal potensiometer untuk relay 4 dan relay 5
#define POT_MAX 9            // Ambang batas maksimal potensiometer untuk relay 4 dan relay 5
#define ULTRASONIC_DISTANCE_THRESHOLD 400  // Ambang batas jarak untuk relay 6 (dalam satuan mm)

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
DHT dht(DHT_PIN, DHT22);
Adafruit_TSL2591 tsl = Adafruit_TSL2591(2591);

void setup() {
  Serial.begin(9600);
  pinMode(RELAY_PIN_1, OUTPUT);
  pinMode(RELAY_PIN_2, OUTPUT);
  pinMode(RELAY_PIN_3, OUTPUT);
  pinMode(RELAY_PIN_4, OUTPUT);
  pinMode(RELAY_PIN_5, OUTPUT);
  pinMode(RELAY_PIN_6, OUTPUT);
  pinMode(MOTOR_PIN, OUTPUT);
  pinMode(ULTRASONIC_TRIGGER_PIN, OUTPUT);
  pinMode(ULTRASONIC_ECHO_PIN, INPUT);

  sensors.begin();
  dht.begin();
  tsl.begin();
}

void loop() {
  float temp_ds18b20 = getTemperatureDS18B20();
  float temp_dht22 = getTemperatureDHT22();
  float humidity = getHumidity();
  int pot_value = getPotentiometerValue();
  int ultrasonic_distance = getUltrasonicDistance();

  // Menghidupkan relay 1 jika suhu di atas ambang batas
  if (temp_ds18b20 > TEMP_THRESHOLD) {
    digitalWrite(RELAY_PIN_1, RELAY_ON);
  } else {
    digitalWrite(RELAY_PIN_1, !RELAY_ON);
  }

  // Menghidupkan relay 2 dan relay 3 jika suhu berada dalam rentang yang ditentukan
  if (temp_dht22 >= TEMP_MIN && temp_dht22 <= TEMP_MAX) {
    digitalWrite(RELAY_PIN_2, RELAY_ON);
    digitalWrite(RELAY_PIN_3, RELAY_ON);
  } else {
    digitalWrite(RELAY_PIN_2, !RELAY_ON);
    digitalWrite(RELAY_PIN_3, !RELAY_ON);
  }

  // Menghidupkan relay 4 dan relay 5 jika potensiometer berada dalam rentang yang ditentukan
  if (pot_value >= POT_MIN && pot_value <= POT_MAX) {
    digitalWrite(RELAY_PIN_4, RELAY_ON);
    digitalWrite(RELAY_PIN_5, RELAY_ON);
  } else {
    digitalWrite(RELAY_PIN_4, !RELAY_ON);
    digitalWrite(RELAY_PIN_5, !RELAY_ON);
  }

  // Menghidupkan relay 6 jika jarak ultrasonik kurang dari ambang batas
  if (ultrasonic_distance < ULTRASONIC_DISTANCE_THRESHOLD) {
    digitalWrite(RELAY_PIN_6, RELAY_ON);
  } else {
    digitalWrite(RELAY_PIN_6, !RELAY_ON);
  }

  // Menghidupkan motor DC jika salah satu dari relay 2, 3, 4, atau 5 aktif
  if (digitalRead(RELAY_PIN_2) == RELAY_ON || digitalRead(RELAY_PIN_3) == RELAY_ON ||
      digitalRead(RELAY_PIN_4) == RELAY_ON || digitalRead(RELAY_PIN_5) == RELAY_ON) {
    digitalWrite(MOTOR_PIN, HIGH);
    delay(10000); // Menjalankan motor DC selama 10 detik
    digitalWrite(MOTOR_PIN, LOW);
  }

  delay(1000); // Delay 1 detik antara pembacaan sensor
}

float getTemperatureDS18B20() {
  sensors.requestTemperatures();
  return sensors.getTempCByIndex(0);
}

float getTemperatureDHT22() {
  return dht.readTemperature();
}

float getHumidity() {
  return dht.readHumidity();
}

int getPotentiometerValue() {
  return analogRead(POT_PIN);
}

int getUltrasonicDistance() {
  digitalWrite(ULTRASONIC_TRIGGER_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(ULTRASONIC_TRIGGER_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(ULTRASONIC_TRIGGER_PIN, LOW);
  return pulseIn(ULTRASONIC_ECHO_PIN, HIGH) * 0.034 / 2;
}