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<!DOCTYPE html> <html lang="zh-TW"> <head> <meta charset="UTF-8"> <meta http-equiv="pragma" content="no-cache"> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"> <meta name="author" content="webduino.io"> <meta name="copyright" content="webduino.io"> <meta itemprop="name" content="webduino.io"> <link rel="icon" href="../img/layout/favicon.ico" type="image/x-icon"> <title>教學範例 9:按鈕開關 :::: Webduino = Web × Arduino</title> <meta name="description" content="開關是日常生活中很常見的電子零件,藉由開和關的訊號,可以控制各種不同的家電,這個範例將會展示,如何藉由獲得按鈕開關的訊號,並且進一步由訊號來控制網頁裡的圖片或 LED 燈的明暗。"> <meta itemprop="description" content="開關是日常生活中很常見的電子零件,藉由開和關的訊號,可以控制各種不同的家電,這個範例將會展示,如何藉由獲得按鈕開關的訊號,並且進一步由訊號來控制網頁裡的圖片或 LED 燈的明暗。"> <meta property="og:description" content="開關是日常生活中很常見的電子零件,藉由開和關的訊號,可以控制各種不同的家電,這個範例將會展示,如何藉由獲得按鈕開關的訊號,並且進一步由訊號來控制網頁裡的圖片或 LED 燈的明暗。"> <link rel="canonical" href="https://tutorials.webduino.io/zh-tw/docs/basic/component/button.html"> <meta property="og:title" content="教學範例 9:按鈕開關"> <meta property="og:url" content="https://webduino.io/tutorials/tutorial-09-button-led.html"> <meta property="og:image" content="https://webduino.io/img/tutorials/tutorial-09-01s.jpg"> <meta itemprop="image" content="https://webduino.io/img/tutorials/tutorial-09-01s.jpg"> <script src="../js/lib/jquery.min.js"></script> <script src="../js/lib/jquery.lazyload.min.js"></script> <script src="../js/lib/run_prettify.js"></script> <script src="../js/layout-20171211.js"></script> <script src="../js/tutorials.js"></script> <script src="../js/lib/disqus.js"></script> <link rel="stylesheet" href="../style/css/lib/tomorrow.css"> <link rel="stylesheet" href="../style/css/layout.css"> <link rel="stylesheet" href="../style/css/sub-header.css"> <link rel="stylesheet" href="../style/css/tutorials-content.css"> <link rel="stylesheet" href="../style/css/lib/font-awesome.css"> <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
})(window,document,'script','dataLayer','GTM-TT4TZ8L');</script> </head> <body> <header class="path-0"> <a class="logo" href="index.html" data-name="layout-header-logo"></a> <div class="mobile-menu"></div> <div class="menu"> <a href="index.html" class="index" data-name="layout-mobile-menu">首頁</a> <a href="tutorials.html" class="tutorials" data-name="layout-mobile-menu">教學範例</a> <a href="buy.html" class="buy" data-name="layout-mobile-menu">產品總覽</a> <a href="activity.html" class="activity" data-name="layout-mobile-menu">課程活動</a> <a href="about.html" class="about" data-name="layout-mobile-men">關於我們</a> <a href="en/index.html" class="english" data-name="layout-mobile-men">English</a> </div> </header> <header class="path-1"> <a class="logo" href="../index.html"></a> <div class="mobile-menu"></div> <div class="menu"> <a href="../index.html" class="index" data-name="layout-menu">首頁</a> <a href="../tutorials.html" class="tutorials" data-name="layout-menu">教學範例</a> <a