#include "DHT.h"

#define DHTPIN 2     
#define DHTTYPE DHT22   

DHT dht(DHTPIN, DHTTYPE);

#define ledbiru 13
#define ledkuning 12
#define ledmerah 11

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Fonts/FreeSerif9pt7b.h>
#define SCREEN_WIDTH 128 
#define SCREEN_HEIGHT 64 

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

int status = 0;

void setup() {
  // put your setup code here, to run once:
 pinMode(ledbiru, OUTPUT);
 pinMode(ledkuning, OUTPUT);
 pinMode(ledmerah, OUTPUT);
 digitalWrite(ledbiru, LOW);
 digitalWrite(ledkuning, LOW);
 digitalWrite(ledmerah, LOW);
 Serial.begin(9600);
  Serial.println(F("DHTxx test!"));

  dht.begin();

  
}

void loop() {
  // put your main code here, to run repeatedly:

  delay(2000);

  float h = dht.readHumidity();
  float t = dht.readTemperature();
  float f = dht.readTemperature(true);

  if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }

  float hif = dht.computeHeatIndex(f, h);
 
  float hic = dht.computeHeatIndex(t, h, false);

  Serial.print(F("Humidity: "));
  Serial.print(h);
  Serial.print(F("%  Temperature: "));
  Serial.print(t);
  Serial.print(F("°C "));
  Serial.print(f);
  Serial.print(F("°F  Heat index: "));
  Serial.print(hic);
  Serial.print(F("°C "));
  Serial.print(hif);
  Serial.println(F("°F"));

if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { 
    Serial.println("SSD1306 allocation failed");
    for(;;);
  }

  if (t < 29) {
    digitalWrite(ledmerah , LOW);
    digitalWrite(ledkuning , LOW);
    digitalWrite(ledbiru , HIGH);
    // delay(2000);
  // display.setFont(&FreeSerif9pt7b);
  display.clearDisplay();
  display.setTextSize(1);             
  display.setTextColor(WHITE);        
  display.setCursor(0,20);
  display.print("suhu : ");
  display.println(t);          
  display.println("suhu terlalu rendah");
  display.display();
  // delay(2000); 
  } else if ( t >= 29 && t <= 35) {
    digitalWrite(ledmerah , LOW);
    digitalWrite(ledkuning , HIGH);
    digitalWrite(ledbiru , LOW);
    // delay(2000);
  // display.setFont(&FreeSerif9pt7b);
  display.clearDisplay();
  display.setTextSize(1);             
  display.setTextColor(WHITE);        
  display.setCursor(0,20);         
  display.println("suhu cukup");
  display.display();
  delay(2000); 
  } 
  else if (t > 35) {
    digitalWrite(ledmerah , HIGH);
    digitalWrite(ledkuning , LOW);
    digitalWrite(ledbiru , LOW);
    // delay(2000);
  //display.setFont(&FreeSerif9pt7b); 
  display.clearDisplay();
  display.setTextSize(1);             
  display.setTextColor(WHITE);        
  display.setCursor(0,20);         
  display.println("suhu terlalu panas");
  display.display();
  delay(2000); 
  }

  
  
  
}