#include "RTClib.h"
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
#define OLED_RESET 4 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
RTC_DS1307 rtc; //create an instant of RTC
char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"}; //create a matrix for displaying the date
void setup () {
Serial.begin(115200);
//check rtc connection
if (! rtc.begin()) {
Serial.println("Couldn't find RTC");
}
rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3C for 128x64
Serial.println(F("SSD1306 allocation failed"));
for (;;);
}
display.clearDisplay();
display.setTextColor(WHITE);
display.setTextSize(2);
}
void loop () {
DateTime now = rtc.now();
display.clearDisplay();
display.setCursor(0, 0);
if (now.hour() < 10)
display.print('0');
display.print(now.hour());
display.print(':');
if (now.minute() < 10)
display.print('0');
display.print(now.minute());
display.print(':');
if (now.second() < 10)
display.print('0');
display.println(now.second());
display.setCursor(0, 25);
display.println(daysOfTheWeek[now.dayOfTheWeek()]);
display.setCursor(0, 50);
display.print(now.day());
display.print('/');
display.print(now.month());
display.print('/');
display.println(now.year());
display.display();
}