#include "DHTesp.h"
#define ECHO_PIN 12
#define TRIG_PIN 13
int LED1 = 14;
int BUZZER = 2;
const int DHT_PIN = 15;

DHTesp dhtSensor;

void setup() {
  Serial.begin(115200);
  pinMode(LED1, OUTPUT);
  pinMode(BUZZER, OUTPUT);
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
}

float readDistanceCM() {
  digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);
  int duration = pulseIn(ECHO_PIN, HIGH);
  return duration * 0.034 / 2;
}

void loop() {
  float distance = readDistanceCM();
  bool isNearby = distance < 100;
  digitalWrite(LED1, isNearby);
  Serial.print("Measured distance: ");
  Serial.println(readDistanceCM());
  Serial.println("---");

  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  if((data.temperature>38)&&(data.humidity<20)){
    tone(BUZZER, 1000);
    Serial.println("BUZZER ON->SUHU PANAS");
  } else{
    digitalWrite(BUZZER, LOW);
  }

  delay(1000);
}