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<h1>Battery</h1>Functions for reading battery voltage.
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<a href="#_details">More...</a><table border="0" cellpadding="0" cellspacing="0">
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<tr><td></td></tr>
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<tr><td colspan="2"><br><h2>Defines</h2></td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g8d3e83b7f2ff00064ba16519d1589cfd"></a><!-- doxytag: member="battery::BATTERY_NORMALV" ref="g8d3e83b7f2ff00064ba16519d1589cfd" args="" -->
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#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__battery.html#g8d3e83b7f2ff00064ba16519d1589cfd">BATTERY_NORMALV</a>&nbsp;&nbsp;&nbsp;154</td></tr>
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<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Normal battery voltage. (6 V). <br></td></tr>


    		
  

  

    
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<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gc955a8295474a62e5faeaf28abf89c6b"></a><!-- doxytag: member="battery::BATTERY_CHARINGV" ref="gc955a8295474a62e5faeaf28abf89c6b" args="" -->


    		
  

  

    
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#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__battery.html#gc955a8295474a62e5faeaf28abf89c6b">BATTERY_CHARINGV</a>&nbsp;&nbsp;&nbsp;179</td></tr>


    		
  

  

    
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<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Charging battery voltage. (7 V). <br></td></tr>


    		
  

  

    
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<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gb23d2e4155f65f05628d1b48430c6b18"></a><!-- doxytag: member="battery::BATTERY_LOWV" ref="gb23d2e4155f65f05628d1b48430c6b18" args="" -->


    		
  

  

    
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#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__battery.html#gb23d2e4155f65f05628d1b48430c6b18">BATTERY_LOWV</a>&nbsp;&nbsp;&nbsp;152</td></tr>


    		
  

  

    
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<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Low battery voltage. ( &lt; 6 V). <br></td></tr>


    		
  

  

    
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<tr><td colspan="2"><br><h2>Functions</h2></td></tr>


    		
  

  

    
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<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__battery.html#ga17c87ea3dd1f7539005ac596efe1b32">battery8</a> (void)</td></tr>


    		
  

  

    
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<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Read the battery voltage.  <a href="#ga17c87ea3dd1f7539005ac596efe1b32"></a><br></td></tr>


    		
  

  

    
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<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__battery.html#g538631dcf134d98d7301d800a744e4d9">battery</a> (void)</td></tr>


    		
  

  

    
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<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Read the battery voltage in deciVolts.  <a href="#g538631dcf134d98d7301d800a744e4d9"></a><br></td></tr>


    		
  

  

    
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<tr><td class="memItemLeft" nowrap align="right" valign="top">char&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__battery.html#g4febf636fecb12a276edb51f5b9cc61e">battery_low</a> (void)</td></tr>


    		
  

  

    
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<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Check if the battery is low.  <a href="#g4febf636fecb12a276edb51f5b9cc61e"></a><br></td></tr>


    		
  

  

    
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<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__battery.html#g431bfea596da03bdeead863b16e0c37a">battery8_avg</a> (int n_samples)</td></tr>


    		
  

  

    
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<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Get an average battery voltage reading.  <a href="#g431bfea596da03bdeead863b16e0c37a"></a><br></td></tr>


    		
  

  

    
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</table>


    		
  

  

    
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<hr><a name="_details"></a><h2>Detailed Description</h2>


    		
  

  

    
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Functions for reading battery voltage. 


    		
  

  

    
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<p>


    		
  

  

    
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Contains functions for checking the current voltage of the battery. Include <a class="el" href="battery_8h.html" title="Definitions for checking battery voltage.">battery.h</a> to access these functions. <hr><h2>Function Documentation</h2>


    		
  

  

    
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<a class="anchor" name="g538631dcf134d98d7301d800a744e4d9"></a><!-- doxytag: member="battery.c::battery" ref="g538631dcf134d98d7301d800a744e4d9" args="(void)" -->


    		
  

  

    
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          <td class="memname">int battery           </td>


    		
  

  

    
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          <td>(</td>


    		
  

  

    
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          <td class="paramtype">void&nbsp;</td>


    		
  

  

    
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          <td class="paramname">          </td>


    		
  

  

    
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          <td>&nbsp;)&nbsp;</td>


    		
  

  

    
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          <td width="100%"></td>


    		
  

  

    
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<p>


    		
  

  

    
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Read the battery voltage in deciVolts. 


    		
  

  

    
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Returns the voltage of the battery in deciVolts. analog_init must be called before using this function.<p>


    		
  

  

    
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<dl class="return" compact><dt><b>Returns:</b></dt><dd>the voltage of the battery in deciVolts.</dd></dl>


    		
  

  

    
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="group__analog.html#g4be2ba5e4db17e5be950af682f9ad522" title="Initialize analog ports. Will start running a loop if start_conversion is ADC_START...">analog_init</a>, <a class="el" href="group__battery.html#ga17c87ea3dd1f7539005ac596efe1b32" title="Read the battery voltage.">battery8</a> </dd></dl>


    		
  

  

    
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<p>References <a class="el" href="analog_8c-source.html#l00119">analog8()</a>, and <a class="el" href="analog_8h-source.html#l00092">BATT_PORT</a>.</p>


    		
  

  

    
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<a class="anchor" name="ga17c87ea3dd1f7539005ac596efe1b32"></a><!-- doxytag: member="battery.c::battery8" ref="ga17c87ea3dd1f7539005ac596efe1b32" args="(void)" -->


    		
  

  

    
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          <td class="memname">int battery8           </td>


    		
  

  

    
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          <td>(</td>


    		
  

  

    
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          <td class="paramname">          </td>


    		
  

  

    
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          <td>&nbsp;)&nbsp;</td>


    		
  

  

    
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<p>


    		
  

  

    
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Read the battery voltage. 


