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95 lines
2.5 KiB
C++
95 lines
2.5 KiB
C++
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2015 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following 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 OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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#include <iostream>
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#include <string>
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#include <mraa/aio.hpp>
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namespace upm {
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/**
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* @brief DFRobot LM35 Linear Temperature Sensor
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* @defgroup lm35 libupm-lm35
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* @ingroup dfrobot analog temp
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*/
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/**
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* @library lm35
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* @sensor lm35
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* @comname DFRobot LM35 Linear Temperature Sensor
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* @altname LM35
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* @type temp
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* @man dfrobot
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* @web http://www.dfrobot.com/index.php?route=product/product&product_id=76
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* @con analog
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*
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* @brief API for the DFRobot LM35 Linear Temperature Sensor
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*
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* This sensor returns an analog voltage proportional to the
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* temperature of the ambient environment.
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*
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* It has a range of 2C to 150C.
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*
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* This driver was developed using the DFRobot LM35 Linear
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* Temperature Sensor
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*
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* @image html lm35.jpg
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* @snippet lm35.cxx Interesting
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*/
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class LM35 {
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public:
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/**
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* LM35 constructor
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*
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* @param pin Analog pin to use
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* @param aref Analog reference voltage; default is 5.0 V
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*/
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LM35(int pin, float aref=5.0);
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/**
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* LM35 destructor
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*/
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~LM35();
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/**
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* Returns the temperature in degrees Celsius
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*
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* @return The Temperature in degrees Celsius
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*/
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float getTemperature();
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protected:
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mraa::Aio m_aio;
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private:
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float m_aref;
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// ADC resolution
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int m_aRes;
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};
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}
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