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208 lines
7.8 KiB
HTML
208 lines
7.8 KiB
HTML
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<p><strong>Reference</strong> <a class='wikilink' href='index.html'>Language</a> | <a class='wikilink' href='Libraries.html'>Libraries</a> | <a class='wikilink' href='Comparison.html'>Comparison</a> | <a class='wikilink' href='Changes.html'>Changes</a>
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</p>
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<p class='vspace'></p><p>This is a very basic example of <span class='wikiword'>SoftwareSerial</span>. It reads in a byte at a time and mirrors it back to you:
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</p>
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<p class='vspace'></p><pre>
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/*
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SoftwareSerial example
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Sample of the SoftwareSerial library. Listens for serial in on pin 2
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and sends it out again on pin 3.
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by Tom Igoe
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based on examples by David Mellis and Heather Dewey-Hagborg
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written: 6 Jan 2007
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*/
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// include the SoftwareSerial library so you can use its functions:
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#include <SoftwareSerial.h>
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#define rxPin 2
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#define txPin 3
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#define ledPin 13
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// set up a new serial port
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SoftwareSerial mySerial = SoftwareSerial(rxPin, txPin);
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byte pinState = 0;
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void setup() {
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// define pin modes for tx, rx, led pins:
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pinMode(rxPin, INPUT);
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pinMode(txPin, OUTPUT);
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pinMode(ledPin, OUTPUT);
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// set the data rate for the SoftwareSerial port
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mySerial.begin(9600);
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}
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void loop() {
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// listen for new serial coming in:
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char someChar = mySerial.read();
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// print out the character:
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mySerial.print(someChar);
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// toggle an LED just so you see the thing's alive.
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// this LED will go on with every OTHER character received:
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toggle(13);
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}
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void toggle(int pinNum) {
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// set the LED pin using the pinState variable:
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digitalWrite(pinNum, pinState);
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// if pinState = 0, set it to 1, and vice versa:
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pinState = !pinState;
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}
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</pre>
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<p class='vspace'></p><p><a class='wikilink' href='index.html'>Reference Home</a>
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<p class='vspace'></p><p><em>Corrections, suggestions, and new documentation should be posted to the <a class='urllink' href='http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?board=swbugs' rel='nofollow'>Forum</a>.</em>
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</p>
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<p class='vspace'></p><p>The text of the Arduino reference is licensed under a
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<a class='urllink' href='http://creativecommons.org/licenses/by-sa/3.0/' rel='nofollow'>Creative Commons Attribution-ShareAlike 3.0 License</a>. Code samples in the reference are released into the public domain.
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