#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <IRremote.h>
#include "DHT.h"
#define DHTPIN 2 



#define OLED_WIDTH 128 
#define OLED_HEIGHT 64 
#define DHTPIN 1
#define DHTTYPE DHT22 
/*DHT11*/

DHT dht(DHTPIN, DHTTYPE);
IRrecv receiver(0);

Adafruit_SSD1306 oled(OLED_WIDTH, OLED_HEIGHT, &Wire, -1);

int sensor_onboard_temp = 1;

void setup() {
  
  pinMode(sensor_onboard_temp, INPUT);

  dht.begin();
  if (!oled.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
  Serial.println(F("SSD1306 allocation failed")); while (true);}

  delay(1000); 

  receiver.enableIRIn();     

  oled.clearDisplay();
  oled.setTextSize(2);          
  oled.setTextColor(WHITE);     
  oled.setCursor(20, 20);      
  oled.println("Sensors");
  oled.setCursor(0, 42);      
  oled.println("Module");
  oled.setTextSize(1);  
  oled.setCursor(0, 0);       
  oled.println(" BY ALB"); 
  oled.display();   
  
}


/*float analogReadTemp(float vref = 3.3f)*/

float read_onboard_temp(){

float conversion_factor = 3.3 / 65535;
float volt_temp = analogRead(sensor_onboard_temp)*conversion_factor;
float temperature = 27 - (volt_temp - 0.706)/0.001721;

return temperature;

}

void recieveIR(){

  

  oled.clearDisplay();
  oled.setTextSize(1);
  oled.setCursor(0, 0); 
  

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

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

if (receiver.decodedIRData.command == 104)
   {
   oled.print("TEMP OUT: "); oled.println(t);
   oled.print("TEMP INT: "); oled.println(read_onboard_temp());
   oled.print("TEMP INT 2: "); oled.println(analogReadTemp());
   }
if (receiver.decodedIRData.command == 176)
  {oled.print("HUMID: "); oled.print(h);}

 oled.display();

}

void loop() {

if (receiver.decode()) { recieveIR(); receiver.resume();  }

}