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108 lines
3.9 KiB
HTML
108 lines
3.9 KiB
HTML
15 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html>
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<head>
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<title>Arduino - Begin </title>
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<link rel='stylesheet' href='arduino.css' type='text/css' />
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</head>
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<body>
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<div id="page">
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<!--PageHeaderFmt-->
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<div id="pageheader">
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<div class="title"><a href="http://www.arduino.cc"/>Arduino</a></div>
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<div class="search">
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<!-- SiteSearch Google -->
<FORM method=GET action="http://www.google.com/search">
<input type=hidden name=ie value=UTF-8>
<input type=hidden name=oe value=UTF-8>
<INPUT TYPE=text name=q size=25 maxlength=255 value="">
<INPUT type=submit name=btnG VALUE="search">
<input type=hidden name=domains value="http://www.arduino.cc/">
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<input type=hidden name=sitesearch value="http://www.arduino.cc/">
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</FORM>
<!-- SiteSearch Google -->
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</div>
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</div>
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<!--/PageHeaderFmt-->
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<!--PageLeftFmt-->
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<div id="pagenav" style="text-align: right">
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<div style="float: left;">
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<p><a class='wikilink' href='http://arduino.cc/en/Main/Buy'>Buy</a>
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<a class='wikilink' href='http://arduino.cc/en/Main/Software'>Download</a>
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<a class='wikilink' href='Guide_index.html'>Getting Started</a>
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<a class='wikilink' href='http://arduino.cc/en/Tutorial/HomePage'>Learning</a>
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<a class='wikilink' href='index.html'>Reference</a>
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<a class='wikilink' href='http://arduino.cc/en/Main/Hardware'>Hardware</a>
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<a class='wikilink' href='FAQ.html'>FAQ</a>
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</p>
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<p class='vspace'></p>
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</div>
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<a class="urllink" href="http://www.arduino.cc/blog/" rel="nofollow">Blog »</a> |
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<a class="urllink" href="http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl" rel="nofollow">Forum »</a> |
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<a class="urllink" href="http://www.arduino.cc/playground/" rel="nofollow">Playground »</a>
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</div>
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<!--/PageLeftFmt-->
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<div id="pagetext">
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<!--PageText-->
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<div id='wikitext'>
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<h2>Serial.begin(int speed)</h2>
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<h4>Description</h4>
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<p>Sets the data rate in bits per second (baud) for serial data transmission. For communicating with the computer, use one of these rates: 300, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, or 115200. You can, however, specify other rates - for example, to communicate over pins 0 and 1 with a component that requires a particular baud rate.
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</p>
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<p class='vspace'></p><h4>Parameters</h4>
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<p>int <strong>datarate</strong>, in bits per second (baud)
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</p>
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<p class='vspace'></p><h4>Returns</h4>
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<p>nothing
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</p>
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<p class='vspace'></p><h3>Example:</h3>
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<pre>
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void setup() {
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Serial.begin(9600); // opens serial port, sets data rate to 9600 bps
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}
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void loop() {}
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</pre>
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<p class='vspace'></p><p><strong>Arduino Mega example:</strong>
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</p>
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<p class='vspace'></p><pre>
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// Arduino Mega using all four of its Serial ports
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// (Serial, Serial1, Serial2, Serial3),
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// with different baud rates:
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void setup(){
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Serial.begin(9600);
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Serial1.begin(38400);
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Serial2.begin(19200);
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Serial3.begin(4800);
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Serial.println("Hello Computer");
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Serial1.println("Hello Serial 1");
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Serial2.println("Hello Serial 2");
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Serial3.println("Hello Serial 3");
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}
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void loop() {}
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</pre>
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<p class='vspace'></p><p><em>Thanks to Jeff Gray for the mega example</em>
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</p>
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<p class='vspace'></p><h4>See also</h4>
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<ul><li><a class='wikilink' href='Serial_Available.html'>Serial.available</a>()
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</li><li><a class='wikilink' href='Serial_Read.html'>Serial.read</a>()
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</li><li><a class='wikilink' href='Serial_Print.html'>Serial.print</a>(data)
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</li><li><a class='wikilink' href='Serial_Println.html'>Serial.println</a>(data)
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</li></ul><p class='vspace'></p><p><a class='wikilink' href='index.html'>Reference Home</a>
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</p>
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</div>
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</div>
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<!--PageFooterFmt-->
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<div id="pagefooter">
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<a href='Serial_Begin?action=edit.html'>Edit Page</a> | <a href='Serial_Begin?action=diff.html'>Page History</a> | <a href='Serial_Begin?action=print.html' target='_blank'>Printable View</a> | <a href='http://arduino.cc/en/Site/AllRecentChanges'>All Recent Site Changes</a>
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</div>
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<!--/PageFooterFmt-->
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</div>
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</body>
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</html>
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