bool flag=true;

bool FlagForStop=false;

bool con_but;
bool ls_con_but=true;
unsigned long time;
int stop;
int aa=0;

void setup() {
  Serial.begin(9600);
 DDRB=0<<2;

}

void loop() {
  if(flag==true){
  if(millis()-time>=1000){
      Serial.println(1);
      time=millis();
    }
  }

  con_but=PINB>>2;
  if(con_but==0 && ls_con_but==1){
    debounce(100);
    FlagForStop=!FlagForStop;
    while(FlagForStop==true){
      if (millis()-time>100){
        stop++;
        Serial.println(stop);
      }
      if (!(PINB>>2)){
        stop = 0;
        debounce(500);
        break;
      }
    }
  } 
}
void debounce(int Delay){
  unsigned long currentTime=millis();
  Delay+=currentTime;
  while(currentTime < Delay ){
    currentTime=millis();
  }
}