#include "DHT.h"
#include <Servo.h>
#define Trig 11
#define Echo 12
#define DHTPIN 10
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);
Servo myservo;

void setup () {
  Serial.begin(9600);
  //Sensor
  Serial.println("Hand Sanitizer");
  dht.begin();

  //Ultrasonik
  pinMode(Trig, OUTPUT);
  pinMode(Echo, INPUT);

  //Servo
  myservo.attach(9);
}

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

void loop () {
  //Ultrasonik
  delay(1000);
  float distance = readDistanceCM();
  Serial.print("Pembacaan Sensor Ultrasonik: ");
  Serial.print(readDistanceCM());
  Serial.println(" cm");

  //Sensor
  float temperature = dht.readTemperature();

  // Check if any reads failed and exit early (to try again).
  if (isnan(temperature)) {
    Serial.println("Sensor Gagal Berfungsi");
    return;
  }

  Serial.print(" Temperature: ");
  Serial.print(temperature);
  Serial.print("°C");
  Serial.println();

  if (distance <5){
    myservo.write(180);
    float temperature = dht.readTemperature();
    Serial.print("Suhu Anda :");
    Serial.print(temperature);
    Serial.println(" °C");
    if (temperature >= 37){
    Serial.println("Anda Demam");
    }

    else{
    Serial.println("Suhu Anda Normal");
    }
  }

  else{
    Serial.print("Letakkan Tangan Anda Di Bawah");
    myservo.write(0);
  }
}