#define BOUNCE 60
#define LONG_PRESS 650
class Yubtn {
  private:
    uint8_t _pin;
    uint8_t presspin;
    bool button;
    bool click;
    bool shortCl;
    bool longCl;
    bool allCl;
    bool push = false;
    uint32_t pressTime;
  public:
    void begin(uint8_t pin) {
      _pin = pin;
      pinMode(_pin, INPUT_PULLUP);
    }
    void tick() {
      button = digitalRead(_pin);
      presspin = 0;
      shortCl = false;
      longCl = false;
      allCl = false;
      if (!button && !push) {
        pressTime = millis();
        push = true;
      }
      if (push && millis() - pressTime >= LONG_PRESS) {
        pressTime = millis();
        //регистрация двойного нажатия
        presspin = PIND;
        presspin = presspin >> 2; //выталкиваем RX TX
        presspin ^= (presspin >> 4) ^ (presspin >> 2) ^ (presspin >> 1);
        presspin &= 1;         //фильтр одиночного нажатия
        //для трех кнопок
        if (presspin) {
          allCl = true;
        }
        click = true;
        longCl = true;              //флаги длинного нажатия
      }
      if (button && push) {           //отпускаем кнопку
        if (!click && millis() - pressTime >= BOUNCE) {
          shortCl = true;	              //флаг короткого нажатия
        }
        pressTime = millis();
        push = false;
        click = false;
      }
    }
    bool shortClick() {
      if (!allCl && shortCl)
        return true;
      else
        return false;
    }
    bool longClick() {
      if (!allCl && longCl)
        return true;
      else
        return false;
    }
    bool allClick() {
      if (allCl)
        return true;
      else
        return false;
    }
};

////
Yubtn Btn1;
Yubtn Btn2;
Yubtn Btn3;
bool led;
void setup() {
  Serial.begin(9600);//убрал чтоб взвесить
  Btn1.begin(2);
  Btn2.begin(3);
  Btn3.begin(4);
}
void loop() {
  bool nextLine = false;
  Btn1.tick();
  Btn2.tick();
  Btn3.tick();

  if (Btn1.longClick()) led = !led, Serial.print("long1;"), nextLine = true;
  if (Btn1.shortClick()) led = !led, Serial.print("short1;"), nextLine = true;
  if (Btn2.longClick())led = !led, Serial.print("long2;"), nextLine = true;;
  if (Btn2.shortClick()) led = !led, Serial.print("short2;"), nextLine = true;
  if (Btn3.longClick()) led = !led, Serial.print("long3;"), nextLine = true;
  if (Btn3.shortClick()) led = !led, Serial.print("short3;"), nextLine = true;
  if (Btn1.allClick()) led = !led, Serial.print("all1;"), nextLine = true;
  if (Btn2.allClick()) led = !led, Serial.print("all2;"), nextLine = true;
  if(nextLine) 
    Serial.println("");
  //else Serial.println("-");

}