
#include"button.h"
button btn(5);
void setup(){
  Serial.begin(9600);
  //pinMode(2, INPUT_PULLUP);
  pinMode(LED_BUILTIN, OUTPUT);
}
int c;bool b;
void loop(){
  bool x=btn.check(3,1);
  if(x){b=!b;delay(50);}
  digitalWrite(LED_BUILTIN,b);
}

sketch.ino

diagram.json

#include<Arduino.h>
#include"button.h"
int last;bool a=1;

bool button::check() {
 pinMode(_btn_, INPUT_PULLUP);
     //last=digitalRead(_btn_) ;

    a=1;
  if ( digitalRead(_btn_)!=last ) {
  a=1;
    if(digitalRead(_btn_)==0){a=0;}
    delay(150);
    last=digitalRead(_btn_) ;
  }
return !a;
}
unsigned long mls;int time;
bool button::check(int t){
  if(digitalRead(_btn_)==0){

if(millis()-mls>=1000){
time++;
mls=millis();
}
  if(digitalRead(_btn_)==0&&time>=t){
  return !digitalRead(_btn_);}

  
}
else time=0;return 0;

}
bool button::check(int t, bool db){
  if(check(t)){
    return check();
  }
}

button.cpp

#ifndef button_h
#define button_h

class button {
  public:
    int _btn_;
    bool check();
    bool check(int t);
    bool check(int t,bool db);
    button(int a) {
      _btn_ = a;
    }
};
#endif