/*
    A library for the 4 digit display

    Copyright (c) 2012 seeed technology inc.
    Website    : www.seeed.cc
    Author     : Frankie.Chu
    Create Time: 9 April,2012
    Change Log :

    The MIT License (MIT)

    Permission is hereby granted, free of charge, to any person obtaining a copy
    of this software and associated documentation files (the "Software"), to deal
    in the Software without restriction, including without limitation the rights
    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the Software is
    furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in
    all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    THE SOFTWARE.
*/

/*
    example Requirement

    Install libraries on Arduino Library Mnager.

    TimerOne - maintained by Paul Stoffregen
*/

#include <TimerOne.h>
#include "TM1637.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;


#define CLK 2//pins definitions for TM1637 and can be changed to other ports
#define DIO 3
TM1637 tm1637(CLK, DIO);

void setup() {
    tm1637.set();
    tm1637.init();
    Timer1.initialize(500000);//timing for 500ms
    Timer1.attachInterrupt(TimingISR);//declare the interrupt serve routine:TimingISR
}
void loop() {
    if (Update == ON) {
        TimeUpdate();
        tm1637.display(TimeDisp);
    }

}
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;
    }
    // Serial.println(second);
    ClockPoint = (~ClockPoint) & 0x01;
}
void TimeUpdate(void) {
    if (ClockPoint) {
        tm1637.point(POINT_ON);
    } else {
        tm1637.point(POINT_OFF);
    }
    TimeDisp[0] = hour / 10;
    TimeDisp[1] = hour % 10;
    TimeDisp[2] = minute / 10;
    TimeDisp[3] = minute % 10;
    Update = OFF;
}