// TM1637 SevenSegment Counter Wokwi Example
//
// https://wokwi.com/projects/339227323398095442

#include <TM1637.h>
#include "pitches.h"


const int CLK = 2;
const int DIO = 3;

TM1637 tm(CLK, DIO);

void setup() {
  tm.init();
  tm.set(BRIGHT_TYPICAL);
  Serial.begin(9600);
}

int a0;
int a1;
int a2;
int a3;
int from_a;
int from_set = 0;
int from_cur;

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

  a0 = analogRead(0);
  a0 = map(a0, 0, 1023, 0, 9);
  a1 = analogRead(1);
  a1 = map(a1, 0, 1023, 0, 9);
  a2 = analogRead(2);
  a2 = map(a2, 0, 1023, 0, 9);
  a3 = analogRead(3);
  a3 = map(a3, 0, 1023, 0, 9);
  from_a = a0 + a1*10 + a2*100 + a3*1000;

  if (millis() - timer >= 1000) {
    Serial.println(String(a3) + String(a2) + String(a1) + String(a0) );

    if (from_a == from_set) {
      if (from_cur > 0) {
        from_cur -= 1;
      } else {
        tone(8, NOTE_D5);
        delay(300);
        noTone(8);
      }
      
    } else {
      from_cur = from_a;
      from_set = from_a;
    }
    timer += 1000;        
    tm.display(0, (from_cur / 1000) % 10);
    tm.display(1, (from_cur / 100) % 10);
    tm.display(2, (from_cur / 10) % 10);
    tm.display(3, from_cur % 10);
  }
  

  




}