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/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2015 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#pragma once
#include <iostream>
#include <string>
#include <mraa/aio.hpp>
namespace upm {
/**
* @brief DFRobot LM35 Linear Temperature Sensor
* @defgroup lm35 libupm-lm35
* @ingroup dfrobot analog temp
*/
/**
* @library lm35
* @sensor lm35
* @comname DFRobot LM35 Linear Temperature Sensor
* @altname LM35
* @type temp
* @man dfrobot
* @web http://www.dfrobot.com/index.php?route=product/product&product_id=76
* @con analog
*
* @brief API for the DFRobot LM35 Linear Temperature Sensor
*
* This sensor returns an analog voltage proportional to the
* temperature of the ambient environment.
*
* It has a range of 2C to 150C.
*
* This driver was developed using the DFRobot LM35 Linear
* Temperature Sensor
*
* @image html lm35.jpg
* @snippet lm35.cxx Interesting
*/
class LM35 {
public:
/**
* LM35 constructor
*
* @param pin Analog pin to use
* @param aref Analog reference voltage; default is 5.0 V
*/
LM35(int pin, float aref=5.0);
/**
* LM35 destructor
*/
~LM35();
/**
* Returns the temperature in degrees Celcius
*
* @return The Temperature in degrees Celcius
*/
float getTemperature();
protected:
mraa::Aio m_aio;
private:
float m_aref;
// ADC resolution
int m_aRes;
};
}
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