#include <TM1637.h>

const int CLK = 6;
const int DIO = 7;
TM1637 tm(CLK, DIO);

const int buttonPin = 2;
int buttonState = 0;

void setup() {
  tm.init();
  tm.set(BRIGHT_TYPICAL);
  pinMode(buttonPin, INPUT);
  Serial.begin(9600);
}

unsigned int counter = 0;

void loop() {
  buttonState = digitalRead(buttonPin);

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

  if (counter == 10000) {
    counter = 0;
  }
  delay(120);

  if (buttonState == HIGH) {
    counter++;
  }
  Serial.println(counter);
}