thomas
/
website


			
				
					
						
						
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152
							<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>Bluetooth UART (BTM-222) - xythobuz.de</title>
    <meta name="description" content="PCB for the BTM-222 and 5V level converters" />
    <meta name="keywords" content="xythobuz" />
    <link rel="author" href="/xythobuz@xythobuz.de">
    <link rel="shortcut icon" href="/img/favicon.ico">
    <script type="text/javascript" src="/js/sh_main.js"></script>
    <link type="text/css" rel="stylesheet" href="/css/sh_bright.min.css" />
    <link rel="stylesheet" href="/css/style.css" type="text/css" media="screen" />
    <link rel="alternate" type="application/rss+xml" title="Blog" href="/rss.xml">
    <link rel="stylesheet" href="/css/gh-fork-ribbon.css" />
    <link href='http://fonts.googleapis.com/css?family=Droid+Sans:400,700' rel='stylesheet' type='text/css'>
    <script type='text/javascript'>
/* <![CDATA[ */
(function() {
var s = document.createElement('script');
var t = document.getElementsByTagName('script')[0];
s.type = 'text/javascript';
s.async = true;
s.src = '//api.flattr.com/js/0.6/load.js?mode=auto&uid=xythobuz&category=text';
t.parentNode.insertBefore(s, t);
})();
/* ]]> */
</script>
</head>
<body onload="sh_highlightDocument('/js/sh/', '.min.js');">
    
    <div id="header">
        <h1>xythobuz.de</h1>
        <h2>Bluetooth UART (BTM-222)</h2>
    </div>
    <div id="lang"><span id="lang2">Translation: 
<a href='bluetooth.de.html'>de</a> | <a href='bluetooth.html'>en</a>
</span></div>
    <div class="colmask leftmenu"><div class="colleft">
        <div class="content">

            <div id="flattr">
<a class="FlattrButton" href="http://www.xythobuz.de/bluetooth.de.html" title="Bluetooth UART (BTM-222)">PCB for the BTM-222 and 5V level converters</a>
</div>
<div id="twitter">
<a href="https://twitter.com/share" class="twitter-share-button" data-via="xythobuz" data-dnt="true" data-related="xythobuz" data-count="vertical">Tweet</a><script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");</script>
</div>
<div id="reddit">
<script type="text/javascript">reddit_url = "http://www.xythobuz.de/bluetooth.de.html";</script>
<script type="text/javascript" src="http://www.reddit.com/static/button/button2.js"></script>
</div>

            <h1>Bluetooth UART (BTM-222)</h1>
<p>Hier das Layout einer Adapterplatine für den BTM-222 Bluetooth IC im <a href="http://www.rn-wissen.de/index.php/RN-Definitionen">Roboternetz Mini Format</a>. Die Schaltung stammt von <a href="http://www.robotfreak.de/blog/mikrocontroller/preiswerte-bluetooth-anbindung/44">Robotfreak</a>, entspricht aber im Prinzip der Minimalbeschaltung aus dem <a href="/files/btm222.pdf">Datenblatt</a>.</p>
<p><a href="/img/BT_Top.jpg"><img alt="Platine oben" src="/img/BT_Top_small.jpg" /></a>
<a href="/img/BT_Bot.jpg"><img alt="Platine unten" src="/img/BT_Bot_small.jpg" /></a>
<a href="/img/bt_plan.png"><img alt="Schaltplan" src="/img/bt_plan_small.png" /></a>
<a href="/img/BT_Layout.png"><img alt="Layout" src="/img/BT_Layout_small.png" /></a></p>
<p><a href="/files/bluetooth.zip">Layout und Schaltplan als Eagle Dateien</a>.</p>
<table border="1">
  <tr><th>ID</th><th>Wert</th><th>Shop</th></tr>
  <tr><td>R1</td><td>200k Ohm</td><td>-</td></tr>
  <tr><td>R2</td><td>5k Ohm Poti</td><td><a href="http://www.conrad.de/ce/de/product/430722/">Conrad</a></td></tr>
  <tr><td>R3 - R10</td><td>1k Ohm</td><td>-</td></tr>
  <tr><td>Q1 - Q4</td><td>BC547 NPN</td><td><a href="http://www.conrad.de/ce/de/product/155012/">Conrad</a></td></tr>
  <tr><td>IC1</td><td>LM317(LZ)</td><td><a href="http://www.conrad.de/ce/de/product/155585/">Conrad</a></td></tr>
  <tr><td>IC2</td><td>BTM 222</td><td><a href="http://shop.ulrichradig.de/aktive-Bauelemente/Module/Bluetooth-Module-BTM222.html">Ulrich Radig</a></td></tr>
  <tr><td>LED 1+2</td><td>LED 5mm</td><td>-</td></tr>
</table>