    		
  

  

    
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Returns the voltage of the battery as an analog8 reading. 128 is approximately 5 volts. analog_init must be called before using this function.<p>


    		
  

  

    
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<dl class="return" compact><dt><b>Returns:</b></dt><dd>the voltage of the battery as an analog8 reading</dd></dl>


    		
  

  

    
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="group__analog.html#g4be2ba5e4db17e5be950af682f9ad522" title="Initialize analog ports. Will start running a loop if start_conversion is ADC_START...">analog_init</a>, <a class="el" href="group__battery.html#g538631dcf134d98d7301d800a744e4d9" title="Read the battery voltage in deciVolts.">battery</a>, <a class="el" href="group__analog.html#gf1211040ce2c54f12f98df7d47a4eb27" title="Returns an 8-bit analog value from the look up table. Use this instead of analog_get8...">analog8</a> </dd></dl>


    		
  

  

    
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<p>References <a class="el" href="analog_8c-source.html#l00119">analog8()</a>, and <a class="el" href="analog_8h-source.html#l00092">BATT_PORT</a>.</p>


    		
  

  

    
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<p>Referenced by <a class="el" href="battery_8c-source.html#l00142">battery8_avg()</a>, and <a class="el" href="battery_8c-source.html#l00098">battery_low()</a>.</p>


    		
  

  

    
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<a class="anchor" name="g431bfea596da03bdeead863b16e0c37a"></a><!-- doxytag: member="battery.c::battery8_avg" ref="g431bfea596da03bdeead863b16e0c37a" args="(int n_samples)" -->


    		
  

  

    
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          <td class="memname">int battery8_avg           </td>


    		
  

  

    
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          <td>(</td>


    		
  

  

    
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          <td class="paramtype">int&nbsp;</td>


    		
  

  

    
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          <td class="paramname"> <em>n_samples</em>          </td>


    		
  

  

    
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          <td>&nbsp;)&nbsp;</td>


    		
  

  

    
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Get an average battery voltage reading. 


    		
  

  

    
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Averages n_samples battery8 readings. This function may take a while to complete, and is only made available for convenience. analog_init must be called before this function may be used.<p>


    		
  

  

    
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<dl compact><dt><b>Parameters:</b></dt><dd>


    		
  

  

    
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    <tr><td valign="top"></td><td valign="top"><em>n_samples</em>&nbsp;</td><td>the number of times to sample the battery voltage</td></tr>


    		
  

  

    
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<dl class="return" compact><dt><b>Returns:</b></dt><dd>the average reading for the battery voltage, where 128 is approximately 5 Volts.</dd></dl>


    		
  

  

    
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="group__analog.html#g4be2ba5e4db17e5be950af682f9ad522" title="Initialize analog ports. Will start running a loop if start_conversion is ADC_START...">analog_init</a>, <a class="el" href="group__battery.html#g538631dcf134d98d7301d800a744e4d9" title="Read the battery voltage in deciVolts.">battery</a> </dd></dl>


    		
  

  

    
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<p>References <a class="el" href="battery_8c-source.html#l00069">battery8()</a>.</p>


    		
  

  

    
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<a class="anchor" name="g4febf636fecb12a276edb51f5b9cc61e"></a><!-- doxytag: member="battery.c::battery_low" ref="g4febf636fecb12a276edb51f5b9cc61e" args="(void)" -->


    		
  

  

    
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          <td class="memname">char battery_low           </td>


    		
  

  

    
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Check if the battery is low. 


    		
  

  

    
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Checks if the battery is low. analog_init must be called before this function can be used. This function waits for several low battery readings in a row to avoid false positives.<p>


    		
  

  

    
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<dl class="return" compact><dt><b>Returns:</b></dt><dd>1 if the battery is low, 0 otherwise</dd></dl>


    		
  

  

    
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="group__analog.html#g4be2ba5e4db17e5be950af682f9ad522" title="Initialize analog ports. Will start running a loop if start_conversion is ADC_START...">analog_init</a> </dd></dl>


    		
  

  

    
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<p>References <a class="el" href="battery_8c-source.html#l00069">battery8()</a>, and <a class="el" href="battery_8h-source.html#l00050">BATTERY_LOWV</a>.</p>


    		
  

  

    
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<hr size="1"><address style="text-align: right;"><small>Generated on Fri Sep 26 13:39:28 2008 for libdragonfly by&nbsp;


    		
  

  

    
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.5 </small></address>


    		
  

  

    
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