#include <ESP32Servo.h>
#include <DHT.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

//sensor suhu
#define DHTPIN 5
#define DHTTYPE DHT22
//sensor jarak
#define TRIG_PIN  2
#define ECHO_PIN  4
//sensor kapasitas
#define TRIGGER_PIN2  14      //pin trigger dihubungkan ke pin 14 esp32
#define ECHO_PIN2     12      //pin echo dihubungkan ke pin 12 esp32
#define MAX_DISTANCE 200      //batas jarak dari sensor

#define SERVO_PIN 22
#define DISTANCE_THRESHOLD  10
#define LED1 23

DHT dht (DHTPIN, DHTTYPE);
Servo servo;

float duration_us, distance_cm, kapasitas, tinggitempatsampah;

void setup() {

  Serial.begin (9600);  
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  pinMode(LED1, OUTPUT);

  servo.attach(SERVO_PIN);
  servo.write(0);
  dht.begin();
}

void loop() {
  float t = dht.readTemperature();
  float h = dht.readHumidity();
 
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);


  duration_us = pulseIn(ECHO_PIN, HIGH);

  distance_cm = 0.017 * duration_us;

  kapasitas = tinggitempatsampah * 100;

  if (distance_cm <= DISTANCE_THRESHOLD){
    servo.write(0);
    digitalWrite(LED1, HIGH);
  }

  if (distance_cm > DISTANCE_THRESHOLD){
    servo.write(90);
    digitalWrite(LED1, LOW);
  }

  if (kapasitas > 100){
    lcd.setCursor(0,0);
    lcd.print("   PENUH   ");
    delay(1500);
    lcd.clear();
  }

  Serial.println("Suhu = ");
  Serial.print(t);
  Serial.println(" C");
  Serial.println("Kelembaban = ");
  Serial.print(h);
  Serial.println(" %");

  Serial.print("distance: ");
  Serial.print(distance_cm);
  Serial.println(" cm");

  Serial.println("Kapasitas: ");
  Serial.print(kapasitas);
  Serial.println(" %");

  delay(1000);
}