<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.13"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>Bounce2: bounce_multiple.ino</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/searchdata.js"></script> <script type="text/javascript" src="search/search.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">Bounce2 </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.13 --> <script type="text/javascript"> var searchBox = new SearchBox("searchBox", "search",false,'Search'); </script> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> $(function() { initMenu('',true,false,'search.php','Search'); $(document).ready(function() { init_search(); }); }); </script> <div id="main-nav"></div> </div><!-- top --> <!-- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> </div> <!-- iframe showing the search results (closed by default) --> <div id="MSearchResultsWindow"> <iframe src="javascript:void(0)" frameborder="0" name="MSearchResults" id="MSearchResults"> </iframe> </div> <div class="header"> <div class="headertitle"> <div class="title">bounce_multiple.ino</div> </div> </div><!--header--> <div class="contents"> <p>Detect the falling edge of multiple buttons. Eight buttons with internal pullups. Toggles a LED when any button is pressed. Buttons on pins 2,3,4,5,6,7,8,9</p> <div class="fragment"><div class="line">// Detect the falling edge of multiple buttons.</div><div class="line">// Eight buttons with internal pullups.</div><div class="line">// Toggles a LED when any button is pressed.</div><div class="line">// Buttons on pins 2,3,4,5,6,7,8,9</div><div class="line"></div><div class="line">// Include the Bounce2 library found here :</div><div class="line">// https://github.com/thomasfredericks/Bounce2</div><div class="line">#include <Bounce2.h></div><div class="line"></div><div class="line">#define LED_PIN 13</div><div class="line"></div><div class="line">#define NUM_BUTTONS 8</div><div class="line">const uint8_t BUTTON_PINS[NUM_BUTTONS] = {2, 3, 4, 5, 6, 7, 8, 9};</div><div class="line"></div><div class="line">int ledState = LOW;</div><div class="line"></div><div class="line">Bounce * buttons = new Bounce[NUM_BUTTONS];</div><div class="line"></div><div class="line">void setup() {</div><div class="line"></div><div class="line"> for (int i = 0; i < NUM_BUTTONS; i++) {</div><div class="line"> buttons[i].attach( BUTTON_PINS[i] , INPUT_PULLUP ); //setup the bounce instance for the current button</div><div class="line"> buttons[i].interval(25); // interval in ms</div><div class="line"> }</div><div class="line"></div><div class="line"> // Setup the LED :</div><div class="line"> pinMode(LED_PIN, OUTPUT);</div><div class="line"> digitalWrite(LED_PIN, ledState);</div><div class="line"></div><div class="line"></div><div class="line">}</div><div class="line"></div><div class="line">void loop() {</div><div class="line"></div><div class="line"> bool needToToggleLed = false;</div><div class="line"></div><div class="line"></div><div class="line"> for (int i = 0; i < NUM_BUTTONS; i++) {</div><div class="line"> // Update the Bounce instance :</div><div class="line"> buttons[i].update();</div><div class="line"> // If it fell, flag the need to toggle the LED</div><div class="line"> if ( buttons[i].fell() ) {</div><div class="line"> needToToggleLed = true;</div><div class="line"> }</div><div class="line"> }</div><div class="line"></div><div class="line"> // if a LED toggle has been flagged :</div><div class="line"> if ( needToToggleLed ) {</div><div class="line"> // Toggle LED state :</div><div class="line"> ledState = !ledState;</div><div class="line"> digitalWrite(LED_PIN, ledState);</div><div class="line"> }</div><div class="line"></div><div class="line"></div><div class="line">}</div><div class="line"></div></div><!-- fragment --> </div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.13 </small></address> </body> </html>