/* www.arduinopoint.com */
/* Digital 24 hour time format clock by Arduino, TM1637 4 digit 7 segment display and DS3231 RTC.*/

// Add libraries: RTClib and TM1637
#include "RTClib.h"
#include <TM1637Display.h>
#include <FastLED.h>

#define NUM_LEDS 60
#define DATA_PIN 5

// Define the connections pins for TM1637 4 digit 7 segment display
#define CLK 7
#define DIO 8

unsigned char hourS = 0;
unsigned char minuteS = 0;
unsigned char secondS = 0;

// Create rtc and display object
RTC_DS3231 rtc;
TM1637Display display = TM1637Display(CLK, DIO);
CRGB leds[NUM_LEDS];

void setup() {
  // Begin serial communication at a baud rate of 9600
  Serial.begin(9600);
  // Wait for console opening
  // delay(3000);

  // Initialize the FastLED library
  FastLED.addLeds<WS2812, DATA_PIN, GRB>(leds, NUM_LEDS);
  
  // Check if RTC is connected correctly
  if (!rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }
  // Check if the RTC lost power and if so, set the time:
  if (rtc.lostPower()) {
    Serial.println("RTC lost power, let's set the time!");
    // The following line sets the RTC to the date & time this sketch was compiled:
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    // rtc.adjust(DateTime(2014, 1, 21, 3, 0, 0));
  }

  // Set the display brightness (0-7):
  display.setBrightness(5);
  // Clear the display:
  display.clear();

 clearLEDS();

}

void loop() {
  // Set the LED to blue
  unsigned long puk = millis()/1000;
  leds[secondS] = CHSV(map(secondS,1,60,0,255), 255, 255); 
 
if ( secondS == 59 ){
  clearLEDS();
}
  // Get current date and time
  DateTime now = rtc.now();

  hourS = now.hour();
  minuteS = now.minute();
  secondS = now.second();
  
  // Adjust hour for 12-hour format if needed
  if (hourS > 12) {
    hourS = hourS - 12;
  }

  // Create time format to display:
  int displaytime = (hourS * 100) + minuteS;

  // Print displaytime and seconds to the Serial Monitor
  Serial.print("Time: ");
  Serial.print(displaytime);
  Serial.print(" Seconds: ");
  Serial.println(secondS);

  // Display the current time in 24 hour format with leading zeros enabled and a center colon:
  display.showNumberDecEx(displaytime, 0b11100000, true);

  // Remove the following lines of code if you want a static instead of a blinking center colon:
  // delay(1000);

  display.showNumberDec(displaytime, true); // Prints displaytime without center colon.
 FastLED.show();
  // delay(1000);
}





void clearLEDS() {
  for(int i = 0; i < NUM_LEDS; i++) {
    leds[i] = CRGB::Black; 
  }
  FastLED.show(); 
}