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AD8232: Add string based constructor for Heart Rate Monitor

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This commit is contained in:
Adelin Dobre 2018-06-29 14:02:09 +03:00 committed by Stefan Andritoiu
parent 317a780161
commit 33fcb18cce
2 changed files with 32 additions and 4 deletions
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24
src/ad8232/ad8232.cxx
View File

@ -23,7 +23,7 @@
*/ */
#include <iostream> #include <iostream>
#include "upm_string_parser.hpp"
#include "ad8232.hpp" #include "ad8232.hpp"
using namespace upm; using namespace upm;
@ -34,11 +34,31 @@ AD8232::AD8232(int loPlus, int loMinus, int output, float aref) :
{ {
m_gpioLOPlus.dir(mraa::DIR_IN); m_gpioLOPlus.dir(mraa::DIR_IN);
m_gpioLOMinus.dir(mraa::DIR_IN); m_gpioLOMinus.dir(mraa::DIR_IN);
m_aref = aref; m_aref = aref;
m_ares = (1 << m_aioOUT.getBit()); m_ares = (1 << m_aioOUT.getBit());
} }
AD8232::AD8232(std::string initStr) : mraaIo(initStr), m_gpioLOPlus(mraaIo.gpios[0]),
m_gpioLOMinus(mraaIo.gpios[1]), m_aioOUT(mraaIo.aios[0])
{
std::vector<std::string> upmTokens;
if(mraaIo.getLeftoverStr() != "")
{
upmTokens = UpmStringParser::parse(mraaIo.getLeftoverStr());
}
for (std::string tok : upmTokens)
{
if(tok.substr(0,5) == "volt:")
{
m_aref = std::stof(tok.substr(5));
}
}
m_ares = (1 << m_aioOUT.getBit());
}
AD8232::~AD8232() AD8232::~AD8232()
{ {
} }

12
src/ad8232/ad8232.hpp
View File

@ -27,8 +27,8 @@
#include <sys/time.h> #include <sys/time.h>
#include <mraa/gpio.hpp> #include <mraa/gpio.hpp>
#include <mraa/aio.hpp> #include <mraa/aio.hpp>
#include <mraa/initio.hpp>
#define AD8232_DEFAULT_AREF 3.3 #define AD8232_DEFAULT_AREF 3.3
@ -57,7 +57,7 @@ namespace upm {
* the intent to send that data, via serial or network port, somewhere to * the intent to send that data, via serial or network port, somewhere to
* another piece of software running on a computer that plots the data for * another piece of software running on a computer that plots the data for
* you, like an EKG. * you, like an EKG.
* *
* Processing (https://www.processing.org/) is software * Processing (https://www.processing.org/) is software
* that should work, using information from the SparkFun* website. * that should work, using information from the SparkFun* website.
* *
@ -84,6 +84,13 @@ namespace upm {
*/ */
AD8232(int loPlus, int loMinus, int output, float aref=AD8232_DEFAULT_AREF); AD8232(int loPlus, int loMinus, int output, float aref=AD8232_DEFAULT_AREF);
/**
* Instantiates AD8232 sensor object based on a given string.
*
* @param initStr string containing specific information for AD8232 sensor initialization.
*/
AD8232(std::string initStr);
/** /**
* AD8232 destructor * AD8232 destructor
*/ */
@ -98,6 +105,7 @@ namespace upm {
int value(); int value();
private: private:
mraa::MraaIo mraaIo;
mraa::Gpio m_gpioLOPlus; mraa::Gpio m_gpioLOPlus;
mraa::Gpio m_gpioLOMinus; mraa::Gpio m_gpioLOMinus;
mraa::Aio m_aioOUT; mraa::Aio m_aioOUT;