<p>Das löten der Standard-Bauteile sollte kein Problem darstellen. Beim BTM-222 empfiehlt es sich, mit einem feinen Lötkolben jeden Pin einzeln anzulöten. Als Antenne kann ein 3,1cm langer Draht verwendet werden.</p>
<h2>Ansteuerung des BTM-222</h2>
<p>Vor der ersten Verwendung muss das BTM-222 Modul konfiguriert werden. Dort werden Geschwindigkeit, Format, Name, PIN und weitere Einstellungen getroffen. Dabei muss das Modul per Hardware-Schnittstelle an einen Computer angeschlossen werden. Nun können die im Datenblatt dokumentierten AT Befehle eingegeben werden. Sehr wichtig hierbei ist, dass das Modul als Zeilenendzeichen nur '\r' erwartet. Wird '\n' oder "\r\n" verwendet quittiert das Modul jegliche Eingabe mit Error.</p>

        <div id="disqus_thread"></div>
<script type="text/javascript">
var disqus_shortname = "xythobuz";
(function() {
var dsq = document.createElement("script"); dsq.type = "text/javascript"; dsq.async = true;
dsq.src = "http://" + disqus_shortname + ".disqus.com/embed.js";
(document.getElementsByTagName("head")[0] || document.getElementsByTagName("body")[0]).appendChild(dsq);
})();
</script>
<noscript>Please enable JavaScript to view the <a href="http://disqus.com/?ref_noscript">comments powered by Disqus.</a></noscript>
<a href="http://disqus.com" class="dsq-brlink">comments powered by <span class="logo-disqus">Disqus</span></a>

        </div>
        <div class="nav">
            <h3>Thomas Buck</h3>

            <div id="logo"><img id="logoImg" src="http://www.gravatar.com/avatar/8d18fec40a74782052fb4c007d212475?s=180" alt="Avatar"></div>

            <p id="bio">
                I'm a 19 year old Information Engineering student from Germany, mostly building cool stuff with AVR microcontrollers. All of my projects are released as Free Software.
            </p>

            <ul id="menuList">
            <li><a href="/index.html">Home</a></li>
<li><a href="/blog.html">Blog</a></li>
<li><a href="/contact.html">Contact</a></li>
<li>&nbsp;</li>
<li><a href="/ledcube.html">8x8x8 LED Cube</a></li>
<li><a href="/yasab.html">YASAB AVR Bootloader</a></li>
<li><a href="/avrnetstack.html">avrNetStack</a></li>
<li><a href="/avrserial.html">AVR Serial Library</a></li>
<li><a href="/serialdebug.html">Serial Debug</a></li>
<li><a href="/ledmatrix.html">LED Matrix</a></li>
<li><a href="/ssop28.html">SSOP28 - DIL Adapter</a></li>
<li><a href="/xyrobot.html">xyRobot</a></li>
<li><a href="/bluetooth.html">Bluetooth UART (BTM-222)</a></li>
<li><a href="/k6x4008.html">K6x4008 SRAM</a></li>
<li><a href="/xyrobotremote.html">xyRobotRemote</a></li>
<li><a href="/rremote.html">rRemote</a></li>
<li>&nbsp;</li>
<li><a href="/c250.html">Mio C250 Unlock</a></li>
<li><a href="/nas.html">IB-NAS6210 Linux</a></li>
<li><a href="/ultimatenotifier.html">Ultimate Notifier Script</a></li>
<li><a href="/serialhelper.html">Serial Helper</a></li>
            </ul>

            <div id="recent">
                Recent blog posts:
                <ul id="recentList">
                <li class="recentList"><a href="/2013_04_04_html5.html">Kein DRM in HTML5</a></li><li class="recentDate">2013-04-04</li>
<li class="recentList"><a href="/2013_04_02_zaphod.html">Neuer Webserver</a></li><li class="recentDate">2013-04-02</li>
<li class="recentList"><a href="/2013_03_25_doxygen.html">xyControl Doxygen Dokumentation</a></li><li class="recentDate">2013-03-25</li>
<li class="recentList"><a href="/2013_03_16_pid.html">xyCopter PID-Parameter</a></li><li class="recentDate">2013-03-16</li>
<li class="recentList"><a href="/2013_03_13_test_rig.html">Quadrocopter Test Rig Video</a></li><li class="recentDate">2013-03-13</li>
                </ul>
            </div>
        </div>
    </div></div>

    <img id="dude" alt="The Dude abides..." src="/img/dude.png">
    <img id="walter" alt="Mark it zero!" src="/img/walter.png">

    <div id="footer">
        Built with <a href="http://bitbucket.org/obensonne/poole">Poole</a>
        &middot;
        Licensed as <a href="http://creativecommons.org/licenses/by/3.0">CC-BY</a>
        &middot;
        <a href="http://validator.w3.org/check?uri=referer">Validate HTML</a>
        &middot;
        <a href="http://jigsaw.w3.org/css-validator/validator?uri=xythobuz.de%2Fstyle.css&amp;profile=css3">Validate CSS</a>
        &middot;
        <a href="http://feed1.w3.org/check.cgi?url=http://www.xythobuz.de/rss.xml">Validate RSS</a>
        &middot;
        <a href="http://www.validome.org/google/validate?url=http://www.xythobuz.de&amp;googleTyp=SITEMAP">Validate Sitemap</a>
    </div>
    <img src="/stats/count.php?img" alt="Analytics">
    <script src="http://gitforked.com/api/1.1/button.js" type="text/javascript"></script>
</body>
</html>