//This program increases a counter displayed on a 7-segment display by 1. This program is an up counter. Changing line 47 to decrement will turn the code into a down counter.
//The library used in this code is different from the library used in the final code. However, the functions functioanlities remain the same. Only the syntax is changed.

#include <TM1637.h>

//{0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
//0~9,A,b,C,d,E,F
 

#define CLK 26//Pins for TM1637       
#define DIO 27
#define BUTTON 40
int count = 0, count_1, count_2, count_3, count_4, count_5, count_6, count_7;
int control= 0;
 
TM1637 tm1637(CLK,DIO);
 
void setup(){
  
  tm1637.init();
  tm1637.set(2); 
  //BRIGHT_TYPICAL = 2,BRIGHT_DARKEST = 0,BRIGHTEST = 7;

  pinMode(BUTTON,INPUT);

  tm1637.display(3,1);
  tm1637.display(2,2);
  tm1637.display(1,3);
  tm1637.display(0,4);
 
  delay(1500);//Delay to let system boot

 
}//end "setup()"
 

 
void loop(){
  if(digitalRead(BUTTON) == HIGH)
  {
    control = HIGH;
  }
  while(digitalRead(BUTTON) == HIGH)
  {
  }
  if(digitalRead(BUTTON) == LOW and control == HIGH)
  {
    count++;
    control = LOW;
  }
  
   if(count == 999)
   {
    count = 0;
   }
  
  count_1 = count%10;
  count_3 = (count/10)%10;
  count_5 = (count/100)%10;
  count_7 = (count/1000)%10;

  tm1637.display(3,count_1);
  tm1637.display(2,count_3);
  tm1637.display(1,count_5);
  tm1637.display(0,count_7);
 
   delay(10);
}// end loop()