// VARIABLES //

  uint8_t digit_centaine;
  uint8_t digit_dizaine;
  uint8_t digit_unite;
  unsigned long tempo;
  uint16_t compteur;
  bool etat_button = false;
  uint8_t seuil = 5;




uint8_t seven_seg_digits[10][7] = {
  { 0,1,1,1,1,1,1},//0
  {0,0,0,0,1,1,0}, //1
  {1,0,1,1,0,1,1},//2
  {1,0,0,1,1,1,1}, // 3
  {1,1,0,0,1,1,0}, // 4
  {1,1,0,1,1,0,1}, // 5
  {1,1,1,1,1,0,1}, // 6
  {0,0,0,0,1,1,1}, // 7
  {1,1,1,1,1,1,1}, // 8
  {1,1,0,1,1,1,1} // 9
};

//byte hwPin[7] = {15,2,4,5,18,19,21};
byte hwPin[7] = {21,19,18,5,4,2,15};
void sevenSegWrite(byte digit) 
{
 for (byte segCount = 0; segCount < 7; ++segCount) 
 {
 digitalWrite(hwPin[segCount], seven_seg_digits[digit][segCount]);
 }
}

void getDigital(byte digit)
{
  digit_centaine = digit / 100;
  digit_dizaine = ( digit % 100 ) / 10;
  digit_unite = ( digit % 100)  % 10;
}


void setup() {
    Serial.begin(9600);
    
  for(byte i = 0; i < 7; i++){
    pinMode(hwPin[i], OUTPUT);
  }
  pinMode(27, OUTPUT); // DIG1
  pinMode(26, OUTPUT); // DIG2
  pinMode(25, OUTPUT); // DIG3
  pinMode(23, INPUT_PULLUP); // Button START
  pinMode(14, INPUT_PULLUP); // Button STOP
  pinMode(33, OUTPUT); // Buzzer
}

void loop() {


  bool button_on = digitalRead(23);
  bool button_off = digitalRead(14);
  //compteur = millis() / 1000;
  
  if((millis() > tempo ) && etat_button){
    compteur++;
     
    if(compteur >= seuil){
      digitalWrite(33,HIGH);
    }
    tempo = millis() + 500;
  }

  if(!button_on){
    compteur = 0;
    etat_button = true;
    Serial.println(etat_button);
  }

    if(!button_off){
    etat_button = false;
    Serial.println(etat_button);
    Serial.println(compteur);
    digitalWrite(33,LOW); // Buzzer
    }
  getDigital(compteur);

  

  sevenSegWrite(digit_centaine);
  
  digitalWrite(27, LOW);
  digitalWrite(26,HIGH);
  digitalWrite(25,HIGH);
  delay(20);
  digitalWrite(27, HIGH);
sevenSegWrite(digit_dizaine);
  digitalWrite(26, LOW);
  digitalWrite(25,HIGH);
  delay(20);
  digitalWrite(26, HIGH);
sevenSegWrite(digit_unite);
  digitalWrite(27, HIGH);
  digitalWrite(25,LOW);
  delay(20);
  digitalWrite(25,HIGH);
 
       

    
}