#include <OneWire.h>
#include <DallasTemperature.h>
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Fonts/FreeSans9pt7b.h>
#include <Q2HX711.h>
#include <Adafruit_SSD1306.h>

int setweightbuttonstate = 0;
const int setweightbuttonpin =6;
const byte hx711_data_pin = 4;
const byte hx711_clock_pin = 5;

Q2HX711 hx711(hx711_data_pin, hx711_clock_pin);

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels

#define OLED_RESET     -1 // Reset pin # (or -1 if sharing Arduino reset pin)
#define SCREEN_ADDRESS 0x3c ///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32

int settemp= 0;

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

unsigned long x = 0, y = 0;
unsigned long dataArray[10];
int j = 0;

// Temperature prob data wire is plugged into port 2 on the Arduino
#define ONE_WIRE_BUS 2
// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
OneWire oneWire(ONE_WIRE_BUS);

// Pass our oneWire reference to Dallas Temperature. 
DallasTemperature sensors(&oneWire);

// arrays to hold device address
DeviceAddress insideThermometer;




void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); // Don't proceed, loop forever
  }
  pinMode(4, INPUT); //data line  //Yellow cable
  pinMode(5, OUTPUT);  //SCK line  //Orange cable
  pinMode(setweightbuttonpin, INPUT);
  sensors.begin();
  if (!sensors.getAddress(insideThermometer, 0)) Serial.println("Unable to find address for Device 0");
  sensors.setResolution(insideThermometer, 9);
  display.clearDisplay();
  
  

}
float tempC;
int tempC2;

void printTemperature(DeviceAddress deviceAddress) {
tempC = sensors.getTempC(deviceAddress);
  if(tempC == DEVICE_DISCONNECTED_C) 
  {
    //display.clearDisplay();
    display.setCursor(00, 00); 
    display.setTextSize(2);
    display.setTextColor(SSD1306_WHITE);
    //display.print("Error: Could not read temperature data");
    display.display();

    return;
  }
  
  
}
int tare;
void loop(void) {
  display.clearDisplay();
  // put your main code here, to run repeatedly:
  Serial.begin(9600);
  //Serial.readBytes(tempC2);
  //Serial.print(tempC2);
  sensors.requestTemperatures();
  printTemperature(insideThermometer);
  display.setCursor(0, 0);
  display.setTextSize(1);
  setweightbuttonstate = digitalRead(setweightbuttonpin); 
  display.setTextColor(WHITE);
  if(setweightbuttonstate == HIGH){
    tare = hx711.read()/100;
  }
  display.print("Chamber: ");
  display.print(tempC);
  display.println("C");
  display.print("Condenser: ");
  display.println(tempC2);
  display.println(tare);
  display.display();
  delay(60);

  for (int j = 0; j < 10; j++)
  {
    digitalWrite(4, LOW);//SCK is made LL
    while (digitalRead(5) != LOW) //wait until Data Line goes LOW
      ;
    {
      for (int i = 0; i < 24; i++)  //read 24-bit data from HX711
      {
        clk();      //generate CLK pulse to get MSB-it at A1-pin
        bitWrite(x, 0, digitalRead(5));
        x = x << 1;
      }
      clk();  //25th pulse
      Serial.println(x, HEX);
      y = x;
      x = 0;
      delay(1000);
    }
    dataArray[j] = y;
  }

  Serial.println("===averaging process=========");
  unsigned long count = 0;

  for (j = 0; j < 10; j++)
  {
    count += dataArray[j];
  }
  Serial.print("Average Count = ");
  count = count / 10;
  Serial.println(count, HEX);
}

void clk()
{
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
}