href="../buy.html" class="buy" data-name="layout-menu">產品總覽</a> <a href="../activity.html" class="activity" data-name="layout-menu">課程活動</a> <a href="../about.html" class="about" data-name="layout-menu">關於我們</a> <a href="../en/index.html" class="english" data-name="layout-menu">English</a> </div> </header> <div class="tutorials-content"> <div class="banner"> </div> <h1>教學範例 9:按鈕開關</h1> <p>開關是日常生活中很常見的電子零件,藉由開和關的訊號,可以控制各種不同的家電,這個範例將會展示,如何藉由獲得按鈕開關的訊號,並且進一步由訊號來控制網頁裡的圖片或 LED 燈的明暗。</p> <div class="buy-this"> <span>按鈕開關相關套件:<a href="https://webduino.io/buy/webduino-package-plus.html" target="_blank">Webduino 基本套件 Plus ( 支援馬克 1 號、Fly )</a></span> <span>Webduino 開發板:<a href="https://webduino.io/buy/component-webduino-v1.html" target="_blank">Webduino 馬克一號</a>、<a href="https://webduino.io/buy/component-webduino-fly.html" target="_blank">Webduino Fly</a>、<a href="https://webduino.io/buy/component-webduino-uno-fly.html" target="_blank">Webduino Fly + Arduino UNO</a></span> </div> <h2>範例影片展示</h2> <p>影片對應範例:<a href="https://blockly.webduino.io/?page=tutorials/button-1">https://blockly.webduino.io/?page=tutorials/button-1</a> </p> <p><iframe class="youtube" src="https://www.youtube.com/embed/Y2I42DsAov8" frameborder="0" allowfullscreen=""></iframe></p> <h2>接線與實作</h2> <p>按鈕開關是一個很常見的元件,當我們進行點壓的時候,按鈕上的四隻腳會呈現全部通路的情形,為了避免有短路的發生,所以我們要接一顆電阻進行保護,下圖是按鈕開關的原理圖。</p> <p><img src="../img/tutorials/tutorial-09-02.jpg"></p> <p>按鈕開關的接法剛好利用麵包板中間斷路的設計,將四隻腳兩兩成對橫跨兩邊,如此一來按下開關就會四隻腳通路,然後在接 GND 的一側用電阻連接 ( 這種方式稱作下拉電阻,如果接在正電的一側稱之上拉電組 )</p> <p>馬克一號接線示意圖:</p> <p><img src="../img/tutorials/tutorial-09-03.jpg"></p> <p>Fly 接線示意圖:</p> <p><img src="../img/tutorials/tutorial-09-03-fly.jpg"></p> <p>實際接線照片:</p> <p><img src="../img/tutorials/tutorial-09-04.jpg"></p> <p><img src="../img/tutorials/tutorial-09-05.jpg"></p> <div class="buy-this"> <span>按鈕開關相關套件:<a href="https://webduino.io/buy/webduino-package-plus.html" target="_blank">Webduino 基本套件 Plus ( 支援馬克 1 號、Fly )</a></span> <span>Webduino 開發板:<a href="https://webduino.io/buy/component-webduino-v1.html" target="_blank">Webduino 馬克一號</a>、<a href="https://webduino.io/buy/component-webduino-fly.html" target="_blank">Webduino Fly</a>、<a href="https://webduino.io/buy/component-webduino-uno-fly.html" target="_blank">Webduino Fly + Arduino UNO</a></span> </div> <h2>Webduino Blockly 操作解析</h2> <p>打開 Webduino Blockly 編輯工具 ( <a href="https://blockly.webduino.io">https://blockly.webduino.io</a> ),因為這個範例會用網頁「顯示文字」來根據開關的狀態,顯示不同的文字,所以要先點選右上方「網頁互動測試」的按鈕,打開內嵌測試的網頁,用下拉選單選擇「顯示文字」。</p> <p><img src="../img/tutorials/tutorial-09-06.jpg"></p> <p>把開發板放到編輯畫面裡,填入對應的 Webduino 開發板名稱,開發板內放入按鈕積木,名稱設定為 button,腳位設定為 11,接著放入三個按鈕的動作,分別是按下、放開和長按,並且讓不同的動作會顯示不同的文字。</p> <p><img src="../img/tutorials/tutorial-09-07.jpg"></p> <p>完成後,確認開發板上線 ( 點選「<a href="https://webduino.io/device.html">檢查連線狀態</a>」查詢 ),點選紅色的執行按鈕就可以按按看按鈕開關,就會看到顯示文字顯示出對應的文字了。 ( 解答:<a href="https://blockly.webduino.io/#-K7EhniKOnrgyWt18E4t">https://blockly.webduino.io/#-K7EhniKOnrgyWt18E4t</a> )</p> <p><img src="../img/tutorials/tutorial-09-08.jpg"></p> <h2>程式碼解析 ( <a href="http://bin.webduino.io/vaku/edit?html,css,js,output">完整程式碼</a>、<a href="https://webduino.io/device.html">檢查連線狀態</a> )</h2> <p>HTML 的 header 引入 <code>webduino-all.min.js</code>,目的在讓瀏覽器可以支援 WebComponents 以及 Webduino 所有的元件,如果是用 Blockly 編輯工具產生的程式碼,則要額外引入 <code>webduino-blockly.js</code>。</p> <pre><code><script src="https://webduino.io/components/webduino-js/dist/webduino-all.min.js"></script>
<script src="https://webduinoio.github.io/webduino-blockly/webduino-blockly.js"></script>
</code></pre><p>HTML 裡頭有一個 span,負責顯示文字。</p> <pre><code><span id="demo-area-01-show">123</span>
</code></pre><p>JavaScript 可以看到 button 具有一個 on 的事件,裡面第一個參數就是按鈕開關的動作,pressed 是按下,released 是放開,longPress 則是長按,第二個參數是回呼函式,把要做什麼事情寫在這邊就可以。</p> <pre><code>var button;
boardReady('', function (board) {
board.samplingInterval = 20;
button = getButton(board, 11);
button.on("pressed",function(){
console.log("pressed");
window.alert('AAA');
});
button.on("released",function(){
console.log("released");
window.alert('BBB');
});
button.on("longPress",function(){
console.log("longPress");
window.alert('CCC');
});
});
</code></pre><p>以上就是利用按鈕開關的按下、放開與長按,來改變網頁裡面的顯示文字。<br>完整程式碼:<a href="http://bin.webduino.io/vaku/edit?html,css,js,output">http://bin.webduino.io/vaku/edit?html,css,js,output</a><br>解答:<a href="https://blockly.webduino.io/#-K7EhniKOnrgyWt18E4t">https://blockly.webduino.io/#-K7EhniKOnrgyWt18E4t</a></p> <h2>按鈕開關的延伸教學:</h2> <p><a href="https://blockly.webduino.io/?lang=zh-hant&page=tutorials/button-2#-JvWu7mS_OoeRvE-m6mD">Webduino Blockly 課程 4-2:點擊按鈕開關增加數字</a><br><a href="https://blockly.webduino.io/?lang=zh-hant&page=tutorials/button-3#-JvWuaeLK-rrGi66lVIM">Webduino Blockly 課程 4-3:點擊按鈕開關改變圖片位置</a><br><a href="https://blockly.webduino.io/?lang=zh-hant&page=tutorials/button-4#-JvY90I0qUoJR2yi34lj">Webduino Blockly 課程 4-4:點擊按鈕開關玩賽跑小遊戲</a><br><a href="https://blockly.webduino.io/?lang=zh-hant&page=tutorials/button-4#-JvY90I0qUoJR2yi34lj">Webduino Blockly 課程 4-4:點擊按鈕開關玩賽跑小遊戲</a> <a href="https://blockly.webduino.io/?lang=zh-hant&page=tutorials/button-5#-JxJpqetsCxULbi4Iier">Webduino Blockly 課程 4-5:點擊按鈕開關控制 Youtube</a> </p> <div class="buy-this"> <span>按鈕開關相關套件:<a href="https://webduino.io/buy/webduino-package-plus.html" target="_blank">Webduino 基本套件 Plus ( 支援馬克 1 號、Fly )</a></span> <span>Webduino 開發板:<a href="https://webduino.io/buy/component-webduino-v1.html" target="_blank">Webduino 馬克一號</a>、<a href="https://webduino.io/buy/component-webduino-fly.html" target="_blank">Webduino Fly</a>、<a href="https://webduino.io/buy/component-webduino-uno-fly.html" target="_blank">Webduino Fly + Arduino UNO</a></span> </div> <a class="arrow arrow-r pre-next-button" data-name="pre-next-arrow"></a> <a class="arrow arrow-l pre-next-button" data-name="pre-next-arrow"></a> <div class="pre-next"> <div> <div class="pre"></div> <div class="next"></div> </div> </div> <div class="note-chicken"></div> <div class="others"> <i class="fa fa-times note-close-btn"></i> <h5>如果您還想了解更多,可以參考:</h5> <div class="others-link otehrs-read"> 1. 