ir control with button pad

hi, i`m setting 20 key button pad , infrared transmitter using library`s irlib.h , keypad.h control devices. seems working have keep pushing buttons volume , volume down on button pad. there way hold them down volume keep changing until release button. code is: buttons are u , d down @ bottom of code. thanks

code: [select]

#include <keypad.h>
#include <irlib.h>

irsend my_sender;

const byte rows = 5;
const byte cols = 4;
// define keymap
char keys[rows][cols] = {
    {'f','g','#','*'},
    {'1','2','3','u'},
    {'4','5','6','d'},
    {'7','8','9','b'},
    {'<','0','>','e'}
};
// connect keypad row4, row3, row2 row1 , row0 these arduino pins.
byte rowpins[rows] = {4, 5, 6, 7, 8};
// connect keypad col0, col1, col2 , col3 these arduino pins.
byte colpins[cols] = {13, 12, 11, 10};

// create keypad
keypad kpd = keypad( makekeymap(keys), rowpins, colpins, rows, cols );

void setup()
{
  serial.begin(9600);
}

void loop()
{
  char key = kpd.getkey();
  if(key)  // check valid key.
  {
    switch (key)
    {
     
      case '1':
      my_sender.send(nec,0xff6897, 32);
      break;
     
      case '2':
      my_sender.send(nec,0xff9867, 32);
      break;
     
      case '3':
      my_sender.send(nec,0xffb04f, 32);
      break;
     
      case '4':
      my_sender.send(nec,0xff30cf, 32);
      break;
     
      case '5':
      my_sender.send(nec,0xff18e7, 32);
      break;
     
      case '6':
      my_sender.send(nec,0xff7a85, 32);
      break;
     
      case '7':
      my_sender.send(nec,0xff10ef, 32);
      break;
     
      case '8':
      my_sender.send(nec,0xff38c7, 32);
      break;
     
      case '9':
      my_sender.send(nec,0xff5aa5, 32);
      break;
     
      case '0':
      my_sender.send(nec,0xff4ab5, 32);
      break;
     
      case '*':
      my_sender.send(nec,551489775, 32); //tv power button
      break;

      case '#':
      my_sender.send(nec,0xff52ad, 32);
      break;

      case 'f':
      my_sender.send(nec,0xff629d, 32); //up button on remote
      break;

      case 'g':
      my_sender.send(nec,0xffa857, 32); //down button on remote
      break;

      case '<':
      my_sender.send(nec,0xff22dd, 32); //left button on remote
      break;

      case '>':
      my_sender.send(nec,0xffc23d, 32); //right button on remote
      break;

      case 'e':
      my_sender.send(nec,0xff02fd, 32); //ok button on remote
      break;

      case 'u':
      my_sender.send(nec,551502015, 32); //tv volume up
      break;

      case 'd':
      my_sender.send(nec,551534655, 32); //tv volume down
    }
      {
      serial.println(key);
      }
  }
} 

some remotes send same code on , over.  some send special 'repeat' code.  you might need figure out original remote does.

to repeat key, try:

code: [select]

 void loop()
{
  char key = kpd.getkey();
  if(key)  // check valid key.
  {
    while (kpd.ispressed(key)) {
      switch (key)
      {

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