#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include "RTClib.h"
RTC_DS1307 rtc;

char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
 
// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
#define OLED_RESET     4 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
 
#define NUMFLAKES     10 // Number of snowflakes in the animation example
 
#define LOGO_HEIGHT   50
#define LOGO_WIDTH    50
static const unsigned char PROGMEM test_bmp[] =
{ 
 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 
0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 
0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 
0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 
0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 
0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0x8f, 0xff, 0x1f, 0xff, 0xc0, 0xff, 0xfc, 0x01, 0xf8, 0x03, 
0xff, 0xc0, 0xff, 0xf8, 0x00, 0x60, 0x01, 0xff, 0xc0, 0xff, 0xf0, 0x00, 0x00, 0x00, 0xff, 0xc0, 
0xff, 0xf0, 0x00, 0x00, 0x00, 0x7f, 0xc0, 0xff, 0xe0, 0x30, 0x00, 0xe0, 0x7f, 0xc0, 0xff, 0xe0, 
0xf8, 0x01, 0xf0, 0x7f, 0xc0, 0xff, 0xc0, 0xfc, 0x03, 0xf0, 0x3f, 0xc0, 0xff, 0xc1, 0xfe, 0x07, 
0xf8, 0x3f, 0xc0, 0xff, 0xc1, 0xfe, 0x07, 0xf8, 0x3f, 0xc0, 0xff, 0xc1, 0xff, 0x0f, 0xf8, 0x3f, 
0xc0, 0xff, 0xc1, 0xff, 0xff, 0xf8, 0x3f, 0xc0, 0xff, 0xc1, 0xff, 0xff, 0xf8, 0x3f, 0xc0, 0xff, 
0xe0, 0xff, 0xff, 0xf0, 0x3f, 0xc0, 0xff, 0xe0, 0xff, 0xff, 0xf0, 0x7f, 0xc0, 0xff, 0xe0, 0x7f, 
0xff, 0xe0, 0x7f, 0xc0, 0xff, 0xf0, 0x7f, 0xff, 0xe0, 0xff, 0xc0, 0xff, 0xf0, 0x3f, 0xff, 0xc0, 
0xff, 0xc0, 0xff, 0xf8, 0x1f, 0xff, 0x81, 0xff, 0xc0, 0xff, 0xf8, 0x1f, 0xff, 0x81, 0xff, 0xc0, 
0xff, 0xfc, 0x0f, 0xff, 0x03, 0xff, 0xc0, 0xff, 0xfe, 0x07, 0xfe, 0x07, 0xff, 0xc0, 0xff, 0xfe, 
0x01, 0xfc, 0x07, 0xff, 0xc0, 0xff, 0xff, 0x00, 0xf0, 0x0f, 0xff, 0xc0, 0xff, 0xff, 0x80, 0x20, 
0x1f, 0xff, 0xc0, 0xff, 0xff, 0xc0, 0x00, 0x3f, 0xff, 0xc0, 0xff, 0xff, 0xf0, 0x00, 0x7f, 0xff, 
0xc0, 0xff, 0xff, 0xf8, 0x01, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xfe, 0x03, 0xff, 0xff, 0xc0, 0xff, 
0xff, 0xff, 0x0f, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 
0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 
0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0};
 static const unsigned char PROGMEM test1_bmp[] =
 {
  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 
0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 
0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 
0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 
0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 
0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0x8f, 0xff, 0x1f, 0xff, 0xc0, 0xff, 0xfc, 0x01, 0xf8, 0x03, 
0xff, 0xc0, 0xff, 0xf8, 0x00, 0x60, 0x01, 0xff, 0xc0, 0xff, 0xf0, 0x00, 0x00, 0x00, 0xff, 0xc0, 
0xff, 0xf0, 0x00, 0x00, 0x00, 0x7f, 0xc0, 0xff, 0xe0, 0x30, 0x00, 0xe0, 0x7f, 0xc0, 0xff, 0xe0, 
0xf8, 0x01, 0xf0, 0x7f, 0xc0, 0xff, 0xc0, 0xfc, 0x03, 0xf0, 0x3f, 0xc0, 0xff, 0xc1, 0xfe, 0x07, 
0xf8, 0x3f, 0xc0, 0xff, 0xc1, 0xfe, 0x07, 0xf8, 0x3f, 0xc0, 0xff, 0xc1, 0xff, 0x0f, 0xf8, 0x3f, 
0xc0, 0xff, 0xc1, 0xff, 0xff, 0xf8, 0x3f, 0xc0, 0xff, 0xc1, 0xff, 0xff, 0xf8, 0x3f, 0xc0, 0xff, 
0xe0, 0xff, 0xff, 0xf0, 0x3f, 0xc0, 0xff, 0xe0, 0xff, 0xff, 0xf0, 0x7f, 0xc0, 0xff, 0xe0, 0x7f, 
0xff, 0xe0, 0x7f, 0xc0, 0xff, 0xf0, 0x7f, 0xff, 0xe0, 0xff, 0xc0, 0xff, 0xf0, 0x3f, 0xff, 0xc0, 
0xff, 0xc0, 0xff, 0xf8, 0x1f, 0xff, 0x81, 0xff, 0xc0, 0xff, 0xf8, 0x1f, 0xff, 0x81, 0xff, 0xc0, 
0xff, 0xfc, 0x0f, 0xff, 0x03, 0xff, 0xc0, 0xff, 0xfe, 0x07, 0xfe, 0x07, 0xff, 0xc0, 0xff, 0xfe, 
0x01, 0xfc, 0x07, 0xff, 0xc0, 0xff, 0xff, 0x00, 0xf0, 0x0f, 0xff, 0xc0, 0xff, 0xff, 0x80, 0x20, 
0x1f, 0xff, 0xc0, 0xff, 0xff, 0xc0, 0x00, 0x3f, 0xff, 0xc0, 0xff, 0xff, 0xf0, 0x00, 0x7f, 0xff, 
0xc0, 0xff, 0xff, 0xf8, 0x01, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xfe, 0x03, 0xff, 0xff, 0xc0, 0xff, 
0xff, 0xff, 0x0f, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 
0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 
0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0};

