//#include <OneWire.h>
#include <DallasTemperature.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

const int SCREEN_WIDTH = 128; // OLED display width, in pixels
const int SCREEN_HEIGHT = 64; // OLED display height, in pixels

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

// Data wire is plugged into digital pin 2 on the Arduino
#define ONE_WIRE_BUS 8

// Setup a oneWire instance to communicate with any OneWire device
OneWire oneWire(ONE_WIRE_BUS);	

// Pass oneWire reference to DallasTemperature library
DallasTemperature sensors(&oneWire);

int inputPin = 12;               // choose the input pin (for PIR sensor)
int pirState = LOW;             // we start, assuming no motion detected
int val = 0;                    // variable for reading the pin status

void setup(void)
{
  sensors.begin();	// Start up the library
  Serial.begin(9600);
  pinMode(inputPin, INPUT);

  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64
    Serial.println(F("SSD1306 allocation failed"));
    while(true);
  }

}

void loop(void)
{ 
  // Send the command to get temperatures
  sensors.requestTemperatures(); 

  //print the temperature in Celsius
  Serial.print("Temperature: ");
  Serial.print(sensors.getTempCByIndex(0));
  Serial.print((char)176);//shows degrees character
  Serial.print("C  |  ");
  
  //print the temperature in Fahrenheit
  Serial.print((sensors.getTempCByIndex(0) * 9.0) / 5.0 + 32.0);
  Serial.print((char)176);//shows degrees character
  Serial.println("F");
  
  delay(500);

  val = digitalRead(inputPin);  // read input value
  if (val == HIGH) {            // check if the input is HIGH
    
    if (pirState == LOW) {
      // we have just turned on
      Serial.println("Motion detected!");
      // We only want to print on the output change, not state
      pirState = HIGH;
    }
  } else {
    
    if (pirState == HIGH) {
      // we have just turned of
      Serial.println("Motion ended!");
      // We only want to print on the output change, not state
      pirState = LOW;
    }
  }

  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setCursor(0, 10);
  // Display static text

    if(val == HIGH){
    if (pirState == LOW) {
      // we have just turned on
      display.print("Motion detected!");
      // We only want to print on the output change, not state
      pirState = HIGH;
    }
  }else{
    display.println("Hello, World!");
  }

  display.println("Temperature:");
  display.print(sensors.getTempCByIndex(0));
  display.print((char)176);//shows degrees character
  display.print("C  |  ");
  display.display();

  if(sensors.getTempCByIndex(0) == '0'||'10'){
    display.println("Motion:");
    display.print("No");
    display.println("Cool");

  }else(sensors.getTempCByIndex(0) == '11'||'30'){
    display.println("Motion:");
    display.print("No");
    display.println("Hot");
  }else(sensors.getTempCByIndex(0) == '20'||'35'){
     display.println("Motion:");
    display.print("Yes");
    display.println("Human Detected");
  }



}