#include<TM1637.h>
const int CLK = 2;
const int DIO = 3;
TM1637 tm(CLK, DIO);
void setup(){
  tm.init();
  tm.set(7);
}
unsigned int counter = 0;

void loop(){
  tm.display(0, (counter/1000)% 10);
  tm.display(1, (counter/100)% 10);
  tm.display(2, (counter/10)% 10);
  tm.display(3,counter%10);

  counter++;
  if(counter == 100){
    counter = 0;
  }
  delay(100);
}