void setup() {
  Serial.begin(9600);
 
  // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3c)) { // Address 0x3D for 128x64
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); // Don't proceed, loop forever
  }
  Serial.begin(115200);
if (! rtc.begin()) {
    Serial.println("Couldn't find RTC");
    Serial.flush();
    abort();
  }

  // Show initial display buffer contents on the screen --
  // the library initializes this with an Adafruit splash screen.
  //display.display();
  //delay(2000); // Pause for 2 seconds
}
  // Clear the buffer
void loop() {
  display.clearDisplay();
  DateTime now = rtc.now();
  //display.drawLine(0, 0, 127,63, SSD1306_WHITE);
  //display.drawLine(127, 0, 0,63, SSD1306_WHITE);
  display.setTextSize(1);
  display.setTextColor(1);
  display.setCursor(0,30);
  display.print("Current time: ");
  display.print(now.year(), DEC);
  display.print('/');
  display.print(now.month(), DEC);
  display.print('/');
  display.print(now.day(), DEC);
  display.print(" (");
  display.print(daysOfTheWeek[now.dayOfTheWeek()]);
  display.print(") ");
  display.print(now.hour(), DEC);
  display.print(':');
  display.print(now.minute(), DEC);
  display.print(':');
  display.print(now.second(), DEC);
  display.println();
  display.print("Heat Rate");
  display.print(random(80,90));
  display.drawBitmap(80,10,test_bmp,LOGO_WIDTH,LOGO_HEIGHT,SSD1306_WHITE);
  display.display();
  delay(100);
  display.drawBitmap(80,10,test1_bmp,LOGO_WIDTH,LOGO_HEIGHT,SSD1306_WHITE);
  display.display();
  delay(100);
  }