#include <TimerOne.h>
#include <ezButton.h>
#include <TM1637.h>
#include <ArduinoTrace.h>
#define ON 1
#define OFF 0

//int8_t TimeDisp[] = {0x00,0x00,0x00,0x00};
unsigned char ClockPoint = 1;
unsigned char Update;
unsigned char halfsecond = 0;
unsigned char second;
unsigned char minute = 0;
unsigned char hour = 12;

// Display declaration
TM1637 DISP;
#define CLK 2//pins definitions for TM1637 and can be changed to other ports
#define DIO 3


void setup()
{
  Serial.begin(115200);


  //Display init
  DISP.begin(CLK, DIO, 4);       //  clockpin, datapin, #digits
  DISP.displayClear();
  DISP.setBrightness(7);     // full brightness, default is 3


  Timer1.initialize(500000);//timing for 500ms
  Timer1.attachInterrupt(TimingISR);//declare the interrupt serve routine:TimingISR
}
void loop()
{
  if(Update == ON)
  {
    TimeUpdate();
    DISP.displayTime(hour,minute,1);
  }

}
void TimingISR()
{
  halfsecond ++;
  Update = ON;
  if(halfsecond == 2){
    second ++;
    if(second == 60)
    {
      minute ++;
      if(minute == 60)
      {
        hour ++;
        if(hour == 24)hour = 0;
        minute = 0;
      }
      second = 0;
    }
    halfsecond = 0;
  }
  ClockPoint = (~ClockPoint) & 0x01;
}
void TimeUpdate(void)
{
  if(ClockPoint)DISP.displayTime(hour,minute,1);
  else DISP.displayTime(hour,minute,0);
  Update = OFF;
}