Button Project

hey guys,
i need i'm new arduino , programming in generel. try arduino micro work buttons. goal if button pressed send information serial. -i using button.h libary able use ishold , onrelease. buttons connected ground. dont receve on serial. heres code:

code: [select]




#include <button.h>

button button2 = button(2, low);
button button3 = button(3, low);
button button4 = button(4, low);
button button5 = button(5, low);
button button6 = button(6, low);
button button7 = button(7, low);
button button8 = button(8, low);
button button9 = button(9, low);
button button10 = button(10, low);
button button11 = button(11, low);
button button12 = button(12, low);

boolean holding2 = false;
boolean holding3 = false;
boolean holding4 = false;
boolean holding5 = false;
boolean holding6 = false;
boolean holding7 = false;
boolean holding8 = false;
boolean holding9 = false;
boolean holding10 = false;
boolean holding11 = false;
boolean holding12 = false;

void setup()
{
  serial.begin(9600);
  pinmode(2, input_pullup);
  pinmode(3, input_pullup);
  pinmode(4, input_pullup);
  pinmode(5, input_pullup);
  pinmode(6, input_pullup);
  pinmode(7, input_pullup);
  pinmode(8, input_pullup);
  pinmode(9, input_pullup);
  pinmode(10, input_pullup);
  pinmode(11, input_pullup);
  pinmode(12, input_pullup);
}

void loop()
{
  button2.listen();

  if (button2.onpress()) {
    serial.print("<click:");
    serial.print("20");
    serial.print(">"); 
  }

  if(!holding2 && button2.ishold()) {
    serial.print("<hold:");
    serial.print("20");
    serial.print(">");
    holding2 = true; 
  }

  if(holding2 && button2.onrelease()) {
    serial.print("<release:");
    serial.print("20");
    serial.print(">");
    holding2 = false;
  }


  button3.listen();

  if (button3.onpress()) {
    serial.print("<click:");
    serial.print("30");
    serial.print(">"); 
  }

  if(!holding3 && button3.ishold()) {
    serial.print("<hold:");
    serial.print("30");
    serial.print(">");
    holding3 = true; 
  }

  if(holding3 && button3.onrelease()) {
    serial.print("<release:");
    serial.print("30");
    serial.print(">");
    holding3 = false;
  }

  button4.listen();

  if (button4.onpress()) {
    serial.print("<click:");
    serial.print("40");
    serial.print(">"); 
  }

  if(!holding4 && button4.ishold()) {
    serial.print("<hold:");
    serial.print("40");
    serial.print(">");
    holding4 = true; 
  }

  if(holding4 && button4.onrelease()) {
    serial.print("<release:");
    serial.print("40");
    serial.print(">");
    holding4 = false;
  }

  button5.listen();

  if (button5.onpress()) {
    serial.print("<click:");
    serial.print("50");
    serial.print(">"); 
  }

  if(!holding5 && button5.ishold()) {
    serial.print("<hold:");
    serial.print("50");
    serial.print(">");
    holding5 = true; 
  }

  if(holding5 && button5.onrelease()) {
    serial.print("<release:");
    serial.print("50");
    serial.print(">");
    holding5 = false;
  }

  button6.listen();

  if (button6.onpress()) {
    serial.print("<click:");
    serial.print("60");
    serial.print(">"); 
  }

  if(!holding6 && button6.ishold()) {
    serial.print("<hold:");
    serial.print("60");
    serial.print(">");
    holding6 = true; 
  }

  if(holding6 && button6.onrelease()) {
    serial.print("<release:");
    serial.print("60");
    serial.print(">");
    holding6 = false;
  }

  button7.listen();

  if (button7.onpress()) {
    serial.print("<click:");
    serial.print("70");
    serial.print(">"); 
  }

  if(!holding7 && button7.ishold()) {
    serial.print("<hold:");
    serial.print("70");
    serial.print(">");
    holding7 = true; 
  }

  if(holding7 && button7.onrelease()) {
    serial.print("<release:");
    serial.print("70");
    serial.print(">");
    holding7 = false;
  }

  button8.listen();

  if (button8.onpress()) {
    serial.print("<click:");
    serial.print("80");
    serial.print(">"); 
  }

  if(!holding8 && button8.ishold()) {
    serial.print("<hold:");
    serial.print("80");
    serial.print(">");
    holding8 = true; 
  }

  if(holding8 && button8.onrelease()) {
    serial.print("<release:");
    serial.print("80");
    serial.print(">");
    holding8 = false;
  }

  button9.listen();

  if (button9.onpress()) {
    serial.print("<click:");
    serial.print("90");
    serial.print(">"); 
  }

  if(!holding9 && button9.ishold()) {
    serial.print("<hold:");
    serial.print("90");
    serial.print(">");
    holding9 = true; 
  }

  if(holding9 && button9.onrelease()) {
    serial.print("<release:");
    serial.print("90");
    serial.print(">");
    holding9 = false;
  }

  button10.listen();

  if (button10.onpress()) {
    serial.print("<click:");
    serial.print("100");
    serial.print(">"); 
  }

  if(!holding10 && button10.ishold()) {
    serial.print("<hold:");
    serial.print("100");
    serial.print(">");
    holding10 = true; 
  }

  if(holding10 && button10.onrelease()) {
    serial.print("<release:");
    serial.print("100");
    serial.print(">");
    holding10 = false;
  }

  button11.listen();

  if (button11.onpress()) {
    serial.print("<click:");
    serial.print("110");
    serial.print(">"); 
  }

  if(!holding11 && button11.ishold()) {
    serial.print("<hold:");
    serial.print("110");
    serial.print(">");
    holding11 = true; 
  }

  if(holding11 && button11.onrelease()) {
    serial.print("<release:");
    serial.print("110");
    serial.print(">");
    holding11 = false;
  }

  button12.listen();

  if (button12.onpress()) {
    serial.print("<click:");
    serial.print("120");
    serial.print(">"); 
  }

  if(!holding12 && button12.ishold()) {
    serial.print("<hold:");
    serial.print("120");
    serial.print(">");
    holding12 = true; 
  }

  if(holding12 && button12.onrelease()) {
    serial.print("<release:");
    serial.print("120");
    serial.print(">");
    holding12 = false;
  }
}

thanky in advance

where did button library using? version linked playground doesn't have listen() method.

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