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<div id="projectname">Sensor Watch
 <span id="projectnumber">0.0.0</span>
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<div id="projectbrief">A board replacement for the classic Casio F-91W wristwatch, powered by a Microchip SAM L22 microcontroller.</div>
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<li class="navelem"><a class="el" href="dir_f1a087a6659d970f5756e21fc1ac4961.html">watch-library</a></li><li class="navelem"><a class="el" href="dir_9dad893af07e666757bee97778571595.html">watch</a></li> </ul>
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<div class="title">watch_utility.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * MIT License</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Copyright (c) 2021 Joey Castillo</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a copy</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * of this software and associated documentation files (the "Software"), to deal</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * in the Software without restriction, including without limitation the rights</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * copies of the Software, and to permit persons to whom the Software is</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * furnished to do so, subject to the following conditions:</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * The above copyright notice and this permission notice shall be included in all</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * copies or substantial portions of the Software.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * SOFTWARE.</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  </div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#ifndef _WATCH_UTILITY_H_INCLUDED</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#define _WATCH_UTILITY_H_INCLUDED</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "<a class="code" href="watch_8h.html">watch.h</a>"</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  </div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  </div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">const</span> <span class="keywordtype">char</span> * <a class="code" href="group__utility.html#ga8f3d6ddf5f22bc61e1dc4b569009b127">watch_utility_get_weekday</a>(<a class="code" href="unionwatch__date__time.html">watch_date_time</a> date_time);</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> uint32_t <a class="code" href="group__utility.html#ga94f5cc404949bf4c0ac4bc4770ec8eda">watch_utility_convert_to_unix_time</a>(uint16_t year, uint8_t month, uint8_t day, uint8_t hour, uint8_t minute, uint8_t second, uint32_t utc_offset);</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  </div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> uint32_t <a class="code" href="group__utility.html#gaffafef58755ff2704cf93fe1a0849a27">watch_utility_date_time_to_unix_time</a>(<a class="code" href="unionwatch__date__time.html">watch_date_time</a> date_time, uint32_t utc_offset);</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  </div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <a class="code" href="unionwatch__date__time.html">watch_date_time</a> <a class="code" href="group__utility.html#ga396e56109234aaa00993c3dd84f3f43c">watch_utility_date_time_from_unix_time</a>(uint32_t timestamp, uint32_t utc_offset);</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  </div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="keywordtype">float</span> <a class="code" href="group__utility.html#ga2753ff031c28202d23b0f3e80de2c920">watch_utility_thermistor_temperature</a>(uint16_t value, <span class="keywordtype">bool</span> highside, <span class="keywordtype">float</span> b_coefficient, <span class="keywordtype">float</span> nominal_temperature, <span class="keywordtype">float</span> nominal_resistance, <span class="keywordtype">float</span> series_resistance);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  </div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor">#endif</span></div>
<div class="ttc" id="agroup__utility_html_ga2753ff031c28202d23b0f3e80de2c920"><div class="ttname"><a href="group__utility.html#ga2753ff031c28202d23b0f3e80de2c920">watch_utility_thermistor_temperature</a></div><div class="ttdeci">float watch_utility_thermistor_temperature(uint16_t value, bool highside, float b_coefficient, float nominal_temperature, float nominal_resistance, float series_resistance)</div><div class="ttdoc">Returns a temperature in degrees Celsius for a given thermistor voltage divider circuit.</div><div class="ttdef"><b>Definition:</b> watch_utility.c:149</div></div>
<div class="ttc" id="agroup__utility_html_ga396e56109234aaa00993c3dd84f3f43c"><div class="ttname"><a href="group__utility.html#ga396e56109234aaa00993c3dd84f3f43c">watch_utility_date_time_from_unix_time</a></div><div class="ttdeci">watch_date_time watch_utility_date_time_from_unix_time(uint32_t timestamp, uint32_t utc_offset)</div><div class="ttdoc">Returns the UNIX time (seconds since 1970) for a given watch_date_time struct.</div><div class="ttdef"><b>Definition:</b> watch_utility.c:79</div></div>
<div class="ttc" id="agroup__utility_html_ga8f3d6ddf5f22bc61e1dc4b569009b127"><div class="ttname"><a href="group__utility.html#ga8f3d6ddf5f22bc61e1dc4b569009b127">watch_utility_get_weekday</a></div><div class="ttdeci">const char * watch_utility_get_weekday(watch_date_time date_time)</div><div class="ttdoc">Returns a two-letter weekday for the given timestamp, suitable for display in positions 0-1 of the wa...</div><div class="ttdef"><b>Definition:</b> watch_utility.c:28</div></div>
<div class="ttc" id="agroup__utility_html_ga94f5cc404949bf4c0ac4bc4770ec8eda"><div class="ttname"><a href="group__utility.html#ga94f5cc404949bf4c0ac4bc4770ec8eda">watch_utility_convert_to_unix_time</a></div><div class="ttdeci">uint32_t watch_utility_convert_to_unix_time(uint16_t year, uint8_t month, uint8_t day, uint8_t hour, uint8_t minute, uint8_t second, uint32_t utc_offset)</div><div class="ttdoc">Returns the UNIX time (seconds since 1970) for a given date/time in UTC.</div><div class="ttdef"><b>Definition:</b> watch_utility.c:38</div></div>
<div class="ttc" id="agroup__utility_html_gaffafef58755ff2704cf93fe1a0849a27"><div class="ttname"><a href="group__utility.html#gaffafef58755ff2704cf93fe1a0849a27">watch_utility_date_time_to_unix_time</a></div><div class="ttdeci">uint32_t watch_utility_date_time_to_unix_time(watch_date_time date_time, uint32_t utc_offset)</div><div class="ttdoc">Returns the UNIX time (seconds since 1970) for a given watch_date_time struct.</div><div class="ttdef"><b>Definition:</b> watch_utility.c:69</div></div>
<div class="ttc" id="aunionwatch__date__time_html"><div class="ttname"><a href="unionwatch__date__time.html">watch_date_time</a></div><div class="ttdef"><b>Definition:</b> watch_rtc.h:44</div></div>
<div class="ttc" id="awatch_8h_html"><div class="ttname"><a href="watch_8h.html">watch.h</a></div></div>
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