#include "SevSeg.h"

SevSeg sevseg; 

void setup() {
  byte numDigits = 4;
  byte digitPins[] = {2, 3, 4, 5};
  byte segmentPins[] = {6, 7, 8, 9, 10, 11, 12, 13};
  sevseg.begin(COMMON_ANODE, numDigits, digitPins, segmentPins, false, false, false, false);
  sevseg.setBrightness(90);

  pinMode(A2, OUTPUT);
}

void loop() {
  static unsigned long timer = millis();
  static int deciSeconds = 5959;

  if (millis() - timer >= 10) {
    timer += 10;
    deciSeconds--;

    if (deciSeconds < 0) {
      deciSeconds = 0;
    }
    sevseg.setNumber(deciSeconds, 2);
  }

  sevseg.refreshDisplay();

  if (deciSeconds == 0) {
    tone(A2, 1000);
    delay(1000); 
    noTone(A2);  
  }
}