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<div class="title">Charlieplex.h</div> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
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<a name="l00002"></a>00002 <span class="comment"> * Copyright (C) 2012 Southern Storm Software, Pty Ltd.</span>
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<a name="l00003"></a>00003 <span class="comment"> *</span>
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<a name="l00004"></a>00004 <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span>
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<a name="l00005"></a>00005 <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span>
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<a name="l00006"></a>00006 <span class="comment"> * to deal in the Software without restriction, including without limitation</span>
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<a name="l00007"></a>00007 <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span>
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<a name="l00008"></a>00008 <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span>
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<a name="l00009"></a>00009 <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span>
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<a name="l00010"></a>00010 <span class="comment"> *</span>
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<a name="l00011"></a>00011 <span class="comment"> * The above copyright notice and this permission notice shall be included</span>
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<a name="l00012"></a>00012 <span class="comment"> * in all copies or substantial portions of the Software.</span>
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<a name="l00013"></a>00013 <span class="comment"> *</span>
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<a name="l00014"></a>00014 <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS</span>
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<a name="l00015"></a>00015 <span class="comment"> * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span>
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<a name="l00016"></a>00016 <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span>
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<a name="l00017"></a>00017 <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span>
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<a name="l00018"></a>00018 <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span>
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<a name="l00019"></a>00019 <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span>
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<a name="l00020"></a>00020 <span class="comment"> * DEALINGS IN THE SOFTWARE.</span>
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<a name="l00021"></a>00021 <span class="comment"> */</span>
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<a name="l00022"></a>00022
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<a name="l00023"></a>00023 <span class="preprocessor">#ifndef Charlieplex_h</span>
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<a name="l00024"></a>00024 <span class="preprocessor"></span><span class="preprocessor">#define Charlieplex_h</span>
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<a name="l00025"></a>00025 <span class="preprocessor"></span>
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<a name="l00026"></a>00026 <span class="preprocessor">#include <inttypes.h></span>
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<a name="l00027"></a>00027
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<a name="l00028"></a><a class="code" href="classCharlieplex.html">00028</a> <span class="keyword">class </span><a class="code" href="classCharlieplex.html" title="Manage an array of LED's in a charlieplexed arrangement.">Charlieplex</a>
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<a name="l00029"></a>00029 {
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<a name="l00030"></a>00030 <span class="keyword">public</span>:
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<a name="l00031"></a>00031 <a class="code" href="classCharlieplex.html#abfb0d0456bcbadbf60c21f615adacdbd" title="Constructs a new charliexplexing array where the output pins are specified by the numPins entries in ...">Charlieplex</a>(<span class="keyword">const</span> uint8_t *pins, uint8_t numPins);
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<a name="l00032"></a>00032 <a class="code" href="classCharlieplex.html#a4dbe37ccba8ba18139f4e710afdcd103" title="Destroys this charlieplexed array.">~Charlieplex</a>();
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<a name="l00033"></a>00033
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<a name="l00034"></a><a class="code" href="classCharlieplex.html#a5008aa4143d381ce34a3aed1a3843e4e">00034</a> <span class="keywordtype">int</span> <a class="code" href="classCharlieplex.html#a5008aa4143d381ce34a3aed1a3843e4e" title="Returns the number of LED's in this charlieplexed array based on the number of pins.">count</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _count; }
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<a name="l00035"></a>00035
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<a name="l00036"></a><a class="code" href="classCharlieplex.html#a90fd09f24b62424b0b7b8bcdb0140b9d">00036</a> <span class="keywordtype">bool</span> <a class="code" href="classCharlieplex.html#a90fd09f24b62424b0b7b8bcdb0140b9d" title="Returns the value of the LED at index in the charplexed array; true if lit; false if not lit...">led</a>(<span class="keywordtype">int</span> index)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _values[index] != 0; }
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<a name="l00037"></a><a class="code" href="classCharlieplex.html#ab103c9687a0890faf72e4da79e3de0a5">00037</a> <span class="keywordtype">void</span> <a class="code" href="classCharlieplex.html#ab103c9687a0890faf72e4da79e3de0a5" title="Sets the value of the LED at index in the charliplexed array.">setLed</a>(<span class="keywordtype">int</span> index, <span class="keywordtype">bool</span> value) { _values[index] = (value ? 255 : 0); }
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<a name="l00038"></a>00038
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<a name="l00039"></a><a class="code" href="classCharlieplex.html#a89312f2fd1d27c4e56346ed9cccfb9f6">00039</a> uint8_t <a class="code" href="classCharlieplex.html#a89312f2fd1d27c4e56346ed9cccfb9f6" title="Returns the PWM value of the LED at index in the charplexed array; between 0 and 255.">pwmLed</a>(<span class="keywordtype">int</span> index)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _values[index]; }
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<a name="l00040"></a><a class="code" href="classCharlieplex.html#a605a302e13005a1aa3d68d0e22bc474b">00040</a> <span class="keywordtype">void</span> <a class="code" href="classCharlieplex.html#a605a302e13005a1aa3d68d0e22bc474b" title="Sets the PWM value of the LED at index in the charliplexed array; between 0 and 255.">setPwmLed</a>(<span class="keywordtype">int</span> index, uint8_t value) { _values[index] = value; }
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<a name="l00041"></a>00041
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<a name="l00042"></a><a class="code" href="classCharlieplex.html#abb429659a7b1ee4c7306ea659050cb30">00042</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <a class="code" href="classCharlieplex.html#abb429659a7b1ee4c7306ea659050cb30" title="Returns the number of microseconds that each LED should be held on for before moving onto the next in...">holdTime</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _holdTime; }
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<a name="l00043"></a><a class="code" href="classCharlieplex.html#a8502f4c752faba37023ced587695f6a4">00043</a> <span class="keywordtype">void</span> <a class="code" href="classCharlieplex.html#a8502f4c752faba37023ced587695f6a4" title="Sets the number of microseconds that each LED should be held on for before moving onto the next in lo...">setHoldTime</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> us) { _holdTime = us; }
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<a name="l00044"></a>00044
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<a name="l00045"></a>00045 <span class="keywordtype">void</span> <a class="code" href="classCharlieplex.html#a8313edeacd8387c428b8299d52584d6a" title="Runs the multiplexing loop, to display the LED states on the charlieplexed array.">loop</a>();
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<a name="l00046"></a>00046 <span class="keywordtype">void</span> <a class="code" href="classCharlieplex.html#a3c961bfff866e400dad371f0376f096b" title="Refreshes the charlieplexed array by advancing to the next LED that needs to be lit.">refresh</a>();
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<a name="l00047"></a>00047
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<a name="l00048"></a>00048 <span class="keyword">private</span>:
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<a name="l00049"></a>00049 <span class="keywordtype">int</span> _count;
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<a name="l00050"></a>00050 uint8_t *_pins1;
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<a name="l00051"></a>00051 uint8_t *_pins2;
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<a name="l00052"></a>00052 uint8_t *_values;
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<a name="l00053"></a>00053 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> _holdTime;
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<a name="l00054"></a>00054 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> _lastTime;
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<a name="l00055"></a>00055 <span class="keywordtype">int</span> _currentIndex;
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<a name="l00056"></a>00056 uint8_t _pwmPhase;
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<a name="l00057"></a>00057 };
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<a name="l00058"></a>00058
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<a name="l00059"></a>00059 <span class="preprocessor">#endif</span>
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</pre></div></div>
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