#include <Arduino.h>
#include <TM1637Display.h>

#define coinSlot 2
#define CLK 5
#define DIO 6

#define TEST_DELAY 15000

uint8_t allDigits[] = { 0xff, 0xff, 0xff, 0xff };
uint8_t blank[] = { 0x0, 0x0, 0x0, 0x0 };

TM1637Display display(CLK, DIO);

int coinSlotStatus;
int h = 0;
int m = 0;
int s = 0;

boolean minutes = true;

void setup() {

  display.setBrightness(0x0f);
  display.setSegments(blank);
  display.showNumberDec(0, true);
  pinMode(coinSlot, INPUT_PULLUP);

}

void loop() {
  
  coinSlotStatus = digitalRead(coinSlot);
  delay(30);
  if(coinSlotStatus == 0){
    m += 5;
    display.showNumberDecEx(m, 0b11100000, true, 2, 0);
    delay(30);
  }

  if(coinSlotStatus == 0){

    //count down for seconds
    for(int s = 59; s >= 0; s--){
      display.showNumberDecEx(s, 0b11100000, true, 2, 2);
      delay(1000);
    }
  }
}