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/**
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 * Copyright (c) 2007 Colony Project
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 * 
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 * Permission is hereby granted, free of charge, to any person
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 * obtaining a copy of this software and associated documentation
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 * files (the "Software"), to deal in the Software without
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 * restriction, including without limitation the rights to use,
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 * copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * copies of the Software, and to permit persons to whom the
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 * Software is furnished to do so, subject to the following
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 * conditions:
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 * 
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 * The above copyright notice and this permission notice shall be
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 * included in all copies or substantial portions of the Software.
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 * 
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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 * OTHER DEALINGS IN THE SOFTWARE.
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 **/
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/**
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 * @file battery.h
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 * @brief Definitions for checking battery voltage.
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 * 
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 * Contains definitions for checking the voltage of the 
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 * battery.
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 *
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 * @author Colony Project, CMU Robotics Club
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 **/
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#ifndef _BATTERY_H_
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#define _BATTERY_H_
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/**
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 * @addtogroup battery
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 * @{
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 **/
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/** @brief Normal battery voltage. (6 V) **/
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#define BATTERY_NORMALV 154
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/** @brief Charging battery voltage. (7 V) **/
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#define BATTERY_CHARINGV 179
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/** @brief Low battery voltage. ( < 6 V) **/
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#define BATTERY_LOWV 152
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/** @brief Read the battery voltage. **/
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int battery8(void);
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/** @brief Read the battery voltage in deciVolts. **/
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int battery(void);
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/** @brief Check if the battery is low. **/
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char battery_low(void);
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/** @brief Get an average battery voltage reading. **/
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int battery8_avg(int n_samples);
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/** @} **/ //end addtogroup
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#endif
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