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124 lines
3.7 KiB
C++
124 lines
3.7 KiB
C++
/*
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* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
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* Copyright (c) 2014 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 <string>
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#include <math.h>
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#include <mraa/aio.h>
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#include <mraa/gpio.h>
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namespace upm {
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#define NUMBER_OF_SAMPLES 500
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#define ADC_RESOLUTION 1024
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#define SUPPLYVOLTAGE 5100
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#define CURRENT_RATIO 2000.0
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#define HIGH 1
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#define LOW 0
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#define TRUE HIGH
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#define FALSE LOW
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/**
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* @brief ECS1030 Electricity Sensor library
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* @defgroup ecs1030 libupm-ecs1030
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* @ingroup sparkfun analog electric
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*/
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/**
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* @library ecs1030
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* @sensor ecs1030
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* @comname ECS1030 Non-Invasive Current Sensor
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* @type electric
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* @man sparkfun
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* @con analog
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*
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* @brief C++ API for the ECS1030 Non-Invasive Current/Electricity Sensor
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*
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* This non-invasive current sensor can be clamped around the supply line of
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* an electrical load to tell you how much current is passing through it. It
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* does this by acting as an inductor and responding to the magnetic field
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* around a current-carrying conductor. This particular current sensor will
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* measure a load up to 30 Amps which makes it great for building your own
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* energy monitors.
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*
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* @snippet ecs1030.cxx Interesting
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*/
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class ECS1030 {
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public:
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static const uint8_t DELAY_MS = 20000 / NUMBER_OF_SAMPLES; /* 1/50Hz is 20ms period */
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static const uint8_t VOLT_M = 5.1 / 1023;
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static const uint8_t R_LOAD = 2000.0 / CURRENT_RATIO;
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/**
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* Instanciates a ECS1030 (current sensor) object
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*
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* @param pinNumber number of the data pin
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*/
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ECS1030 (uint8_t pinNumber);
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/**
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* ECS1030 object destructor, basicaly it close the GPIO.
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*/
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~ECS1030 ();
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/**
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* Return currency data for the sampled period
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*/
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double getCurrency_A ();
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/**
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* Return power data for the sampled period
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*/
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double getPower_A ();
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/**
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* Return currency data for the sampled period
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*/
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double getCurrency_B ();
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/**
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* Return power data for the sampled period
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*/
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double getPower_B ();
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/**
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* Return name of the component
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*/
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std::string name() {
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return m_name;
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}
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private:
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std::string m_name;
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mraa_aio_context m_dataPinCtx;
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double m_calibration;
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int m_lastSample;
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double m_lastFilter;
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int m_sample;
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double m_filteredSample;
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};
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}
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