#include <Bounce2.h>
#define green 2
#define red 3
int num = 0;
Bounce2::Button tipka1, tipka2 = Bounce2::Button();

void setup() {
  Serial.begin(115200);
  tipka1.attach(red, INPUT_PULLUP);
  tipka2.attach(green, INPUT_PULLUP);
  tipka1.interval(10);
  tipka2.interval(10);
  tipka1.setPressedState(LOW);
  tipka2.setPressedState(LOW);
}

void loop() {
  tipka1.update();
  tipka2.update();
  if(tipka1.pressed()){
    num++;
    Serial.println(num);
  }
  if(tipka2.pressed()){
    num--;
    Serial.println(num);
  }
}