完整教學範例:<a href="https://tutorials.webduino.io" data-name="noteLink">https://tutorials.webduino.io</a> <br> 2. Blockly 教學:<a href="https://goo.gl/h6s7GY" data-name="noteLink">https://goo.gl/h6s7GY</a> <br> 3. 產品總覽:<a href="https://webduino.io/buy.html" target="_blank" data-name="noteLink">https://webduino.io/buy.html <i class="fa fa-share-square-o"></i></a> <br> 4. 露天賣場:<a href="http://goo.gl/0Dj9ip" target="_blank" data-name="noteLink">http://goo.gl/0Dj9ip <i class="fa fa-share-square-o"></i></a> </div> </div> <div class="popup"> <div class="whitebox"> <span class="popup-close">X</span> <img src="https://webduinoio.github.io/tutorials/img/tutorials/boy.png"> <h3>Webduino 全新教學網站上線囉</h3> <p>本篇文章已經有更新的版本,趕快前往閱讀吧!</p> <a href="https://tutorials.webduino.io/" class="popup-new-article new-tutorials go" target="_blank">立即閱讀</a> </div> </div> </div> <div class="disqus"> <div id="disqus_thread"></div> </div> <footer> <div class="w-20 screen-copyright"> <div class="logo"> <a href="index.html"><img src="https://webduino.io/img/layout/webduino-gray.png"></a> <h4>Copyright 2017 | All Rights Reserved. Powered by Webduino</h4> </div> </div> <div class="w-80"> <div class="w-100"> <div class="w-25">關於我們 <ul> <li><a href="https://webduino.io/" target="blank">首頁</a></li> <li><a href="about.html" target="blank">關於我們</a></li> <li><a href="partner.html" target="blank">合作夥伴</a></li> </ul> </div> <div class="w-25">教材 <ul> <li><a href="https://tutorials.webduino.io/" target="blank">學習手冊</a></li> <li><a href="activity.html" target="blank">課程活動</a></li> <li><a href="https://tutorials.webduino.io/zh-tw/docs/faq/index.html" target="blank">常見問題</a></li> </ul> </div> <div class="w-25">硬體產品 <ul> <li><a href="buy.html" target="blank">開發板與電子零件</a></li> <li><a href="http://class.ruten.com.tw/user/index00.php?s=webduino" target="blank">露天賣場</a></li> </ul> </div> <div class="w-25">軟體服務 <ul> <li><a href="https://cloud.webduino.io/" target="blank">雲端平台</a></li> <li><a href="https://blockly.webduino.io/" target="blank">Webduino Blockly 體驗版</a></li> </ul> </div> </div> <div class="w-100"> <hr> </div> <div class="w-100"> <div class="w-50">聯絡我們 <ul> <li>+886 7 3388511</li> <li>[email protected]</li> <li>807 高雄市前鎮區復興四路 12 號 2 樓之 6</li> </ul> </div> <div class="w-50">社群媒體 <div><a href="https://www.facebook.com/webduino" target="blank"><i class="fa fa-facebook"></i></a><a href="https://www.youtube.com/channel/UCUk3U7QZqijQfE-7rAh_INQ" target="blank"><i class="fa fa-youtube"></i></a><a href="https://github.com/webduinoio" target="blank"><i class="fa fa-github"></i></a></div> </div> </div> </div> </footer> <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-TT4TZ8L" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript> </body> </html>