#include <Bounce2.h>
#define btnRed 3
#define btnGreen 2
int stevec;
Bounce2::Button tipka1, tipka2 = Bounce2::Button();

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

void loop() {
  tipka1.update();
  tipka2.update();

  if(tipka1.pressed()){
    stevec++;
    Serial.println(stevec);
  }
  if(tipka2.pressed()){
    stevec--;
    Serial.println(stevec);
  }
}