//Nama : Mohammad Hisyam Mirza
//NIM : 20200130014

//jika suhu mencapai 30 derajat C lampu 1  menyala 5 detik setelah itu padam, 
//jika suhu kurang dari 29 derajat lampu menyala selama 4 detik, 
//setelah itu lampu padam, apabila jarak mecapai 45 cm lampu 2 menyala selama 3.5 detik
//setelah itu mati,

//UNTUK SENSOR SUHU
#include "DHT.h"
#define DHTPIN 3
#define DHTTYPE DHT22  // (AM2302), AM2321
DHT dht(DHTPIN, DHTTYPE);

//UNTUK SENSOR JARAK
// defines pins numbers
const int trigPin = 5;
const int echoPin = 7;
const int ledPin1 = 13;
const int ledPin2 = 4;

// defines variables
long duration;
int distance;
int safetyDistance;

void setup() {
  pinMode(13, OUTPUT);
  pinMode(4, OUTPUT);
   dht.begin();
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT); 
pinMode(ledPin1, OUTPUT);
pinMode(ledPin2, OUTPUT);
Serial.begin(9600);
}


void loop() {
  
  //UNTUK SENSOR SUHU
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

  //check if any reads failed and exit early (to try again).
  if (temperature >=30){
    digitalWrite(13, HIGH);
    digitalWrite(4, HIGH);
    delay(5000);
    digitalWrite(13, LOW);
    digitalWrite(4, LOW);
  }
   else{ 
    digitalWrite(13, LOW);
    digitalWrite(4, LOW);
  }

  if (temperature <29){
    digitalWrite(13, HIGH);
    delay(4000);
    digitalWrite(13, LOW);
  }
   else{ 
    digitalWrite(13, LOW);
    digitalWrite(4, LOW);
  }
 

  Serial.print(F("Humidity: "));
  Serial.print(humidity);
  Serial.print(F("% Temperature: "));
  Serial.print(temperature);
  Serial.print(F("°C"));

  // Wait a few second between measurements.
  delay(3000);


//UNTUK SENSOR JARAK
  // Clears the trigPin
digitalWrite(trigPin, LOW);
delayMicroseconds(2);


digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);


duration = pulseIn(echoPin, HIGH);

distance= ((duration*0.05/2)+1);

safetyDistance = distance;
if (safetyDistance >= 45){
  digitalWrite(ledPin2, HIGH);
  delay(3500);
}
else{
  digitalWrite(ledPin2, LOW);
}

Serial.print(" ");
Serial.print(distance, 1);
  Serial.println("cm ");
	delay(1000);

}